Dennis Tito – Jupiter Broadcasting https://www.jupiterbroadcasting.com Open Source Entertainment, on Demand. Mon, 22 Feb 2016 02:46:55 +0000 en-US hourly 1 https://wordpress.org/?v=5.5.3 https://original.jupiterbroadcasting.net/wp-content/uploads/2019/04/cropped-favicon-32x32.png Dennis Tito – Jupiter Broadcasting https://www.jupiterbroadcasting.com 32 32 HIV & SpaceX Troubles | SciByte 84 https://original.jupiterbroadcasting.net/33016/hiv-spacex-troubles-scibyte-84/ Tue, 05 Mar 2013 22:17:22 +0000 https://original.jupiterbroadcasting.net/?p=33016 We look at a HIV-infected infant that is "Functionally Cured," a really old star, one big Antarctic meteorite, an update on a private Mars mission and more!

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We take a look at a HIV-infected infant that is \”Functionally Cured,\” a really old star, one big Antarctic meteorite, renaming a NASA center, an update on a private Mars mission and the Dragon space station supply mission, Curiosity news, and as always take a peek back into history and up in the sky this week.

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Show Notes:

\”Functional Cure\” in an HIV-Infected Infant

  • A team of researchers from Johns Hopkins Children\’s Center has described the first case of a so-called \”functional cure\” in an HIV-infected infant
  • The infant described in the report underwent remission of HIV infection after receiving antiretroviral therapy (ART) within 30 hours of birth
  • Natural Viral Suppression
  • Natural viral suppression without treatment is an exceedingly rare phenomenon observed in less than half a percent of HIV-infected adults
  • HIV experts have long sought a way to help all HIV patients achieve elite-controller status
  • \”Elite controllers,\” whose immune systems are able to rein in viral replication and keep the virus at clinically undetectable levels
  • Functionally Cured
  • \”Functionally cured,\” a condition that occurs when a patient achieves and maintains long-term viral remission without lifelong treatment and standard clinical tests fail to detect HIV replication in the blood
  • A functional cure occurs when viral presence is so minimal, it remains undetectable by standard clinical tests, yet discernible by ultrasensitive methods
  • Sterilizing Cure
  • A sterilizing cure-a complete eradication of all viral traces from the body
  • A single case of sterilizing cure has been reported so far in an HIV-positive man treated with a bone marrow transplant for leukemia.
  • The bone marrow cells came from a donor with a rare genetic mutation of the white blood cells that renders some people resistant to HIV
  • Such a complex treatment approach, however, HIV experts agree, is neither feasible nor practical for the 33 million people worldwide infected with HIV
  • Medical Details
  • The child described was born to an HIV-infected mother and received combination antiretroviral treatment beginning 30 hours after birth.
  • A series of tests showed progressively diminishing viral presence in the infant\’s blood, until it reached undetectable levels 29 days after birth
  • The infant remained on antivirals until 18 months of age, at which point the child was lost to follow-up for a while
  • Ten months after discontinuation of treatment, the child underwent repeated standard blood tests, none of which detected HIV presence in the blood
  • Test for HIV-specific antibodies-the standard clinical indicator of HIV infection-also remained negative
  • Antiviral Treatment
  • Investigators say the prompt administration of antiviral treatment likely led to this infant\’s cure by halting the formation of hard-to-treat viral reservoirs
  • Prompt antiviral therapy in newborns that begins within days of exposure may help infants clear the virus and achieve long-term remission without lifelong treatment by preventing such viral hideouts from forming in the first place
  • Dormant cells are responsible for re-igniting the infection in most HIV patients within weeks of stopping therapy
  • Researchers say they believe this is precisely what happened in the child described in the report
  • What This Means
  • Currently, high-risk newborns-those born to mothers with poorly controlled infections or whose mothers\’ HIV status is discovered around the time of delivery-receive a combination of antivirals at prophylactic doses to prevent infection for six weeks and start therapeutic doses if and once infection is diagnosed
  • This particular case may change the current practice because it highlights the curative potential of very early ART
  • Investigators caution they don\’t have enough data to recommend change right now to the current practice of treating high-risk infants
  • This infant\’s case provides the rationale to start proof-of-principle studies in all high-risk newborns
  • The next step is to find out if this is a highly unusual response to very early antiretroviral therapy or something we can actually replicate in other high-risk newborns
  • Researchers say preventing mother-to-child transmission remains the primary goal as they already have proven strategies that can prevent 98 percent of newborn infections by identifying and treating HIV-positive pregnant women
  • Multimedia
  • Image Scanning electromicrograph of an HIV-infected T cell. (Credit: NIAID) | ScienceDaily.com
  • Further Reading / In the News
  • Researchers describe first \’functional HIV cure\’ in an infant | MedicalXpress
  • Synthesized compound flushes out latent HIV | MedicalXpress
  • Researchers Describe First \’Functional HIV Cure\’ in an Infant | ScienceDaily.com

