The discovery of four ruby-red, dim galaxies at the farthest fringes of the universe could help scientists understand how the earliest galaxies evolved to become what we see today.
The ALMA radio telescope array set to come on line this week will give astronomers an unprecedented look into areas of the universe obscured from other telescopes – from star nurseries in other galaxies to the black hole at the center of the Milky Way.
Super-Earth: The newfound haul of alien planets includes 16 super-Earths, which are potentially rocky worlds that are more massive than our planet. One in particular has captured astronomers' attention because it orbits at the edge of its star's habitable zone, suggesting conditions could be ripe to support life.
For a planet to support life, it faces long odds: It has to be the right size, right composition, and right distance from its star. On Monday astronomers announced a trove of new planet 'candidates.'
Darkest planet ever discovered is a gas giant but reflects only 1 percent of the light falling on it. Scientists speculate an unknown chemical or gas is absorbing light.
NASA's Kepler spacecraft, which is searching for Earth-mass planets orbiting sun-like stars, is finding hundreds of candidate planets, and many more multi-planet systems than expected.
Beginning of the end of the world: May 21st is what a California minister (with a considerable following) predicts. Scientists, for their part, consider the sun's 'habitable zone' in calculating when Earth will become toast.
This week will see a lesser known meteor shower, the Quadrantid, dazzle the night sky on Jan. 3 and 4. It's the first of nine significant meteor showers in 2011. Here’s a list of all the events and what to watch for each time.
Scientists seeking an astronomical first – discerning the atmospheric composition of a 'super Earth' exoplanet – have now learned enough to rule out one leading theory.