We take a look at marijuana\’s effect on the brain, an \”Earth-like\” exoplanet, the brains distraction controls, a possible new moon for Saturn, spacecraft updates, Curiosity news, and as always take a peek back into history and up in the sky this week.

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Show Notes:

Marijuana’s and Changes to the Brain

• Young adults who used marijuana only recreationally showed significant abnormalities in two key brain regions that are important in emotion and motivation
• The Study
• This is the first study to show casual use of marijuana is related to major brain changes
• Through different methods of neuroimaging, scientists examined the brains of young adults ages 18 to 25, from Boston-area colleges; 20 who smoked marijuana and 20 who didn\’t. Each group had nine males and 11 females
• The users underwent a psychiatric interview to confirm they were not dependent on marijuana
• The changes in brain structures indicate the marijuana users\’ brains are adapting to low-level exposure to marijuana
• Results
• The degree of brain abnormalities in these regions is directly related to the number of joints a person smoked per week, the more joints a person smoked, the more abnormal the shape, volume and density of the brain regions
• Some of these people only used marijuana to get high once or twice a week thinking a little recreational use shouldn\’t cause a problem; however, data directly says this is not the case
• Scientists examined the nucleus accumbens and the amygdala-key regions for emotion and motivation, and associated with addiction-in the brains of casual marijuana users and non-users
• Researchers analyzed three measures: volume, shape and density of grey matter to obtain a comprehensive view of how each region was affected.
• Both these regions in recreational pot users were abnormally altered for at least two of these structural measures and the degree of those alterations was directly related to how much marijuana the subjects used
• What is Means
• The study results fit with animal studies that show when rats are given tetrahydrocannabinol (THC) their brains rewire and form many new connections. THC is the mind-altering ingredient found in marijuana
• Think when people are in the process of becoming addicted, their brains from these new connections
• In animals, these new connections indicate the brain is adapting to the unnatural level of reward and stimulation from marijuana. These connections make other natural rewards less satisfying
• The brain changes suggest that structural changes to the brain are an important early result of casual drug use
• Researchers did not know the THC content of the marijuana, which can range from 5 to 9 percent or even higher, the THC content is much higher today than the marijuana during the 1960s and 1970s, which was often about 1 to 3 percent
• Further Reading / In the News
  • Casual marijuana use linked to brain abnormalities in students | MedicalXPress

— NEWS BYTE —

Another Earth-sized Exo-Planet

• The first Earth-sized exoplanet orbiting within the habitable zone of another star has been confirmed by observations with both the W. M. Keck Observatory and the Gemini Observatory
• The initial discovery, made by NASA\’s Kepler Space Telescope, is one of a handful of smaller planets found by Kepler and verified using large ground-based telescopes
• The System
• The host star, Kepler-186, is an M1-type dwarf star relatively close to our solar system, at about 500 light years and is in the constellation of Cygnus
• The star is very dim, being over half a million times fainter than the faintest stars we can see with the naked eye and is cooler than the Sun
• Five small planets have been found orbiting this star, four of which are in very short-period orbits and are very hot
• This Earth-sized planet, one of five orbiting this star, which is cooler than the Sun, resides in a temperate region where water could exist in liquid form
• Observations
• Neither Kepler (nor any telescope) is currently able to directly spot an exoplanet of this size and proximity to its host star all they can do is eliminate essentially all other possibilities so that the validity of these planets is really the only viable option
• With such a small host star, the team employed a technique that eliminated the possibility that either a background star or a stellar companion could be mimicking what Kepler detected
• Differential Speckle Survey Instrument (DSSI)
• The team obtained extremely high spatial resolution observations from the eight-meter Gemini North telescope on Mauna Kea in Hawaii using a technique called speckle imaging, as well as adaptive optics (AO) observations from the ten-meter Keck II telescope
• The Gemini \”speckle\” data directly imaged the system to within about 400 million miles (about 4 AU, approximately equal to the orbit of Jupiter in our solar system) of the host star and confirmed that there were no other stellar size objects orbiting within this radius from the star
• It works on a principle that utilizes multiple short exposures of an object to capture and remove the noise introduced by atmospheric turbulence producing images with extreme detail
• The System
• Kenny MacLeod ‏@siabost9deas
• Multimedia
• YouTube | Kepler-186f : First Earth-size Planet Discovered in the Habitable Zone of Another Star [HD] | The Mars Underground
• Further Reading / In the News
• First potentially habitable Earth-sized planet confirmed: It may have liquid water | Phys.org