— NEWS BYTE —

A Star That’s Almost as Old as the Universe

  • Results from a new study show that a metal-poor star located merely 190 light-years from the Sun is 14.46+-0.80 billion years old, which implies that the star is nearly as old as the Universe
  • Such metal-poor stars are important to astronomers because they set an independent lower limit for the age of the Universe and can be used to corroborate age estimates inferred by other means
  • Amount of Metal vs Age of Star
  • Metal-poor stars can be used to constrain the age of the Universe because metal-content is typically a proxy for age
  • Heavier metals are generally formed in supernova explosions, which pollute the surrounding interstellar medium.
  • Stars subsequently born from that medium are more enriched with metals than their predecessors with each successive generation becoming increasingly enriched
  • The reliability of the age determined is likewise contingent on accurately determining the sample’s metal content, and is likewise contingent on the availability of a reliable distance
  • Analyses of globular clusters and the Hubble constant yielded vastly different ages, by billions of years, for the Universe, the discrepant ages stemmed partly from uncertainties in the cosmic distance scale
  • HD 140283
  • HD 140283 exhibits less than 1% the iron content of the Sun, which provides an indication of its sizable age.
  • Based on the microwave background and the Hubble constant, it must have formed soon after the big bang
  • This star had been used previously to constrain the age of the Universe, but uncertainties tied to its estimated distance (at that time) made the age determination somewhat imprecise
  • Scientists were recently also to obtain a new and improved distance for HD 140283 using the Hubble Space Telescope (HST), namely via the trigonometric parallax approach
  • From that data the distance uncertainty for HD 140283 was significantly reduced by comparison to existing estimates, thus resulting in a more precise age estimate for the star
  • The age of HD 140283 does not conflict with the age of the Universe, 13.77 ± 0.06 billion years, within the errors
  • This study reaffirms that there are old stars roaming the solar neighborhood which can be used to constrain the age of the Universe
  • Multimedia
  • Image A new age estimate for the star HD 140283 implies that it was among the first few generations of stars created in the Universe | NASA, ESA, A. Felid (STScI) | UniverseToday.com
  • Further Reading / In the News
  • Nearby Ancient Star is Almost as Old as the Universe | UniverseToday.com

