News tagged with type ia supernova

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Exiled stars explode far from home

Sharp images obtained by the Hubble Space Telescope confirm that three supernovae discovered several years ago exploded in the dark emptiness of intergalactic space, having been flung from their home galaxies ...

dateJun 04, 2015 in Astronomy
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Accelerating universe? Not so fast

A University of Arizona-led team of astronomers found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognized before; the findings have ...

dateApr 10, 2015 in Astronomy
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Stars with the chemical clock on hold

An international team of astrophysicists, led by Cristina Chiappini from the Leibniz Institute for Astrophysics Potsdam, has discovered a group of red giant stars for which the 'chemical clock' does not work: ...

dateApr 10, 2015 in Astronomy
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Exploded star blooms like a cosmic flower

Because the debris fields of exploded stars, known as supernova remnants, are very hot, energetic, and glow brightly in X-ray light, NASA's Chandra X-ray Observatory has proven to be a valuable tool in studying ...

dateFeb 12, 2015 in Astronomy
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Stellar partnership doomed to end in catastrophe

Astronomers using ESO facilities in combination with telescopes in the Canary Islands have identified two surprisingly massive stars at the heart of the planetary nebula Henize 2-428. As they orbit each other ...

dateFeb 09, 2015 in Astronomy
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