Swift and Hubble probe an asteroid crash (w/ video)
(PhysOrg.com) -- Late last year, astronomers noticed an asteroid named Scheila had unexpectedly brightened, and it was sporting short-lived plumes. Data from NASA's Swift satellite and Hubble Space Telescope ...
Space & Earth / Space Exploration
Apr 28, 2011 |
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Dust, blowing in the wind
(PhysOrg.com) -- Interstellar space contains vast quantities of dust that obscures our view while helping to catalyze the chemical reactions that turn atomic gases into complex molecular species. Most dust ...
Apr 25, 2011 |
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Ultraviolet spotlight on plump stars in tiny galaxies
(PhysOrg.com) -- Astronomers using NASA's Galaxy Evolution Explorer may be closer to knowing why some of the most massive stellar explosions ever observed occur in the tiniest of galaxies.
Apr 22, 2011 |
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Zoom-up star photos poke holes in century-old astronomical theory
(PhysOrg.com) -- The hottest stars in the universe spin so fast that they get a bit squished at their poles and dimmer around their middle. The 90-year-old theory that predicts the extent of this "gravity ...
Apr 18, 2011 |
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Space jets in a bottle
By creating space-like conditions in a slim 4m vessel, Italian researchers have helped confirm the behaviour of astrophysical jets – streams of charged particles shot out by supermassive black holes and young stars, ...
Apr 12, 2011 |
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NASA's Spitzer discovers time-delayed jets around young star
(PhysOrg.com) -- Astronomers have discovered that two symmetrical jets shooting away from opposite sides of a blossoming star are experiencing a time delay: knots of gas and dust from one jet blast off four-and-a-half ...
Apr 05, 2011 |
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Dark matter could provide heat for starless planets
(PhysOrg.com) -- In a recent paper posted at arXiv.org and submitted to Astrophysical Journal, Dan Hooper and Jason Steffen, physicists at Fermilab in Illinois, present the theory that cold and dark planet ...
Apr 01, 2011 |
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Scientists isolate mysterious 'ribbon' of energy and particles that wraps around heliosphere
In a paper to be published in the April 10, 2011, issue of The Astrophysical Journal, scientists on NASA's Interstellar Boundary Explorer (IBEX) mission, including lead author Nathan Schwadron and others from the University of New ...
Mar 31, 2011 |
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Super cold brown dwarf or is it a planet?
(PhysOrg.com) -- In a month that has already announced the discovery of a brown dwarf 75 light-years from Earth, NASA’s infrared Spitzer Space Telescope has found what could prove to be an even cooler, ...
Mar 23, 2011 |
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Hubble rules out one alternative to dark energy
(PhysOrg.com) -- Astronomers using NASA's Hubble Space Telescope have ruled out an alternate theory on the nature of dark energy after recalculating the expansion rate of the universe to unprecedented accuracy.
Mar 14, 2011 |
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Exploring the magnetic personalities of stars
(PhysOrg.com) -- Massive stars are inherently violent creatures-they burn, they churn, they turn, all the while creating and held hostage by constantly changing magnetic fields of almost unfathomable strength.
Mar 04, 2011 |
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Birth of a baby planet
(PhysOrg.com) -- University of Sydney astronomer, Professor Peter Tuthill, is one of an international team of astronomers who have announced a major step forward in the quest to find planets in orbit around ...
Mar 02, 2011 |
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Scientists investigate the possibility of wormholes between stars
(PhysOrg.com) -- Wormholes are one of the stranger objects that arise in general relativity. Although no experimental evidence for wormholes exists, scientists predict that they would appear to serve as shortcuts ...
Feb 25, 2011 |
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Quasar's belch solves longstanding mystery (w/ Video)
(PhysOrg.com) -- When two galaxies merge to form a giant, the central supermassive black hole in the new galaxy develops an insatiable appetite. However, this ferocious appetite is unsustainable.
Feb 24, 2011 |
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Solar experts detect waves in giant magnetic holes the size of the UK
Massive waves in giant magnetic holes on the surface of the Sun have been discovered for the first time by solar scientists from the University of Sheffield and Queen's University Belfast, something that will ...
Feb 24, 2011 |
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