— TWO-BYTE NEWS —

Antarctic Meteorite Season Findings

Voting to rename NASA Dryden after Neil Armstrong

— SPACECRAFT UPDATE—

SpaceX – Dragon Space Station Resupply Mission Glitch

  • The Glitch
  • The problem cropped up immediately following Dragon\’s separation from the rocket upper stage, nine minutes into the flight.
  • Three of the four sets of thrusters on the company\’s unmanned Dragon capsule did not immediately kick in, delaying the release of the solar panels.
  • The problem may have been caused by a stuck valve or a line blockage
  • Dragon\’s twin solar wings swung open two hours later than planned, an hour later, the Dragon was raised with the thrusters to a safe altitude.
  • Working Towards the Solution
  • SpaceX worked to bring up the idled thrusters and keep the capsule on track
  • The Dragon is equipped with 18 thrusters, divided into four sets, and can maneuver adequately even with some unavailable.
  • The capsule is designed to return to Earth with just two good sets of thrusters and, in \”a super worst case situation,\” conceivably just one although it would be \”a bit of a wobbly trip.\”
  • If SpaceX and NASA had determined that more time was needed to gain confidence that Dragon could safely carry out an attempt the Dragon could have stayed in orbit for several additional months if needed
  • By late Saturday afternoon sufficient recovery work had been accomplished to warrant NASA, ISS and SpaceX managers to give the go-ahead for the Dragon to rendezvous with the station early Sunday morning, March 3.
  • Capture
  • The capsule was captured 5:31 am EST (1031 GMT) on Sunday, March 3
  • More than 1 ton of space station supplies aboard this Dragon, which included some much-needed equipment for air purifiers
  • It is scheduled to spend more than three weeks at the space station before being cut loose by the crew
  • Despite the one-day docking delay, the Dragon unberthing and parachute assisted return to Earth will still be the same day as originally planned on March 25.
  • History
  • This has been the first serious trouble to strike a Dragon in orbit, none of the four previous unmanned flights had any thruster issues
  • On the previous flight in October, one of nine first-stage engines on the Falcon rocket shut down too soon, on this flight it performed \”really perfectly\” and that the thruster problem was isolated to the Dragon
  • Future Re-Supply Missions
  • SpaceX plans to launch its next Dragon to the station in late fall.
  • SpaceX says it has 50 launches planned-both NASA missions and commercial flights-totaling about $4 billion in contracts
  • NASA also has a $1.9 billion resupply contract for the station with Orbital Sciences Corporation, which will launch the first test flight of its Antares rocket from a base in Virginia in the coming weeks
  • Multimedia
  • YouTube SpaceX Dragon Carrying NASA Cargo Arrives at International Space Station | NASATelevision
  • Further Reading / In the News
  • SpaceX\’s capsule arrives at ISS | phys.org
  • SpaceX\’s capsule nears ISS for rendezvous on Sunday (Update) | Phys.org
  • SpaceX Dragon Recovers from Frightening Propulsion System Failure – Sunday Docking Set | UniverseToday.com
  • SpaceX rocket launched, but problem with thrusters (Update 3)
  • SpaceX working to fix Dragon capsule\’s thrusters (Update 2) | phys.org
  • SpaceX company fixes Dragon capsule problem | phys.org
  • Dragon Spacecraft Glitch Was \’Frightening,\’ SpaceX Chief Elon Musk Says | Space.com

