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| Astronomy |
Black hole sheds light on a galaxy
A light echo occurs when interstellar gas is heated by radiation and reacts by emission of light. An international team led by Stefanie Komossa from the Max Planck Institute for extraterrestrial Physics in Garching, Germany, has observed the light echo of an enormous X-ray flare, which was almost certainly produced when a single star was disrupted by a supermassive black hole. For the first time, the light echo of such a rare and highly dramatic event could be observed in great detail. The light echo not only revealed the stellar disruption process, but it also provides a powerful new method for mapping galactic nuclei.
Plan to identify watery earth-like planets develops
Astronomers are looking to identify Earth-like watery worlds circling distant stars from a glint of light seen through an optical space telescope and a mathematical method developed by researchers at Penn State and the University of Hawaii.
Glaciers reveal martian climate has been recently active
Brown University researchers have found compelling evidence of thick, recurring glaciers on Mars, a discovery that suggests that the Red Planet's climate was much more dynamic than previously believed – and could change again. Results are published on the cover of Geology magazine.
Is there anybody out there?
Is there anybody out there? Probably not, according to a scientist from the University of East Anglia. A mathematical model produced by Prof Andrew Watson suggests that the odds of finding new life on other Earth-like planets are low, given the time it has taken for beings such as humans to evolve and the remaining life span of Earth.
Graphene gazing gives glimpse of foundations of universe
Researchers at The University of Manchester have used graphene to measure an important and mysterious fundamental constant - and glimpse the foundations of the universe.
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Laser precision added to search for new earths
Harvard scientists have unveiled a new laser-measuring device that they say will provide a critical advance in the resolution of current planet-finding techniques, making the discovery of Earth-sized planets possible.
The coldest brown dwarf ever observed: closing the gap between stars and planets
An international team led by French and Canadian astronomers has just discovered the coldest brown dwarf ever observed. Their results will soon be published in Astronomy & Astrophysics.
Meteorites delivered the 'seeds' of earth's left-hand life
Flash back three or four billion years — Earth is a hot, dry and lifeless place. All is still. Without warning, a meteor slams into the desert plains at over ten thousand miles per hour. With it, this violent collision may have planted the chemical seeds of life on Earth.
Two new star systems are first of their kind ever found
Astronomers have spied a faraway star system that is so unusual, it was one of a kind -- until its discovery helped them pinpoint a second one that was much closer to home.
For the paper trail of life on Mars or other planets, find cellulose
Looking for evidence of life on Mars or other planets? Finding cellulose microfibers would be the next best thing to a close encounter, according to new research from the University of North Carolina at Chapel Hill.
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| Quotes | Friendship is born at that moment when one person says to another, What! You too? I thought I was the only one! -- C.S. Lewis
For the man who has everything. -- A sign in a Manchester shop above a display for burglar alarms
For the scientific acquisition of knowledge is almost as tedious as the routine acquisition of wealth. — Eric Linklater (1899-1974)
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