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News articles tagged with 'star'

[chronologically, reverse order]

Ticking stellar time bomb identified

— 18 Nov 2009 12:30 | Astronomy

'One of the major problems in modern astrophysics is the fact that we still do not know exactly what kinds of stellar system explode as a Type Ia supernova,' says Patrick Woudt, from... — full story

Close-up movie shows hidden details in the birth of super-suns

— 17 Nov 2009 12:29 | Astronomy

The constellation of Orion is a hotbed of massive star formation, most prominently in the Great Nebula that sits in Orion's sword. The glowing gas of the Nebula is powered by a group... — full story

2 Earth-sized bodies with oxygen rich atmospheres found - but they're stars not planets

— 13 Nov 2009 14:34 | Astronomy

Astrophysicists at the University of Warwick and Kiel University have discovered two earth sized bodies with oxygen rich atmospheres - however there is a bit of a disappointing snag... — full story

Artist's impression of a baby star still surrounded by a protoplanetary disc in which planets are forming. Using ESO's very successful HARPS spectrograph, a team of astronomers has found that Sun-like stars which host planets have destroyed their lithium much more efficiently than planet-free stars. This finding does not only shed light on the low levels of this chemical element in the Sun, solving a long-standing mystery, but also provides astronomers with a very efficient way to pick out the stars most likely to host planets. It is not clear what causes the lithium to be destroyed. The general idea is that the planets or the presence of the protoplanetary disc disturb the interior of the star, bringing the lithium deeper down into the star than usual, into regions where the temperature is so hot that it is destroyed, (c) ESO/L. CalcadaExoplanets clue to sun's curious chemistry

— 12 Nov 2009 09:47 | Astronomy

'For almost 10 years we have tried to find out what distinguishes stars with planetary systems from their barren cousins,' says Garik Israelian, lead author of a paper appearing this... — full story

Swift, XMM-Newton satellites tune into a middleweight black hole

— 11 Nov 2009 14:03 | Astronomy

While astronomers have studied lightweight and heavyweight black holes for decades, the evidence for black holes with intermediate masses has been much harder to come by. Now, astronomers... — full story

Rapid star formation spotted in 'stellar nurseries' of infant galaxies

— 11 Nov 2009 11:18 | Astronomy

The Universe's infant galaxies enjoyed rapid growth spurts forming stars like our sun at a rate of up to 50 stars a year, according to scientists at Durham University... — full story

'Dropouts' pinpoint earliest galaxies

— 8 Nov 2009 12:13 | Astronomy

Astronomers, conducting the broadest survey to date of galaxies from about 800 million years after the Big Bang, have found 22 early galaxies and confirmed the age of one by its characteristic... — full story

Carbon atmosphere discovered on neutron star

— 5 Nov 2009 13:30 | Astronomy

Evidence for a thin veil of carbon has been found on the neutron star in the Cassiopeia A supernova remnant. This discovery, made with NASA's Chandra X-ray Observatory, resolves a ten-year... — full story

U of A physicist identifies mysterious core left by exploding star

— 5 Nov 2009 12:53 | Astronomy

University of Alberta physics professor Craig Heinke has solved a mystery that lies 11,000 light years beyond Earth. A supernova (or exploding star), 20 times heavier than our sun blasted... — full story

The FORS1 instrument on the ESO Very Large Telescope (VLT) at ESO's Paranal Observatory was used to take this exquisitely sharp close up view of the colourful Jewel Box cluster, NGC 4755. The telescope's huge mirror allowed very short exposure times: just 2.6 seconds through a blue filter (B), 1.3 seconds through a yellow/green filter (V) and 1.3 seconds through a red filter (R). The field of view spans about seven arcminutes, (c) ESOOpening up a colourful cosmic jewel box

— 29 Oct 2009 11:21 | Astronomy

Star clusters are among the most visually alluring and astrophysically fascinating objects in the sky. One of the most spectacular nestles deep in the southern skies near the Southern... — full story

News articles tagged with 'star' — 275
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