— UPDATES—

Russian Meteorite Chunk Found

Dennis Tito\’s Honeymoon Suite to Mars

— CURIOSITY UPDATE —

  • The \’Glitch\’
  • The spacecraft remained in communications at all scheduled communication windows on Wednesday, but it did not send recorded data, only current status information.
  • Status information revealed that the computer had not switched to the usual daily \”sleep\” mode when planned
  • On Thurs, Feb 28, the ground team for NASA\’s Mars rover Curiosity switched the rover to a redundant onboard computer in response to a memory issue on the computer that had been active
  • Flash Memory
  • The condition is related to a glitch in flash memory linked to the other, now-inactive, computer.
  • Diagnostic work in a testing simulation at JPL indicates the situation involved corrupted memory at an A-side memory location used for addressing memory files
  • It appears to have caused the computer to get stuck in an endless loop.
  • Protections and History
  • Curiosity has protections against such high-energy disruptions, but the problem was compounded by what appears to have been the location of the strike-in the directory, or \”table of contents,\” of the computer\’s memory
  • Similar problems were caused by high-energy solar and cosmic ray strikes on other space missions
  • Previous rovers experienced many so-called \”anomalies\” during the early part of their treks
  • Like many spacecraft Curiosity carries a pair of redundant main computers in order to have a backup available if one fails
  • Each of the computers, A-side and B-side, also has other redundant subsystems linked to just that computer
  • Operations
  • Curiosity is now operating on its B-side, as it did during part of the flight from Earth to Mars. It operated on its A-side from before the August 2012 landing through Wednesday.
  • Although scientific investigations by the rover were suspended the team hopes that Curiosity would resume science work in about a week.
  • While resuming operations on the B-side, they are also working to determine the best way to restore the A-side as a viable backup
  • What Happens Next
  • Even if the rover is fully operational again in a week, the amount of science it can perform is limited.
  • The sun comes between Mars and the Earth in early April, partially blocking the path for radio commands for an entire month
  • The Curiosity team had planned to send back science data from Mars during that period-called \”solar conjunction,\” but had decided not to send up any commands.
  • Multimedia
  • Image Galleries at JPL and Curiosity Mulimedia
  • Image This artist concept features NASA\’s Mars Science Laboratory Curiosity rover | mars.jpl.NASA.gov
  • Social Media
  • Curiosity Rover @MarsCuriosity
  • Further Reading / In the News
  • Curiosity Rover Has Computer Problems | UniverseToday.com
  • Mars Rover Curiosity Has First Big Malfunction news.NationalGeographic.com
  • Mars Science Laboratory: Computer Swap on Curiosity Rover | mars.jpl.NASA.gov
  • Computer Swap on Curiosity Rover – NASA Jet Propulsion Laboratory | jpl.nasa.gov

SCIENCE CALENDAR

Looking back

  • March 10, 1797: 216 years ago : Thomas Jefferson on paleontology : Thomas Jefferson (1743-1826) presented a paper on the megalonyx to the American Philosophical Society. It was published as \”A Memoir on the Discovery of Certain Bones of a Quadruped of the Clawed Kind in the Western Parts of Virginia,\” Transactions of American Philosophical Society 4:255-256, along with an account by Caspar Wistar (1761-1818). This is arguably the first American publication in paleontology, but the only paleontology paper written by Jefferson. In 1822, this huge extinct sloth was named Megalonyx jeffersoni by a French naturalist. (Megalonyx Gr. large claw). It was a bear-sized ground sloth, over 2 meters tall, widespread in North America during the last Ice Age

Looking up this week

  • Keep an eye out for …

  • Mercury, Venus, Mars | Now hidden in the Sun\’s glare

  • Jupiter | High in the S-SW after sunset, moving to the W/SW later in the evening

  • Saturn | ~10-11 pm | Rises in the E-SE moving to high in the Southern skies by dawn

  • Where to Find Comet PanSTARRS

  • 10* is about the width of your fist held at arm\’s length.
  • This diagram is drawn for a viewer near 40* north latitude (Denver, New York, Madrid) 30 minutes after sunset.
  • If you\’re south of there, the comet will be a little higher above your horizon early in the month than shown here.
  • North of 40°, it will be a little lower early in March than shown here.
  • SkyandTelescope.com/panstarrs

Daylight Savings Time

The post HIV & SpaceX Troubles | SciByte 84 first appeared on Jupiter Broadcasting.

]]> Tiny Exo-planet & Medical Glue | SciByte 83 https://original.jupiterbroadcasting.net/32512/tiny-exo-planet-medical-glue-scibyte-83/ Tue, 26 Feb 2013 22:14:14 +0000 https://original.jupiterbroadcasting.net/?p=32512 We take a look at a tiny exoplanet, new medical glue, dogs, private Mars mission, updates on bionic eyes and the Russian meteorite.

The post Tiny Exo-planet & Medical Glue | SciByte 83 first appeared on Jupiter Broadcasting.

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We take a look at a tiny exoplanet, new medical glue, dogs, private Mars mission, updates on bionic eyes and the Russian meteorite, Curiosity news, and as always take a peek back into history and up in the sky this week.

