A long time ago, in a galaxy far, far away, a star detonated with enough energy to briefly shine with an intrinsic brightness of one billion of our suns. The beacon of radiation arrived at Earth 10 billion years later and was captured in a Hubble Space Telescope deep survey of the universe. It is the farthest, and earliest, supernova of its type detected to date. More than simply an example of the ancient fireworks in the young and effervescent universe, the supernova belongs to a special class of stellar detonations that are so reliably bright, they can be used as intergalactic milepost markers.(author unknown)
NASA's Chandra X-ray telescope has made the first detection of X-ray emission from young solar-type stars that lie outside our Milky Way galaxy. They live in a region known as the "Wing" of the Small Magellanic Cloud, a satellite galaxy of our Milky Way. X-rays from young stars trace how active their magnetic fields are. Magnetic activity provides clues to a star's rotation rate and the rising and falling of hot gas in the star's interior. Astronomers suggest that if the X-ray properties of young stars are similar in different environments around our galaxy, then other related properties, such as the formation of planets, are also likely to be similar.(author unknown)
Astrophysics: Fire in the hole!
Nature 496, 7443 (2013). http://www.nature.com/doifinder/10.1038/496020a
Author: Zeeya Merali
Will an astronaut who falls into a black hole be crushed or burned to a crisp?
Against the law
Nature 496, 7443 (2013). doi:10.1038/496005b
Behaviours proposed for black holes conflict with the laws of physics.