ScienceDaily: Astronomy News |
- Astronomers get first peek into core of supernova, using NuSTAR telescope
- Clouds seen circling supermassive black hole
- Diamonds in the tail of the scorpion: Star cluster Messier 7
| Astronomers get first peek into core of supernova, using NuSTAR telescope Posted: 19 Feb 2014 10:33 AM PST Astronomers have peered for the first time into the heart of an exploding star in the final minutes of its existence. The feat by the high-energy X-ray satellite NuSTAR provides details of the physics of the core explosion inaccessible until now, says team member Steven Boggs of UC Berkeley. NuSTAR mapped radioactive titanium in the Cassiopeia A supernova remnant, which has expanded outward and become visible from Earth since the central star exploded in 1671. |
| Clouds seen circling supermassive black hole Posted: 19 Feb 2014 09:46 AM PST Astronomers see huge clouds of gas orbiting supermassive black holes at the centres of galaxies. Once thought to be a relatively uniform, fog-like ring, the accreting matter instead forms clumps dense enough to intermittently dim the intense radiation blazing forth as these enormous objects condense and consume matter. |
| Diamonds in the tail of the scorpion: Star cluster Messier 7 Posted: 19 Feb 2014 04:52 AM PST A new image shows the bright star cluster Messier 7. Easily spotted with the naked eye close to the tail of the constellation of Scorpius, it is one of the most prominent open clusters of stars in the sky, making it an important astronomical research target. |
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