Direct Download:

MP3 Audio | OGG Audio | Video | Torrent | YouTube

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Show Notes:

Tiny Exo-planet

  • Scientists have discovered a new planet orbiting a Sun-like star, and the exoplanet is the smallest yet found in data from the Kepler mission
  • This discovery came from a collaboration between Kepler scientists and a consortium of international researchers who employ asteroseismology
  • Asteroseismology\”
  • Sound waves travel into the star and bring information back up to the surface, these waves cause oscillations that Kepler observes as a rapid flickering of the star’s brightness
  • Asteroseismology is when scientists measure those oscillations in the star’s brightness caused by continuous star-quakes, and turn those tiny variations in the star’s light into sounds
  • It is similar to how geologists use seismic waves generated by earthquakes to probe the interior structure of Earth
  • Barely discernible, high-frequency oscillations in the brightness of small stars are the most difficult to measure, the bigger the star, the lower the frequency, or ‘pitch’ of its song
  • Kepler-37b
  • The measurements made by the astroseismologists allowed the Kepler research team to more accurately measure the tiny Kepler-37b
  • Kepler-37b, is smaller than Mercury, but slightly larger than Earth’s Moon
  • Orbits every 13 days at less than one-third Mercury’s distance from the Sun
  • Very likely a rocky planet with no atmosphere or water, similar to Mercury
  • Estimated surface temperature of this smoldering planet, at more than 800 degrees Fahrenheit (700 degrees Kelvin, hot enough to melt the zinc in a penny
  • The rest of the Kepler-37 system
  • Kepler-37 has a radius just three-quarters of the Sun, and is about 210 light-years from Earth.
  • The size is known to 3 percent accuracy, which translates to exceptional accuracy in the planet’s size.
  • Measurements also revealed two other planets in the same planetary system: one slightly smaller than Earth and one twice as large
  • All three planets orbit the star at less than the distance Mercury is to the Sun Kepler-37c and Kepler-37d, orbit every 21 days and 40 days, respectively
  • What this means
  • This discovery took a long time to verify, as the signature of this very small exoplanet was hard to confirm
  • Uncovering a planet smaller than any in our solar system orbiting one of the few stars that is both bright and quiet, where signal detection was possible
  • “The detection of such a small planet shows for the first time that stellar systems host planets much smaller as well as much larger than anything we see in our own Solar System.” [Published paper in Nature]
  • Multimedia
  • Image | NASA’s Kepler mission has discovered a new planetary system that is home to the smallest planet yet found | Credit: NASA/Ames/JPL-Caltech
  • Image | Where in the sky Kepler is looking | Credit: Carter Roberts / Eastbay Astronomical Society
  • Further Reading / In the News
  • Tiny exoplanet smaller than Mercury: Smallest planet yet found outside solar system (Update) | phys.org
  • Smallest Exoplanet Yet Discovered by \’Listening\’ to a Sun-like Star
  • Moon-Size Alien Planet Is the Smallest Exoplanet | Space.com
  • How Does Tiny Kepler-37b Measure Up? | news.discovery.com