— TWO-BYTE NEWS —

The Brains Distraction Control

• A new study to reveals that our brains rely on an active suppression mechanism to avoid being distracted by salient irrelevant information when we want to focus on a particular item or task
• This discovery opens up the possibility that environmental and/or genetic factors may hinder or suppress a specific brain activity that the researchers have identified as helping us prevent distraction.
• These results show clearly that this is only one part of the equation and that active suppression of the irrelevant objects is another important part
• Psychologists say their discovery could help scientists and health care professionals better treat individuals with distraction-related attentional deficits
• Distraction is a leading cause of injury and death in driving and other high-stakes environments
• Disorders associated with attention deficits, such as ADHD and schizophrenia, may turn out to be due to difficulties in suppressing irrelevant objects rather than difficulty selecting relevant ones
• Researchers are now turning their attention to understanding how we deal with distraction and why we can\’t suppress potentially distracting objects, whether some of us are better at doing so and why that is the case.
• Further Reading / In the News
• ADHD: Scientists discover brain\’s anti-distraction system | ScienceDaily

A New Moon for Saturn?

• A bright clump spotted orbiting Saturn at the outermost edge of its A ring may be a brand new moon in the process of being born
• The effects of this now 1,200-kilometer-long, 10-kilometer-wide arc of icy material were first seen in May 2012 traveling along the edge of the A ring
• The arc is thought to be the result of gravitational perturbations caused by an as-yet unseen embedded object about a kilometer wide – possibly a miniature moon in the process of formation
• The half-mile-wide object has been unofficially named “Peggy,” eventually it may coalesce into a slightly larger moon and move outward, establishing its own orbital path around Saturn
• This is how many of Saturn’s other moons are thought to have formed much further back in the planet’s history
• While it is possible that the bright perturbation is the result of an object’s breakup rather than formation, researchers are still looking forward to finding out more about its evolution.
• Further Reading / In the News
• Is Saturn Making a New Moon? | UniverseToday.com
• NASA Cassini Images May Reveal Birth of New Saturn Moon | NASA.gov
• NASA Cassini Missiom Page

— SPACECRAFT UPDATE—

SpaceX Dragon Delivery Mission

• Last Time on SciByte …
• SciByte 126 | Paraplegic Therapy & Exomoon – International Space Station (ISS) Glitch | April 15, 2014
• Latest Delivery
• The SpaceX 3 Dragon commercial cargo freighter successfully arrived at the International Space Station (ISS) on Easter Sunday morning, April 20
• The mission is the company’s third cargo delivery flight to the station and is loaded with nearly 2.5 tons of science experiments, it will remain attached to the station until May 18
• There are over 150 science experiments loaded aboard the Dragon capsule for research to be conducted by the crews of ISS Expeditions 39 and 40
• CRS-3 mission will deliver some 5000 pounds of science experiments, a high definition Earth observing imaging camera suite (HDEV), a pair of hi tech legs for Robonaut 2, a laser optical communications experiment (OPALS) and essential gear, the VEGGIE lettuce growing experiment, spare parts, crew provisions, food, clothing and supplies to the six person crews
• Included in this delivery is equipment needed for the repair of the Multiplexer-Demultiplexer (MDM) that controls a robotics mobile transporter, but also radiators and a joint to move the station’s solar arrays, among other things.
• Multimedia
• YouTube | U.S. SpaceX Dragon Ship Arrives at the International Space Station with Important cargo | NASA
• Further Reading / In the News
• Easter Sunday Space Station Rendezvous and Berthing for SpaceX Dragon Freighter Succeessful | UnivrseToday.com

