A cosmic explosion that seems to have occurred thousands of light-years from the nearest galaxy-sized collection of stars, gas, and dust has puzzled astronomers. This "shot in the dark" is surprising…

New observations by NASA's Cassini spacecraft indicate the rings of Saturn, once thought to have formed during the age of the dinosaurs, instead may have been created roughly 4.5 billion years ago…

More than 10 years after the discovery of the first extrasolar planet, astronomers have now discovered more than 250 of these planets. Until a few years ago, most of the newly discovered exoplanets…

Four billion years ago, says Steve Desch, assistant professor in the School of Earth and Space Exploration at Arizona State University, Uranus and Neptune switched places. His research work appears…

At a Monday meeting of the American Geophysical Union, NASA's Associate Administrator for Science Alan Stern announced the selection of a new mission that will peer deep inside the moon to reveal its…

A team of astronomers have used the NASA/ESA Hubble Space Telescope to detect, for the first time, strong evidence of hazes in the atmosphere of a planet orbiting a distant star. The discovery comes…

A collaboration of over 50 astronomers, The IPHAS consortium, led from the UK, with partners in Europe, USA, Australia, has released today (10th December 2007) the first comprehensive optical digital…

NASA's Voyager 2 spacecraft has entered a vast region at the edge of our solar system where the solar wind runs up against the thin gas between the stars, called the heliosheath, and what it found is…

In science fiction, binary stars are often shorthand for the exotic. A pair of suns rising over some alien landscape quickly communicates the foreign and the outlandish. But that reaction just shows…

Much of the gaseous mass of the universe is bound up in a tangled web of cosmic filaments that stretch for hundreds of millions of light-years, according to a new supercomputer study by a team led by…