— NEWS BYTE —

Medical \”Super Glue\” for Wet Surfaces

  • The Problem\”
  • Not even Super Glue will stick in a wet environment because a layer of water forms that keeps the two surfaces from bonding
  • Mussels somehow elbow the water aside and bind themselves to rocks anyway by secreting liquid proteins that harden into a solid, water-resistant glue
  • A Possible New Solution
  • One researcher now says he has used the mollusk’s tricks to develop medical applications
  • This biocompatible glue that could one day seal fetal membranes, allowing prenatal surgeons to repair birth defects without triggering dangerous premature labor
  • The research team has now created a synthetic, thread-like polymer called polyethylene glycol that mimics the mussel protein
  • Basis of a Mussels Sticking Ability
  • Parts of the proteins that face out toward the hard surface
  • This enables liquid holdfast proteins to solidify rapidly and stick flawlessly to wet and salty surfaces
  • Initial Testing
  • To see if the compound worked in live animals, a veterinary surgeon made a 2.5-centimeter incision in the carotid artery of a dog and placed four stitches along the length of that incision to hold it in place
  • With stitches alone were used, the incision bled when the surgeon pressed it.
  • After just 20 seconds after the mussel-based glue was applied, the artery was sealed and didn’t bleed.
  • Recently the team began testing its glue on fetal membranes
  • Possible Prenatal Use
  • For the past few decades, surgeons have begun surgically repairing birth defects like spina bifida while a fetus is still in utero
  • The process is risky because the surgery risks rupturing the fetal membrane prematurely, sending the mother into premature labor.
  • There are no good adhesives on the market for surgeons to repair such fetal-membrane tears
  • In recent, unpublished experiments in rabbits, the team has found that after a veterinary surgeon poked a 3.5-mm hole in the animal’s fetal membrane, the new, mussel-inspired glue readily sealed up the puncture
  • Without the glue, only 40% of the fetal rabbits survived the surgery, but with the glue, 60% did.
  • Fetal surgeons are now working with the research team to test whether the glue can help reseal the tissue surrounding the spinal cord to repair a serious birth defect known spina bifida in rabbits
  • Recent Alterations
  • In another recent result researchers chemically altered the polyethylene glycol polymer so that the glue would shrink when it hardened
  • This could counter tissue swelling during surgery
  • Multimedia
  • Mytilus mussel withb yssus showing, on a rock atOcean Beach, San Francisco,California,USA | Brocken Inaglory
  • Adding a glue modeled on the biochemistry of mussel attachment quickly sealed a punctured fetal membrane in rabbits, protecting the fetal bunnies inside | news.ScienceMag.org | Credit: Martin Ehrbar from University Hospital Zurich
  • Further Reading / In the News
  • Mussel Glue Could Help Repair Birth Defects – ScienceNOW | News.ScienceMag.org
  • Translation of Mussel Adhesion to Beneficial New Concepts and Materials | AAAS.Confex.com

Food Ninja Dogs

  • A new study suggests dogs might understand people even better than we thought
  • The research shows that domestic dogs, when told not to snatch a piece of food, are more likely to disobey the command in a dark room than in a lit room
  • Dogs have specialized skills in reading human communication, specific in dogs
  • The Test
  • A research team recruited 84 dogs, all of which were more than a year old, motivated by food, and comfortable with both strangers and dark rooms
  • The team then set up experiments in which a person commanded a dog not to take a piece of food on the floor
  • They then repeated the commands in a room with different lighting scenarios ranging from fully lit to fully dark
  • What the team found was that the dogs were four times as likely to steal the food-and steal it more quickly—when the room was dark
  • It was thought that whether the dogs saw the human would would affect the results, but weather the dogs saw the human or not didn\’t affect the behavior
  • The dog\’s behavior depended on whether the food was in the light or not, suggesting that the dog made its decision based on whether the human could see them approaching the food
  • Results and Future
  • The study of dog cognition suddenly began about 15 years ago
  • Many of the new dog studies are variations on research done with chimpanzees, bonobos, and even young children
  • Dogs are better at reading human cues than even our closest mammalian relatives
  • Researchers are now interested in whether the dog has a theory of mind, \”an understanding that others have different perspective, knowledge, feelings than we do\”
  • While research reveals more and more insight into the minds we still don\’t know just how smart they are
  • Multimedia
  • YouTube | Siberian Husky – Kiba The Pizza Thief | SeberHusky
  • Further Reading / In the News
  • Confirmed: Dogs Sneak Food When People Aren\’t Looking | news.NationalGeographic.com