New Horizons and Questions About Pluto

• Compositional Model Theories
• Two space researchers have published a paper where they describe three possible interior models of the former planet Pluto
• The possibilities include: an undifferentiated rock/ice mixture, a differentiated rock/ice mixture, and an ocean covered with ice, the third possibility suggests the likelihood, they claim, of tectonic action on the dwarf planet
• Scientists believe that Pluto came to exist as it does today, in part due to a collision billions of years ago that led also to the formation of its moon Charon
• When celestial bodies collide, not only do they knock each other around, they produce heat—heat, the researchers suggest that could still be evident today
• A theory that suggests that shortly after impact, Pluto and Charon were much closer together where the gravity attraction between them would have caused both to be egg shaped.
• As time passed, melted ice from the impact would have created an icy crust on top of an ocean on Pluto
• As Charon moved farther away, the attractive pull would have diminished, causing ice plates to form and crack against one another, a form of tectonics.
• If that were the case, the two add, then in all likelihood, when New Horizons begins sending back images, they should see evidence of such tectonic action—plate edges thrust into the air
• Pluto circles the sun in an elliptical orbit, thus sometimes it\’s much closer to the sun than other times, when near, it has a defined atmosphere, when far away however, its atmosphere actually freezes to its surface
• Something that could hide ridges in the ice and thus evidence of both tectonic activity and an ocean beneath the crust of ice
• New Horizons will arrive during a time when its atmosphere is frozen to the surface, it might be difficult to determine which of the three proposed models actually describes the relationship between its exterior and interior
• Further Reading / In the News
• Research pair offer three possible models of Pluto ahead of New Horizons visit | Phys.org
• New Horizons | NASA

— CURIOSITY UPDATE —

• New Science Location
• Scientists using NASA\’s Curiosity Mars rover are eyeing a rock layer surrounding the base of a small butte, called \”Mount Remarkable,\” as a target for investigating with tools on the rover\’s robotic arm
• The butte stands about 16 feet (5 meters) high. Curiosity\’s science team refers to the rock layer surrounding the base of Mount Remarkable as the \”middle unit\” because its location is intermediate between rocks that form buttes in the area and lower-lying rocks that show a pattern of striations
• Depending on what the mission scientists learn from a close-up look at the rock and identification of chemical elements in it, a site on this middle unit may become the third rock that Curiosity samples with its drill
• Multimedia
• Image Galleries at JPL and Curiosity Mulimedia
• Social Media
• Curiosity Rover @MarsCuriosity
• Further Reading / In the News
• NASA Mars Orbiter Spies Rover Near Martian Butte | mars.jpl.nasa.gov

SCIENCE CALENDAR

Looking back

• April 25, 1990 : 24 years ago : Hubble Space Telescope : In 1990, the $2.5 billion Hubble Space Telescope was deployed in space from the Space Shuttle Discovery into an orbit 381 miles above Earth. It was the first major orbiting observatory, named in honour of American astronomer, Edwin Powell Hubble. It was seven years behind schedule and nearly $2 billion over budget. In orbit, the 94.5-in primary mirror was found to be flawed, giving blurred images and reduced ability to see distant stars. However, correcting optics were successfully installed in 25 Dec 1993. The telescope 43-ft x 14-ft telescope now provides images with a clarity otherwise impossible due to the effect of the earth\’s atmosphere. Instrument packages capture across the electromagnetic spectrum.

Looking up this week

• Solar Eclipse
• On April 29th, an annular solar eclipse occurs over a small D-shaped 500 kilometre wide region of Antarctica
• 2014 has the minimum number of eclipses possible in one year, with four: two partial solars and two total lunars
• This month’s solar eclipse is also a rarity in that it’s a non-central eclipse with one limit, where the center of the Moon’s shadow – known as the antumbra during an annular eclipse – will juuuust miss the Earth and instead pass scant kilometres above the Antarctic continent
• Out of 3,956 annular eclipses occurring from 2000 BCE to 3000 AD, only 68 (1.7%) are of the non-central variety
• An annular eclipse occurs when the Moon is too distant to cover the disk of the Sun, resulting in a bright “annulus” or “ring-of-fire” eclipse
• Several southern Indian Ocean islands and all of Australia will still witness a fine partial solar eclipse from this event, a scattering of islands in the southern Indian Ocean will see a 55% eclipsed Sun.
• In Australia, Perth will see a 55% eclipsed Sun and Sydney will be able to see a 50% partial eclipse low to the horizon in west at sunset
• Don\’t Forget to Use Safe Viewing Practices
• The safest way | Pinhole camera/projector and telescope — pinhole projector
• Optical Filters | Eclipse glasses, welder\’s goggles rated at 14
• Multimedia
• YouTube | Safely See the Sun — Build a Shoebox Pinhole Camera | VideoFromSpace
• YouTube | The April 29th, 2014 Annular Eclipse: Sims from Space | astroguyz
• Further Reading / In the News

