News tagged with astronomer

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How the largest star known is tearing itself apart

(Phys.org) —An international team of astronomers has observed part of the final death throes of the largest known star in the universe as it throws off its outer layers. The discovery, by a collaboration ...

Oct 16, 2013
4.6 / 5 (41) 58 | with audio podcast

Research maps where stars are born

(Phys.org) —A University of Arizona-led group of astronomers has completed the largest-ever survey of dense gas clouds in the Milky Way – pockets shrouded in gas and dust where new stars are being born.

Oct 14, 2013
4.8 / 5 (21) 3 | with audio podcast

An asteroid pile-up in the orbit of Mars

The orbit of the planet Mars is host to the remains of an ancient collision that created many of its Trojan asteroids, a new study has concluded. It paints a new picture of how these objects came to be and ...

Oct 11, 2013
5 / 5 (11) 6 | with audio podcast

Found: Planets skimming a star's surface

A new planet-hunting survey has revealed planetary candidates with orbital periods as short as four hours and so close to their host stars that they are nearly skimming the stellar surface. If confirmed, these candidates ...

Oct 11, 2013
4.8 / 5 (13) 52 | with audio podcast

Dating our galaxy's dormant volcano

(Phys.org) —A dormant volcano—a supermassive black hole—lies at the heart of our galaxy. Fresh evidence suggests that it last erupted two million years ago.

Sep 23, 2013
4.7 / 5 (24) 5 | with audio podcast