News tagged with stars

Giant cosmic tsunami wakes up comatose galaxies

Galaxies are often found in clusters, with many 'red and dead' neighbours that stopped forming stars in the distant past. Now an international team of astronomers, led by Andra Stroe of Leiden Observatory and David Sobral ...

dateApr 24, 2015 in Astronomy
shares2762 comments 0

Astronomers find runaway galaxies

We know of about two dozen runaway stars, and have even found one runaway star cluster escaping its galaxy forever. Now, astronomers have spotted 11 runaway galaxies that have been flung out of their homes to wander the void ...

dateApr 23, 2015 in Astronomy
shares1514 comments 52

Tau Ceti: The next Earth? Probably not

As the search continues for Earth-size planets orbiting at just the right distance from their star, a region termed the habitable zone, the number of potentially life-supporting planets grows. In two decades we have progressed ...

dateApr 22, 2015 in Astronomy
shares659 comments 3

First exoplanet visible light spectrum

Astronomers using the HARPS planet-hunting machine at ESO's La Silla Observatory in Chile have made the first-ever direct detection of the spectrum of visible light reflected off an exoplanet. These observations also revealed ...

dateApr 22, 2015 in Astronomy
shares323 comments 0

Image: Thor's Helmet nebula in the X-ray spectrum

This brightly coloured scene shows a giant cloud of glowing gas and dust known as NGC 2359. This is also dubbed the Thor's Helmet nebula, due to the arching arms of gas stemming from the central bulge and curving towards ...

dateApr 20, 2015 in Astronomy
shares158 comments 0

White dwarf may have shredded passing planet

The destruction of a planet may sound like the stuff of science fiction, but a team of astronomers has found evidence that this may have happened in an ancient cluster of stars at the edge of the Milky Way galaxy.

dateApr 17, 2015 in Astronomy
shares728 comments 0