• Our Guide to the Bizzare April 29th Solar Eclipse UniverseToday.com

• Keep an eye out for …

• Fri, April 25 | Dawn | The thin crescent Moon is low in the E and left of Venus
• Planets
• Venus | \”Morning Star\” | Look to the E-SE as daylight approached
• Mars | Just past opposition you can see it most of the night. In the evening is is in the SW with Spica below it, both will be at their highest point around local 12pm DST moving towards the NE as dawn approaches
• Jupiter | Twilight | High in the SW sinking towards the W horizon as the night progresses

• Saturn | End of Twilight | Highest in the S around 2am

• Further Reading and Resources

• Sky&Telescope
• SpaceWeather.com
• StarDate.org
• For the Southern hemisphere: SpaceInfo.com.au
• Constellations of the Southern Hemisphere : astronomyonline.org
• Royal Astronomical Society of New Zealand : rasnz.org.nz
• AstronomyNow
• HeavensAbove

The post Marijuana & “Exo-Earth” | SciByte 127 first appeared on Jupiter Broadcasting.

We take a look at habitable zone exoplanets, diabetes treatment advances, water in Jupiter, living on Mars, spacecraft updates, Curiosity news, and as always take a peek back into history and up in the sky this week.

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Show Notes:

More Habitable Zone Exoplanets

• Astronomers have announced that they have found three new, potentially rocky, planets in the habitable zone of their stars by analyzing nearly three years’ worth of data
• Kepler Space Telescope
• As of April 2013, Kepler data has uncovered more than 2,700 potential planets, with about 120 of them having been confirmed to date
• Mission scientists expect that more than 90 percent of the planets detected are real and not illusions in the data
• Until now planets in the habitable zone were discovered by what is known as the radial velocity method, which gives a lower limit for the planet’s mass, but no information about its radius
• While a small radius (less than 2 Earth radii) is a strong indicator that a planet around is indeed rocky it is difficult to assess whether or not a planet is rocky, like the Earth.
• Finding planets in the habitable zones of larger stars is harder because those planets have relatively long orbits and barely cast a shadow as they pass across the faces of their suns
• Kepler-62
• Kepler62 is a red dwarf star, about two-thirds the size of the sun and several hundred degrees Celsius cooler
• It is only 20 percent as bright as the sun and is about 1,200 light years away and contains five planets currently identified
• Two of the worlds, Kepler-62e and Kepler-62f are the smallest exoplanets yet found in a habitable zone, and they might both be covered in water or ice, depending on what kind of atmosphere they might have
• Life on these worlds would be under water with no easy access to metals, to electricity, or fire for metallurgy
• The biggest uncertainty right now is about both planets composition, early evidence suggests that at least 62f is rocky
• Kepler-62e and Kepler-62f would exhibit distinctly different colors and make our search for signatures of life easier on such planets in the near future
• Kepler-62e
• Orbit is 122 days
• 1.6 times the diameter of Earth
• Kepler-62e would have a bit more clouds than Earth according to computer models to sustain an ocean
• An astronomer at the University of Washington not involved in the research says that Kepler-62e may be too close to its star – and therefore too hot – to sustain life
• If 62e is a rocky planet, it’s almost certainly tidally locked with its star, half of its surface always facing the star, and the other always facing away
• Kepler62-f
• Orbit is 267 days
• 1.4 times the diameter of Earth
• Kepler-62f would need the greenhouse effect from plenty of carbon dioxide to warm it enough to host an ocean
• Kepler-69 System
• Kepler-36 is a sun-like star located 2,700 light-years away,
• The Kepler-69 system contains one known planet in that star\’s habitable zone
• Kepler-69c
• 1.7 times bigger than Earth, sits on the inner edge of the habitable zone and is almost certainly a super-Venus rather than a super-Earth
• Habitable Zone Types
• The \”empirical habitable zone\” is where liquid water can exist on the surface of a planet if that planet has sufficient cloud cover
• The \”narrow habitable zone\” is where liquid water can exist on the surface even without the presence of a cloud cover
• Of Note
• According to the Planetary Habitability Laboratory, there are now nine potential habitable worlds outside of our solar system, with 18 more potentially habitable planetary candidates found by Kepler waiting to be confirmed
• Astronomers predict there are 25 potentially habitable exomoons
• Kepler cannot search for signs of life on worlds like Kepler-62e, Kepler-62f and Kepler-69c, but the telescope is paving the way for future missions that should do just that
• Next-generation missions like the Transiting Exoplanet Survey Satellite, which NASA approved earlier this month for launch in 2017, will take on the task of finding nearer planets that astronomers can study in depth
• Multimedia
• YouTube | Animation of the Kepler 62 Planetary System | UniverseTodayVideos
• YouTube | NASA\’s Kepler Discovers Its Smallest \’Habitable Zone\’ Planets to Date | NASASolarSystem
• Infographic | 3 Potentially Habitable Super-Earth Planets Explained | Space.com
• IMAGE | Diagram compares the planets of the inner solar system to Kepler-69 | Image credit: NASA Ames/JPL-Caltech
• IMAGE | Diagram compares the planets of the inner solar system to Kepler-62 | Image credit: NASA Ames/JPL-Caltech
• IMAGE | Current known potentially habitable exoplanets | Credit: Planetary Habitability Laboratory/University of Puerto Rico, Arecibo.
• IMAGE | The habitable zone for different types of stars | Image: L. Kaltenegger (MPIA)
• YouTube | Full Anouncement | Kepler Makes Discoveries Inside the Habitable Zone | NASAtelevision
• Further Reading / In the News
• Discovered! Most Earth-Like Alien Planet & 2 Other Possibly Habitable Worlds | Space.com
• Most Earthlike planets yet seen bring Kepler closer to its holy grail | Atom & Cosmos | Science News
• Habitable Worlds? New Kepler Planetary Systems in Images | UniverseToday.com
• Kepler Team Finds System with Two Potentially Habitable Planets | UniverseToday.com

