Scientists hit "rewind" to discover how white dwarfs play a role in the evolution of a supernova.
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.
A newly discovered planet-candidate circling star LkCa 15 could provide astronomers with a first-ever look at a gas-giant planet as it grows. It could help prove or debunk current theories.
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.
Trojan asteroid: NASA has discovered that Earth has an asteroid companion traveling just ahead of our planet as it orbits the sun. This so-called Trojan asteroid could serve as a stepping stone to celestial objects farther afield.
Hawaii's Kilauea volcano saw 'quite an exciting development' over the weekend: the lava lake at Pu'u 'O'o drained as fountaining lava burst out of new fissures on Kilauea's eastern flank.