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What a Star About to Go Supernova Looks Like - 0 views

www.universetoday.com/...out-to-go-supernova-looks-like scibyte115 Supernova
shared by Mars Base on 11 Jan 14 - No Cached
  • This nebula with a giant star at its center
  • th stars had identical rings of the same size and age, which were travelling at similar speeds; both were located in similar HII regions; and they had the same brightness
  • no one can predict when a star will go supernova,
  • ...3 more annotations...
  • But astronomers are certainly hoping they’ll have the chance to watch it happen.
  • has striking similarities to a star that went supernova back in 1987, SN 1987A.
  • SN 1987A is the closest supernova to that we’ve been able to study since the invention of the telescope and it has provided scientists with good opportunities to study the physical processes of an exploding star
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SpaceShipTwo Goes Supersonic in Third Rocket-Powered Test Flight - 0 views

www.universetoday.com/...upersonic-in-third-test-flight scibyte115 PrivateSpaceTravel
shared by Mars Base on 11 Jan 14 - No Cached
  • 2014 should be the year that Virgin Galactic’s SpaceShipTwo (SS2) brings passengers on suborbital space flights
  • the company started off the year by successfully completing its third rocket-powered supersonic flight
  • after dozens of successful subsonic test flights
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  • They tested the spaceship’s Reaction Control System, the newly installed thermal protection coating on the vehicle’s tail booms, and the “feather” re-entry system.
  • the RCS will allow its pilots to maneuver the vehicle in space so that passengers will have great views of Earth, as well as aiding the positioning process for spacecraft re-entry
  • The new reflective protection coating on SS2’s inner tail boom surfaces is being evaluated to help maintain vehicle skin temperatures while the rocket motor is firing. Remove this ad
  • The WhiteKnightTwo (WK2) carrier aircraft brought SS2 to an altitude around 46,000 ft.
  • Then SS2 was released, and its rocket motor was ignited, powering the spaceship to a planned altitude of 71,000 ft.
  • SS2’s highest altitude to date, and it also reached a speed of Mach 1.4.
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China's Historic Moon Robot Duo Awaken from 1st Long Frigid Night and Resume Science Op... - 0 views

www.universetoday.com/...-and-resume-science-operations scibyte115 ChineseSpaceProgram
shared by Mars Base on 14 Jan 14 - No Cached
  • Yutu woke up
  • Saturday, Jan. 11, at 5:09 a.m. Beijing local time
  • Chang’e-3 lander was awoken on Sunday, Jan. 12, at 8:21 a.m. Beijing local time, according to a BACC statement
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  • They went to sleep to conserve energy since there is no sunlight to generate power with the solar arrays during the lunar night.
  • During the nocturnal hiatus they were kept alive by a radioisotopic heat source that kept their delicate computer and electronics subsystems warmed inside a box below the deck
  • It was maintained at a temperature of about minus 40 degrees Celsius to prevent debilitating damage
  • lunar night time environment when temperatures plunged to below minus 180 degrees Celsius, or minus 292 degrees Fahrenheit
  • Just prior to hibernating, the lander snapped the first image of the Earth taken from the Moon’s surface in some four decades
  • Yutu has already resumed roving
  • The Chang’e-3 lander should survive at least a year.
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NewsDaily: Seth MacFarlane brings his love of science to TV - 0 views

www.newsdaily.com/...ings-his-love-of-science-to-tv scibyte115 cosmos scibyte116
shared by Mars Base on 14 Jan 14 - No Cached
  • Seth MacFarlane, creator of "Family Guy"
  • is bringing
  • "Cosmos: A Spacetime Odyssey," a 13-part series that will debut March 9 on Fox. It will also air on the National Geographic Channel.
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January 15 - Today in Science History - Scientists born on January 15th, died, and events - 0 views

www.todayinsci.com/...1_15.htm scibyte115 History
shared by Mars Base on 14 Jan 14 - No Cached
  • Spacecrafts dock
  • In 1969, the first docking of two manned spacecraft took place between the Soviet Soyuz 4 and Soyuz 5.
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January 17 - Today in Science History - Scientists born on January 17th, died, and events - 0 views

todayinsci.com/1_17.htm scibyte115 History
shared by Mars Base on 14 Jan 14 - No Cached
  • In 1929, Edwin Hubble communicated the now classic paper that first showed the universe was expanding (and later provided observational evidence for the Big Bang theory).
  • Expanding universe
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Countdown to Pluto - 0 views

phys.org/...2014-01-countdown-pluto.html scibyte116 newhorizons
shared by Mars Base on 16 Jan 14 - No Cached
  • One of the fastest spacecraft ever built—NASA's New Horizons—
  • at nearly one million miles per day
  • The encounter begins next January
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  • Closest approach is scheduled for July 2015 when New Horizons flies only 10,000 km from Pluto
  • The first step, in January 2015, is an intensive campaign of photography by the Long Range Reconnaissance Imager or "LORRI."
  • This will help mission controllers pinpoint Pluto's location, which is uncertain by a few thousand kilometers
  • use the images to refine Pluto's distance from the spacecraft, and then fire the engines to make any necessary corrections
  • By late April 2015, the approaching spacecraft will be taking pictures of Pluto that surpass the best images from Hubble
  • If New Horizons flew over Earth at the same altitude, it could see individual buildings and their shapes
  • Other than a few indistinct markings seen from afar by Hubble, Pluto's landscape is totally unexplored
  • "If you drove a car around the equator of Pluto, the odometer would rack up almost 5,000 miles-as far as from Manhattan to Moscow."
  • possibility that New Horizons will discover new moons and rings as well
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Migraine Attacks Can be Prevented with High Blood Pressure Drug Candesartan - 0 views