— NEWS BYTE —

New Possible Diabetes Treatment Option

• Researchers have discovered a hormone that holds promise for a dramatically more effective treatment of type 2 diabetes and believe that the hormone might also have a role in treating type 1, or juvenile, diabetes
• Type 1 Diabetes
• While betatrophin primarily as a treatment for type 2 diabetes, it is believed it might play a role in the treatment of type 1 diabetes as well
• Perhaps boosting the number of beta cells and slowing the progression of that autoimmune disease when it\’s first diagnosed
• Type 2 Diabetes
• Type 2 diabetes is usually caused by a combination of excess weight and lack of exercise and causes patients to slowly lose beta cells and the ability to produce adequate insulin
• Provide this hormone, the type 2 diabetic will make more of their own insulin-producing cells, and this will slow down, if not stop, the progression of their diabetes
• Betatrophin
• The hormone, called betatrophin, causes mice to produce insulin-secreting pancreatic beta cells at up to 30 times the normal rate
• In addition the new beta cells only produce insulin when called for by the body, offering the potential for the natural regulation of insulin
• The researchers know that the hormone exists in human plasma; betatrophin definitely exists in humans
• The Research
• The team wasn\’t just looking at what happens when an animal doesn\’t have enough insulin, they were able to find this a gene that had largely gone unnoticed before
• Another hint came from studying what happens during pregnancy, when there are more beta cells needed, and it turns out that this hormone goes up
• When a woman gets pregnant, her carbohydrate load, her call for insulin, can increase an enormous amount because of the weight and nutrition needs of the fetus
• The Future
• Betatrophin could be in human clinical trials within three to five years, an extremely short time in the normal course of drug discovery and development
• If it works as they hope it will it could eventually mean that instead of taking insulin injections three times a day, you might take an injection of this hormone once a week or month, or even year
• The researchers who discovered betatrophin caution that much work remains to be done before it could be used as a treatment in humans
• Multimedia
• YouTube | Potential Diabetes Breakthrough | Harvard
• Further Reading / In the News
• Potential diabetes breakthrough: Researchers discover new hormone spurring beta cell production | MedicalXPress.com