— TWO-BYTE NEWS —

Dennis Tito, Space Tourist, Now Mars Mission Planner

  • ”The Plan\”
  • Dennis Tito, the first-ever space tourist, is planning send a human mission to Mars in January 2018 on a round-trip journey lasting 501 days
  • Reportedly, Tito has created a new nonprofit company called the Inspiration Mars Foundation to facilitate the mission
  • Presentation
  • Tito, along with several other notable people from the space community will provide more information in a press conference set for Wednesday, February 27th
  • The paper Tito plans to present at the IEEE Aerospace Conference in March, will discuss a crewed free-return Mars mission that would fly by Mars, not going into orbit or landing
  • Initial Mission Breakdown
  • The 501-day mission would launch in January 2018, “using a modified SpaceX Dragon spacecraft launched on a Falcon Heavy rocket,”
  • Existing environmental control and life support system (ECLSS) technologies would allow such a spacecraft to support two people for the mission,
  • The paper outlines how NASA would also have a role in this mission in terms of supporting key life support and thermal protection systems, even though this is a private-sector effort
  • Crew comfort would be limited to survival needs only, sponge baths are acceptable, with no need for showers
  • Of Note
  • No estimates of what such a mission would cost are included in the paper, but it does say it would be financed privately
  • The paper adds that if they miss this favorable 2018 opportunity, the next chance to take advantage of this lower energy trajectory would be in 2031.
  • Multimedia
  • Image Dennis Tito, the first private citizen to visit the International Space Station | NASA via Wikipedia
  • Further Reading / In the News
  • Dennis Tito Wants to Send Human Mission to Mars in 2018 | UniverseToday.com

— Updates —

Another Step for Bionic Eyes

  • Clinical Trials
  • As part of the first module of second human clinical trials in Germany research found that, during the course of a three to nine month observation period, functional vision was restored in the majority of nine patients implanted with a subretinal microchip
  • Patients were implanted with Retina Implant AG\’s subretinal wireless 3×3 mm2, 1500 pixel Alpha IMS microchip and are able to adjust the level of stimulation received to view objects at varied distances
  • Test Data
  • Visual acuity for two of the nine patients surpassed the visual resolution of patients from the Company\’s first human clinical trial
  • Of the nine patients observed in the study, three patients were able to read letters spontaneously during observation in and outside the laboratory patients
  • They also reported the ability to recognize faces, distinguish objects such as telephones and read signs on doors
  • Results
  • Results from the first trial concluded that the implantation of Retina Implant\’s microchip was successful in restoring useful vision in patients previously blind due to retinitis pigmentosa
  • second clinical trial with a wireless device that allows patients to use the implant outdoors and at home and has since expanded into the multicentre phase
  • Multimedia
  • YouTube | Scientists help blind man see again | Channel4News
  • YouTube | Blind man given bionic eye describes seeing again | Frank Swain
  • YouTube | Animation of Retina Implant | jonmillsswns
  • Further Reading / In the News
  • Retina Implant AG
  • Retinal implants with wireless microchip restore functional vision in retinitis pigmentosa patients, research finds | MedicalXpress.com

Russian Meteorite Orbital Calculations

  • Initial Calculations
  • Just a week after a huge fireball streaked across the skies of the Chelyabinsk region of Russia, astronomers published a paper that reconstructs the orbit and determines the origins of the space rock
  • Scientists at the University of Antioquia in Colombia used a resource not always available in meteorite falls: the numerous dashboard and security cameras that captured the huge fireball
  • Using the trajectories shown in videos posted on YouTube, the researchers were able to calculate the trajectory of the meteorite as it fell to Earth and use it to reconstruct the orbit in space of the meteoroid before its violent encounter with our planet.
  • Although the results are preliminary and they are already working on getting more precise results, through their calculations, the team determined the rock originated from the Apollo class of asteroids
  • In addition to the video data they Google Earth to reconstruct the path of the rock as it entered the atmosphere and showed that it matched an image of the trajectory taken by the geostationary Meteosat-9 weather satellite.
  • Even with the plethora of video\’s due to variations in time and date stamps on several of the videos, some which differed by several minutes, they decided to choose two videos from different locations that seemed to be the most reliable
  • From triangulation, they were able to determine height, speed and position of the meteorite as it fell to Earth
  • Multimedia
  • YouTube | Preliminary Orbit of the Chelyabinsk Meteoroid.mp4 | Jorge Zuluaga
  • YouTube | The video from Revolutionary Square in Chelyabinsk
  • YouTube | Video recorded in Korkino
  • YouTube Meteor Over Russia seen by Meteosat-9 [HD] | TheMarsUnderground
  • Further Reading / In the News
  • Astronomers Calculate Orbit and Origins of Russian Fireball | universetoday.com

