ScienceDaily: Galaxies News |
- Diamonds in the tail of the scorpion: Star cluster Messier 7
- When a black hole shreds a star, a bright flare tells the story
- Hubble watches stars' clockwork motion in nearby galaxy
| 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. |
| When a black hole shreds a star, a bright flare tells the story Posted: 18 Feb 2014 11:32 AM PST A new study explains what happens during the disruption of a normal sun-like star by a supermassive black hole. The study shows why observers might fail to see evidence of the hydrogen in the star, casting doubt on a 2012 report of the disruption of an exotic helium star. |
| Hubble watches stars' clockwork motion in nearby galaxy Posted: 18 Feb 2014 11:22 AM PST Using the sharp-eyed NASA Hubble Space Telescope, astronomers have for the first time precisely measured the rotation rate of a galaxy based on the clock-like movement of its stars. According to their analysis, the central part of the neighboring galaxy, called the Large Magellanic Cloud (LMC), completes a rotation every 250 million years. |
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