www.scienceworldreport.com/...-pressure-drug-candesartan.htm scibyte116 migraine
shared by Mars Base on 16 Jan 14 - No Cached
  • Researchers say that the drug Candesartan may be prescribed for those who get no relief from propranolol.
  • researchers
  • have found that the drug Candesartan is as effective in combating migraines as the commonly prescribed drug propranolol for the malady.
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  • This finding is a follow up of a ten-year study from NTNU
  • Though the drug Candesartan is used by several doctors to treat migraine, this study proves the effectiveness of the drug in treating migraine
  • confirmed based on triple a blind test where the doctors, patients and even the researchers were unaware whether the patient was given a placebo or the real drug.
  • The study had 72 participants, who suffered migraine attacks atleast twice every month
  • The patients were given placebo, 16 mg of candesartan or 160 mg of propranolol for 12 weeks each and were given a break of 4 weeks without the medicines before the start of the drug and in between too.
  • more than 20 percent of those suffering with migraine attacks felt better even when they were given a placebo.
  • the blind test revealed that the candesartan works preventively for more 20-30 percent migraine patients
  • The study confirmed that 16 mg of candesartan was as effective as 160 mg of propranolol in treating migraine attacks.
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Send Your Names to an Asteroid, NASA Says - 0 views

www.scienceworldreport.com/...d-on-osiris-rex-spacecraft.htm scibyte116 Asteroid
shared by Mars Base on 18 Jan 14 - No Cached
  • NASA invited the public to submit their names that will be engraved on a microchip aboard a spacecraft that will head to the 1,760-foot-wide asteroid.
  • The spacecraft will be sent to the asteroid where it will collect about two ounces of surface material and return with it to Earth in a sample-return capsule in 2023
  • submit their names online before September 30 at 'Message to Bennu.'
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  • your name not just stays up there for 500 days but will remain in space even after the spacecraft returns the capsule to Earth.
  • Those who have submitted their names can download and print a certificate documenting their participation in the OSIRIS-REx mission
  • Participants who have registered their names and who 'follow' or 'like' the asteroid mission on Facebook and Twitter will get notifications on the status of their name in space from the time it is launched and until the samples are returned to Earth in 2013.
  • The aim of the OSIRIS-Rex mission is to address the basic questions on the composition of the early solar system.
  • Once the samples return to the Earth, the spacecraft will be placed into a long term solar orbit around the sun, along with the microchip on which the names are engraved.
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The Rock that Appeared Out of Nowhere on Mars - 0 views

www.universetoday.com/...ppeared-out-of-nowhere-on-mars scibyte116 opportunity
shared by Mars Base on 18 Jan 14 - No Cached
  • An intriguing recent mystery is a strange rock that suddenly appeared in photos from the Opportunity rover in a spot where photos taken just 12 sols earlier showed no rock
  • described the rock as “white around the outside, in the middle there’s low spot that is dark red.
  • haven’t driven over that spot.
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  • “One theory is that we somehow flicked it with a wheel,”
  • . “We had driven a meter or two away from here and somehow maybe one of the wheels managed spit it out of the ground. That’s the more likely theory.”
  • Mars Exploration Rovers, mission principal investigator Steve Squyres
  • “The other theory is that there might be a smoking hole in the ground nearby and this may be crater ejecta. But that one is less likely,”
  • Another idea suggested by others is that it may have tumbled down from a nearby rock outcrop
  • making measurements on this rock.
  • looks like a jelly donut
  • We’ve taken pictures of both the donut part and the jelly part,”
  • . “The jelly part is like nothing we’ve seen before on Mars. It’s very high in sulfur and magnesium and it has twice as much manganese as anything we’ve seen before
  • I don’t know what any of this means. We’re completely confused, everybody on the team is arguing and fighting. We’re having a wonderful time!”
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January 23 - Today in Science History - Scientists born on January 23rd, died, and events - 0 views

www.todayinsci.com/...1_23.htm scibyte116 LookingBack
shared by Mars Base on 18 Jan 14 - No Cached
  • Pluto photographed (source)   In 1930, Clyde Tombaugh photographed the planet Pluto, the only planet discovered in the twentieth century, after a systematic search instigated by the predictions of other astronomers. Tombaugh was 24 years old when he made this discovery at Lowell Observatory in Flagstaff, Ariz.
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January 26 - Today in Science History - Scientists born on January 26th, died, and events - 0 views

www.todayinsci.com/...1_26.htm scibyte116 LookingBack
shared by Mars Base on 18 Jan 14 - No Cached
  • Canadian earthquake   In 1700, an earthquake, the most intense Canada has ever seen, hit the sea floor off the British Columbia coast. Long before Europeans first landed on Vancouver Island, native legend tells of a great disaster. The sea rose in a heaving wave, and landslides buried a sleeping village. Myth was resolved with science in 2003 by government research. Earthquakes of that intensity cause tidal waves, and Japanese written history tells of a massive tsunami striking fishing villages the next day along the coast of Honshu, killing hundreds. Coupled with geological evidence of the level 9 quake, the connection was clear. Mythology and seismology came together to validate history.
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