— SPACECRAFT UPDATE / VIEWER FEEDBACK —

Dragon resupply

  • On March 1 at 10:10 AM EST, the Dragon CRS-2 is slated to blast off on a Dragon cargo vehicle on what will be only the 2nd commercial resupply mission ever to the ISS
  • The mission will carrying about 1,200 pounds of vital supplies and science experiments for the six man international crew living aboard the million pound orbiting outpost
  • The Dragon will remain docked to the ISS for about three weeks while the crew unloads all manner of supplies including food, water, clothing, spare parts and gear and new science experiments
  • The astronauts will replace all that cargo load with numerous critical experiment samples they have stored during ongoing research activities, as well as no longer needed equipment and trash totaling about 2300 pounds, for the return trip to Earth and a Pacific Ocean splashdown set for March 25
  • ‏@Tubsta pointed this story out on Twitter as well
  • Further Reading / In the News
  • Commercial Resupply Launch | NASA.gov

— CURIOSITY UPDATE —

SCIENCE CALENDAR

Remembering David McKay [September 25, 1936 – February 20, 2013]

  • As a graduate student, McKay was in the audience when President John F. Kennedy gave his legendary \”We choose to go to the moon\” speech
  • McKay joined NASA in June of 1965 and participated extensively in astronaut training leading up to 1969\’s historic Apollo 11 mission
  • He also served as chief scientist for astrobiology at NASA\’s Johnson Space Center in Houston
  • McKay was lead author of a 1996 paper in the journal Science that suggested ALH84001 may contain evidence of past life on Mars.
  • While the claim still spurs controversy, it also sparked a shift in perspectives that is alive and well within NASA today and prompted the establishment of the NASA Astrobiology Institute
  • McKay developed innovative new technology for both life detection and the use of lunar regolith as feedstock, radiation protection, fuel, nutrient source for microbial bioreactors and long-term lunar habitation.
  • Publications
  • David published more than 200 peer-reviewed papers on lunar samples, space resource utilization, cosmic dust, meteorites, astrobiology and Mars topics, as well as about twice that many published abstracts, and this body of work includes many contributions to our understanding of the development and evolution of the lunar regolith and space weathering processes
  • Professional Positions
  • Chief Scientist for Astrobiology and Planetary Science and Exploration, 1996 – 2013
  • Assistant for Exploration and Technology – NASA Johnson Space Center, 1994 – 96
  • Chief, Planetary Programs Office – NASA Johnson Space Center, 1991 – 94
  • Chief, Mission Science and Technology Office – NASA Johnson Space Center, 1990 – 91
  • Chief, Space Resources Utilization Office – NASA Johnson Space Center, 1987 – 90
  • Staff Scientist – NASA Johnson Space Center, 1965 – 87
  • Exploration Geophysicist, Exxon and Marine Geophysical, 1960 – 61
  • Further Reading / In the News
  • David S. McKay, Chief Scientist for Astrobiology | ares.jsc.nasa.gov
  • Pioneering Moon, Mars Scientist David McKay Dies at 76 | Space.com

Looking back

  • March 05, 1223 BC : 3236 years ago : Oldest Eclipse Record : The oldest recorded eclipse occurred, according to one plausible interpretation of a date inscribed on a clay tablet retrieved from the ancient city of Ugarit, Syria (as it is now). This date is favoured by recent authors on the subject, although alternatively 3 May 1375 BC has also been proposed as plausible. Certainly by the 8th century BC, the Babylonians were keeping a systematic record of solar eclipses, and possibly by this time they may have been able to apply numerological rules to make fairly accurate predictions of the occurrence of solar eclipses. The first total solar eclipse reliably recorded by the Chinese occurred on 4 Jun 180 BC.

Looking up this week

The post Tiny Exo-planet & Medical Glue | SciByte 83 first appeared on Jupiter Broadcasting.

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