Soaking up Venom in Blood

• A tiny sponge camouflaged as a red blood cell could soak up toxins ranging from anthrax to snake venom, new research suggests
• Bacteria and Poisons
• One of the mainstay strategies of bacteria and poison is to poke holes in cells, disrupting their internal chemical balance and causing them to burst
• So far, researchers haven\’t had much success creating all-purpose treatments to exploit this vulnerability
• Nanosponges
• Researchers created a tiny spherical core of a lactic acid byproduct, which forms naturally during metabolism in the human body
• To get the outer skin of red blood cells, they used a difference in particle concentration inside and outside the cells to cause them to burst, and then collected their outer membranes
• They then wrapped the cores in the outer surface of the red blood cell
• The nanoparticles, also called nanosponges, act as decoys that lure and inactivate the deadly compounds
• The entire ensemble became a tiny nanosponge, which was about 85 nanometers in diameter, or 100 times smaller than a human hair
• The sponges\’ tiny size means a small amount of blood, for camouflage, can be used to make an effective dose
• In cell cultures, the camouflaged sponges act as decoys, luring the toxins from the bacteria that causes strep throat and bee venom
• The toxins then bind to the structure the \”poisons\” normally use to poke through cells
• When they stick onto the nanosponge, that particular damaging structure gets preoccupied, since the sponges are so small they can circulate freely through blood vessels, and then the body can digest the entire particle
• Experiment
• The team injected 18 mice with a lethal dose of a MRSA, Methicillin-resistant Staphylococcus aureus, toxin. Half the mice then got a dose of the nanosponges
• Whereas all the mice in the control group died, all but one that received the treatment survived
• When injected into mice, the tiny decoys protect mice against lethal doses of a toxin produced by methicillin-resistant Staphylococcus aureus, or MRSA.
• The Future
• The researchers want to see whether the method works in human blood, and against other toxic chemicals, such as scorpion venom and anthrax, which use similar attack strategies
• Because so many bacteria use the same pore-forming strategy, the nanosponges could be used as a universal treatment option when doctors don\’t know exactly what is causing an illness
• Further Reading / In the News
• Tiny Sponge Soaks Up Venom in Blood | Scientific American

— TWO-BYTE NEWS —

Water in Jupiter\’s Clouds

• How Did It Get There?
• In July 1994, the comet Shoemaker-Levy 9 plowed into Jupiter leaving behind millions of gallons of water.
• Water from the impact still makes up at least 95 percent of the water in the planet’s upper atmosphere
• Telescopes had previously spotted water in Jupiter’s upper atmosphere, some 100 kilometers above the planet’s ammonia cloud tops, but those surveys could not determine where the water came from
• Now astronomers have created a high-resolution map of water vapor distribution throughout Jupiter’s atmosphere
• They found that the concentration of water peaked in the planet’s southern hemisphere, right in the region where the comet struck
• More water also appeared at higher altitudes around the planet, which supports the comet as its origin.
• Water from other sources such as Jupiter’s icy moons would likely spread out more evenly around the planet and would gradually filter down to lower altitudes
• Multimedia
• Comet Shoemaker Levy 9 – How The Universe Works | DiscoveryTV
• Further Reading / In the News
• News in Brief: Comet\’s water still hanging around on Jupiter | Atom & Cosmos | Science News

MarsOne and Life on Mars and Science

• Mars colony project will do its best to avoid disturbing potential Red Planet life rather than aggressively hunt it down
• Science and Life
• The Netherlands-based nonprofit Mars One opened its astronaut-selection process on April 22
• They plan to land four people on the Red Planet in 2023 to make a permanent human colony on the Red Planet, with new crews arriving every two years thereafter
• Human explorers will doubtless contaminate whatever site is chosen for the settlement, so the organization will try to pick a place unlikely to host indigenous life to localize the pollution
• Mars One is working with experts to minimize the risks its colonization effort may pose to potential Red Planet lifeforms
• While Mars One hasn\’t picked a precise location for its settlement yet, the organization is targeting a swath of the Red Planet between 40 and 45 degrees north latitude
• Mars One astronauts will not necessarily be scientists
• Anyone over the age of 18 is eligible to apply, with the selection committee prizing traits such as intelligence, resourcefulness, determination and psychological stability over academic background
• Science is not the main focus of what we are doing; although, crewmembers will take some scientific gear with them
• Mars One officials won\’t dictate what the experiments should be, but there will be a budget for equipment that they want to take for scientific research
• Multimedia
• Mars 2023 – Inhabitants wanted | MarsOneProject
• YouTube Channel | Mars One – Human Settlement of Mars
• Further Reading / In the News
• Mars One
• Private Mars Colony Won\’t Seek Martian Life | Mars One | Space.com

— VIEWER FEEDBACK—

Peter, AKA \”Korlus\” | Check This Out!

