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2015/10/26

Universe Today - 10 new stories for 2015/10/27



 

10 new stories for 2015/10/27


Astronomy Cast Ep. 390: Occam's Razor and the Problem with Probabilities

 

I'm not saying it's aliens, but it's aliens. Actually, it's almost certainly not aliens, or a wormhole, or a multiverse. When scientists discover something unusual, they make guesses about what's happening. But Occam's Razor encourages us to consider the probabilities of different events before making any concrete predictions.

(...)
Read the rest of Astronomy Cast Ep. 390: Occam’s Razor and the Problem with Probabilities (46 words)


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NASA's Space Launch System Passes Critical Design Review, Drops Saturn V Color Motif

NASA's Space Launch System (SLS) blasts off from launch pad 39B at the Kennedy Space Center in this artist rendering showing a view of the liftoff of the Block 1 70-metric-ton (77-ton) crew vehicle configuration.   Credit: NASA/MSFC

NASA's Space Launch System (SLS) blasts off from launch pad 39B at the Kennedy Space Center in this artist rendering showing a view of the liftoff of the Block 1 70-metric-ton (77-ton) crew vehicle configuration. Credit: NASA/MSFC
Story/imagery updated

The SLS, America's first human-rated heavy lift rocket intended to carry astronauts to deep space destinations since NASA's Apollo moon landing era Saturn V, has passed a key design milestone known as the critical design review (CDR) thereby clearing the path to full scale fabrication.

NASA also confirmed they have dropped the Saturn V white color motif of the mammoth rocket in favor of burnt orange to reflect the natural color of the SLS boosters first stage cryogenic core. The agency also decided to add stripes to the huge solid rocket boosters. (...)
Read the rest of NASA's Space Launch System Passes Critical Design Review, Drops Saturn V Color Motif (1,516 words)


© Ken Kremer for Universe Today, 2015. | Permalink | 4 comments |
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How to See the Spooktacular Halloween Flyby of Asteroid 2015 TB145

Map showing the path of near-Earth asteroid 2015 TB145 beginning at 6:00 UT on Oct. 31 hourly through 20:00 Universal Time (1 a.m. - 3 p.m. CDT). Closest approach of 300,000 miles (480,000 km) occurs at 17:05 UT or during afternoon hours for observers in the Americas. The path is only approximate as the asteroid's orbit continues to be refined. Credit: Chris Marriott's SkyMap

Map showing the path of near-Earth asteroid 2015 TB145 beginning at 6:00 Universal Time on Oct. 31 hourly through 20:00 UT (1 a.m. – 3 p.m. CDT). Closest approach of 300,000 miles (480,000 km) occurs at 17:05 UT or during afternoon hours for observers in the Americas. The path is only approximate as the asteroid’s orbit continues to be refined. Credit: Chris Marriott’s SkyMap

Trick or treat! I think we’re definitely in for a treat.  2015 TB145  will fly past Earth at a safe distance slightly farther than the moon’s orbit on Oct. 31 at 12:05 p.m. CDT (17:05 UT). Estimated at 1,300 feet (400-meters) across, this Great Pumpkin of an asteroid will be big enough and close enough to show in small telescopes.

Do I hear the doorbell ringing already?
(...)
Read the rest of How to See the Spooktacular Halloween Flyby of Asteroid 2015 TB145 (1,425 words)


© Bob King for Universe Today, 2015. | Permalink | 5 comments |
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Carnival of Space #428

Carnival of Space. Image by Jason Major.

Carnival of Space. Image by Jason Major.

This week’s Carnival of Space is hosted by Brian Wang at his Next Big Future blog.

Click here to read Carnival of Space #428
(...)
Read the rest of Carnival of Space #428 (89 words)


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Monster Cat 5 Hurricane Patricia Strongest Ever Recorded Menaces Millions in Mexico; Seen from ISS

"Hurricane #Patricia approaches #Mexico. It’s massive. Be careful" in this image taken by NASA astronaut Scott Kelly aboard the ISS on Oct. 23, 2015. Credit: NASA/Scott Kelly
More images and videos below

Hurricane Patricia, the strongest storm in recorded history with winds exceeding 190 mph (305 km/h) is right now menacing millions in Mexico after suddenly intensifying with little warning over the past day, threatening widespread catastrophic destruction as it barrels towards frightened residents along the nations Pacific coast and makes landfall this evening, Friday, Oct. 23.

