Space
- Paintballs To Deflect The Next Asteroid
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The Earth just got a few shots across our bow, what with a giant asteroid hurtling between us and the moon, and another (fortunately much smaller) space rock exploding over Russia, causing a surprising amount of destruction. So what can we do about the s ...
Article - Robert Cooper - Feb 18 2013 - 9:29pm
- Shooting Star Brighter Than The Sun
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A shooting star brighter than the sun on the very day an asteroid flyby is predicted. A most remarkable coincidence. And to add to our amazement, the rock whizzing through the skies didn't illuminate a distant ocean or some remote desert, but rather s ...
Article - Johannes Koelman - Feb 19 2013 - 9:43am
- Water On The Moon, Where Have You Been Hiding All This Time?
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If you have seen pictures of the Moon, you see a giant ball of dust with astronaut footprints etched into the surface- but information garnered from missions such as NASA's 2009 Lunar CRater Observation and Sensing Satellite (L-CROSS) lunar-impact pr ...
Article - News Staff - Feb 19 2013 - 12:36pm
- Giant Sun Spot The Size Of 6 Earths Grows In 48 Hours
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Sunspots on the surface of the Sun happen when magnetic fields rearrange and realign, forming dark spots Over the course of the last 48 hours, scientists watched a giant sunspot form- it has grown to over six Earth diameters across but its full extent is ...
Article - News Staff - Feb 20 2013 - 4:11pm
- Some Coronal Rain On The Sun
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The Sun's eruptive events can change even more radically than the weather in Kentucky. Some eruptive events come just with a solar flare, while some provide additional ejection of solar material, a coronal mass ejection (CME). Some even involve compl ...
Article - News Staff - Feb 20 2013 - 4:30pm
- Simple Gravity Doesn't Explain Distribution Of Stars In Crowded Clusters
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Gravity works, it is a dominant force in physics, but at the very large and very small scales it holds a lot of mysteries left to be solved. Foe example, when it comes to stars in young star clusters the dynamics in these crowded environments cannot be s ...
Article - News Staff - Feb 21 2013 - 4:30am
- Exciting Possibilities In (And About) Space!
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First some exciting news about space-flight. Then I'll finish with a followup (and speculative) reflection on our recent multiple encounters with space rocks. = NASA's NIAC: New and Innovative Advance Concepts = ...
Article - David Brin - Feb 20 2013 - 7:48pm
- Mercury 's Molten Magma- 4 Billion Years Ago
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By analyzing data gathered by MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging), a NASA probe that has orbited the planet since March 2011, researchers looking at X-ray fluorescence identified two distinct compositions of rocks on ...
Article - News Staff - Feb 21 2013 - 8:01pm
- Calculating The Birth Of An Asteroid's Trail
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Unlike comets, asteroids don't have a trail- with some exceptions. Spanish researchers observed using the Gran Telescopio Canarias and discovered that something happened around July 1st, 2011 that caused a trail to appear on P/2012 F5 (Gibbs)- perhap ...
Article - News Staff - Feb 21 2013 - 12:43pm
- Journey To The Limits Of Spacetime. Hypothetically. With A Computer
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Last month, physicists predicted the formation of accretion disks and relativistic jets that warp and bend more than previously thought, shaped both by the extreme gravity of black holes and by powerful magnetic forces generated by their spin. Black hole ...
Article - News Staff - Feb 21 2013 - 4:29pm