• On April 4, 2012 he Fermi spacecraft almost ended it\’s mission to map the highest-energy light in the universe because of a collision with a dead Cold-War spy satellite
• What Happened?
• An automatically generated report arrived from NASA\’s Robotic Conjunction Assessment Risk Analysis (CARA) team based at NASA\’s Goddard Space Flight Center was sent to the FERMI team just one week away from an unusually close encounter with Cosmos 1805, a defunct spy satellite dating back to the Cold War.
• The two objects, speeding around Earth at thousands of miles an hour in nearly perpendicular orbits, were expected to miss each other by a mere 700 feet
• An update days later indicated the satellites would occupy the same point in space within 30 milliseconds of each other
• Using thrusters for use at the end of Fermi\’s operating life designed to take it out of orbit and allow it burn up in the atmosphere they were able to adjust the orbit just slightly enough to evade a collision
• The U.S. Space Surveillance Network continues to keep tabs on every artificial object larger than 4 inches across in Earth orbit. Of the 17,000 objects currently tracked, only about 7 percent are active satellites
• Multimedia
• YouTube | Near Miss – Dead Russian Spy Satellite Forces NASA Probe Move | VideoFromSpace
• YouTube | Animation of Earth with Near-Earth Orbital Debris [HD] | TheMarsUnderground
• Further Reading / In the News
• Mars One
• Private Mars Colony Won\’t Seek Martian Life | Mars One | Space.com

— SPACECRAFT UPDATE—

New Atlantis Exhibit Prep

• The Space shuttle Atlantis is set to go on public display June 29 at NASA\’s Kennedy Space Center Visitor Complex in Florida
• Shuttle Reveal
• It was revealed Friday, April 26 after workers spent two days peeling off its protective shrink-wrap cover of the past five months.
• Workers began carefully cutting back the 16,000 square feet (1,486 square meters) of shrink wrap that protected Atlantis as its $100 million exhibition building was completed around it
• By the end of the first day, the shuttle\’s nose, tail, aft engines and left wing were exposed, the workers completed the process the next day, revealing Atlantis\’ right wing and its 60-foot-long (18 meter) payload bay
• Opening the payload bay is set to begin in May, will take about two weeks, as the doors are very slowly hoisted open, one by one.
• Atlantis has been mounted. Thirty feet (9 meters) in the air, the space shuttle has been tilted 43.21 degrees, such that its left wing extends toward the ground.
• Atlantis will appear to be back in space – an effect that will be enhanced by lighting and a mural-size digital screen that will project the Earth\’s horizon behind the shuttle
• Multimedia
• YouTube Clip | Uncovering the Nose
• YouTube Clip | Uncovering a Wing
• YouTube Clip | Peeling Back the Layers
• YouTube | Shuttle Atlantis Unwrapped & Revealed at Kennedy Visitor Center | SpaceVidsNet
• Further Reading / In the News
• Atlantis Exposed: Space Shuttle Fully Unwrapped for NASA Exhibit | Kennedy Space Center | Space.com

SpaceShipTwo

• Last Time on SciByte
• SciByte 91 | Apollo 13 and Brain Training | Virgin Galactic Test Flight
• Lights Hybrid Rocket Engines
• Virgin Galactic’s SpaceShipTwo (SS2) commercial spaceliner named “Enterprise” lit up her hybrid rocket engines in flight and reached supersonic speeds for the first time in history on
• The Breakdown
• Once SpaceShipTwo is operational, WhiteKnightTwo will carry the vehicle up to an altitude of about 50,000 feet (15,240 meters) before releasing it.
• After separation, SpaceShipTwo will accelerate to 2,500 mph (4,000 km/h) and eventually pass an altitude of 62 miles (100 kilometers), the point at which passengers are considered astronauts
• The spaceship will reach a peak altitude of 68 miles (110 km), giving the six passengers and two pilots about five minutes of weightlessness
• Upon re-entry, SpaceShipTwo will be able to land on a conventional runway
• A seat on board a SpaceShipTwo flight costs $200,000. More than 550 people have put down deposits to reserve a spot
• Multimedia
• YouTube Clip | Release and Rocket Start
• YouTube Clip | In Orbit
• YouTube Clip | Weightless M-M\’s
• YouTube | Virgin Galactic 8 5min video
• Further Reading / In the News
• SpaceShipTwo Fires Rocket Engines for First Ever Supersonic Test Flight- Photos & Video | UniverseToday.com