NASA astronaut Scott Kelly captured striking photos, above and below, of Hurricane Patricia this afternoon from aboard the International Space Station (ISS).

Other NASA and NOAA weather satellites are actively monitoring and measuring the strongest storm on the planet right now.(...)
Read the rest of Monster Cat 5 Hurricane Patricia Strongest Ever Recorded Menaces Millions in Mexico; Seen from ISS (729 words)


© Ken Kremer for Universe Today, 2015. | Permalink | 5 comments |
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Weekly Space Hangout – Oct. 23, 2015: Dr. Matthew Golombek

 

Host: Fraser Cain (@fcain)

Special Guest: Dr. Matthew Golombek, JPL Project Scientist for MER, and working on the NASA’s InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) Discovery Program mission.

Guests:

Morgan Rehnberg (cosmicchatter.org / @MorganRehnberg )
Kimberly Cartier (@AstroKimCartier )
Nicole Gugliucci (cosmoquest.org / @noisyastronomer)
Paul Sutter (pmsutter.com / @PaulMattSutter)
Ramin Skibba (raminskibba.net / @raminskibba)
(...)
Read the rest of Weekly Space Hangout – Oct. 23, 2015: Dr. Matthew Golombek (158 words)


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Seeing Starspots: The Curious Case of XX Trianguli

Image credit:

A screenshot of the bizarre surface of XX Tri Image credit: The Leibniz Institute for Astrophysics Potsdam (AIP).

Ever wonder what happens on the surface of other stars?

An amazing animation was released this week by astronomers at the Leibniz Institute for Astrophysics (AIP) in Potsam Germany, showing massive sunspot activity on the variable star XX Trianguli (HD 12545). (...)
Read the rest of Seeing Starspots: The Curious Case of XX Trianguli (786 words)


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NASA's OSIRIS-REx Asteroid Sampling Probe Completes Instrument Install/Assembly, Enters 'Test Drive' Phase

The high gain antenna and solar arrays were installed on the OSIRIS-REx spacecraft prior to it moving to environmental testing.  Credits: Lockheed Martin Corporation

The high gain antenna and solar arrays were installed on the OSIRIS-REx spacecraft prior to it moving to environmental testing. Credits: Lockheed Martin Corporation

OSIRIS-Rex, the first American spacecraft ever aimed at snatching pristine samples from the surface of an asteroid and returning them to Earth for exquisite analysis by researchers world-wide with the most advanced science instruments has successfully completed its assembly phase and moved into the "test drive" phase – just ten months before blastoff, following installation of all its science instruments at Lockheed Martin Space Systems facilities, near Denver, Colorado.

The launch window for OSIRIS-REx opens next fall on September 3, 2016 on a seven-year journey to asteroid Bennu and back. Bennu is a (...)
Read the rest of NASA's OSIRIS-REx Asteroid Sampling Probe Completes Instrument Install/Assembly, Enters 'Test Drive' Phase (1,036 words)


© Ken Kremer for Universe Today, 2015. | Permalink | 5 comments |
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Can Lunar Earthshine Reveal Ashen Light on Venus?

Image credit

Venus shines through the lunar valleys along the Moon’s limb. Image credit: David Dunham (screen cap of the video below).

A recent celestial event provided a fascinating look at a long-standing astronomical mystery.

Is the 'ashen light of Venus' a real phenomena or an illusion?(...)
Read the rest of Can Lunar Earthshine Reveal Ashen Light on Venus? (961 words)


© David Dickinson for Universe Today, 2015. | Permalink | 2 comments |
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Scientists Want ExoMars Rover to Land at Oxia Planum

Possible future Mars landing site in Oxia Planum. Credit: NASA/JPL/University of Arizona.

Possible future Mars landing site in Oxia Planum. Credit: NASA/JPL/University of Arizona.

The joint ESA and Russian ExoMars rover's top priority is to search the Martian surface for signs of life, past or present, and scientists think they know just the spot where – if life ever existed or exists on Mars – it might be found. Today the ExoMars team announced that the equatorial region named Oxia Planum has been recommended as the primary candidate for the landing site.

"Our preliminary analysis shows that Oxia Planum appears to satisfy the strict engineering constraints while also offering some very interesting opportunities to study, in situ, places where biosignatures might best be preserved," said Jorge Vago, ESA's project scientist.
(...)
Read the rest of Scientists Want ExoMars Rover to Land at Oxia Planum (455 words)


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