Opportunity Rover Back Fron Glitch

• Mars rover Opportunity has overcome a glitch that put the robot into standby mode late last month
• What Happened?
• Opportunity apparently put itself into standby auto mode, in which it maintains power balance but waits for instructions from the ground, on April 22, after sensing a problem during a routine camera check, mission officials said.
• The rover\’s handlers didn\’t notice the problem until April 27, when Opportunity got back in touch after a nearly three-week communications moratorium
• They then prepared a new set of commands on April 29 designed to get things back to normal, and the fix has apparently worked
• Further Reading / In the News
• Mars Rover Opportunity Back in Action After Glitch | Mars Solar Conjunction | Space.com

— CURIOSITY UPDATE —

• Smithsonian Award
• The team in charge of successfully landing NASA\’s Mars rover Curiosity has received the Smithsonian National Air and Space Museum\’s highest group honor
• The award is for Current Achievement honors outstanding achievements in the fields of aerospace science and technology
• Several NASA planetary mission teams have won the award in previous years, including last year, when NASA\’s Cassini mission to Saturn
• Haiku to Mars
• NASA is inviting members of the public to submit their names and a personal message online for a DVD to be carried aboard a spacecraft that will study the Martian upper atmosphere
• Information in the show was not all correct, corrected information to come next week
• Conjunction
• YouTube | Mars in a Minute: What Happens When the Sun Blocks our Signal? | JPLnews
• Multimedia
• YouTube | Current Achievement Trophy Award 2013: Mars Science Laboratory Entry, Descent and Landing (EDL) Team | airandspace
• YouTube Curiosity Rover Report JPLnews
• Image Galleries at JPL and Curiosity Mulimedia
• Social Media
• Curiosity Rover @MarsCuriosity
• Further Reading / In the News
• National Air and Space Museum’s Trophy Awarded to Joseph Sutter and the Mars Science Laboratory EDL Team | Smithsonian National Air and Space Museum Press Release
• Curiosity Wins National Air and Space Museum Trophy | https://mars.jpl.nasa.gov
• NASA Wants To Send Your Haiku To Mars | Popular Science

SCIENCE CALENDAR

Looking back

• May 01, 1958 : 55 years ago : Van Allen radiation belts : The discovery of the powerful Van Allen radiation belts that surround Earth was published in the Washington Evening Star. The article covered the report made by their discoverer James. A. Van Allen to the joint symposium of the National Academy of Sciences and the American Physical Society in Washington DC. He used data from the Explorer I and Pioneer III space probes of the earth\’s magnetosphere region to reveal the existence of the radiation belts – concentrations of electrically charged particles. Van Allen (born 7 Sep 1914) was also featured on the cover of the 4 May 1959 Time magazine for this discovery. He was the principal investigator on 23 other space probes

Looking up this week

• Keep an eye out for …
• Thurs | May 9 | New Moon is around 8:28pm EDT in the NW
• Fri | May 10 | ~30 min after sunset you might be able to see a very thin crescent moon near Venus
• Fri | May 10 | An annular eclipse of the Sun crosses parts of Australia and the central Pacific. The eclipse is partial for all of Australia, Indonesia, and Hawaii Map and details
• Sat | May 11 | Evening twilight in the W you can see the crescent moon below Jupiter
• Planets
• Venus | About 15-20 min after sunset in the W-NW it i starting to appear in the evening
• Jupiter | The first \”star\” to come out in the W after sunset, appearing a little lower each day and moving towards the horizon over the course of each night

• Saturn | Was at opposition last week, but still glows bright in the lower E-SE skies in late twilight

• Further Reading and Resources

• Sky&Telescope
• SpaceWeather.com
• StarDate.org
• For the Southern hemisphere: SpaceInfo.com.au
• Constellations of the Southern Hemisphere : astronomyonline.org
• Royal Astronomical Society of New Zealand : rasnz.org.nz
• AstronomyNow
• HeavensAbove

The post Habitable Exoplanets & Diabetes | SciByte 92 first appeared on Jupiter Broadcasting.

We take a look at a planet orbiting another star that could harbor water, a fungus that chows down on polyurethane, turning plants into solar cells, science of massage, tracking snow, and as always take a peek back into history and up in the sky this week.

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