Space

Supermassive black holes in the cores of some galaxies drive massive outflows of molecular hydrogen gas. As a result, most of the cold gas is expelled from the galaxies. Since cold gas is required…

Astronomers have found a "hotspot" beneath the Big Dipper emitting a disproportionate number of the highest-energy cosmic rays, a discovery which may move physics toward identifying the mysterious…

A newly discovered planet now named OGLE-2013-BLG-0341LBb in a binary star system located 3,000 light-years from Earth is expanding astronomers' notions of where Earth-like—and even potentially…

Astronomers search for exoplanets by measuring shifts in the pattern of a star's spectrum - the different wavelengths of radiation that it emits as light. These "Doppler shifts" result from subtle…

The HESS-II (High Energy Stereoscopic System) telescope in Namibia has detected gamma rays of only 30 Giga electron volts (GeV) from the Vela pulsar, the first pulsar to be detected by HESS and the…

Acoustic vibrations – sound waves – are produced by radiation pressure inside stars. While physicists have long posited that young stars vibrate differently than older stars, a new study says it is…

At first glance, Titan, the largest moon of Saturn, has little in common with Earth. Titan's surface temperature dips tp nearly 300 F below zero, its seas slosh with liquid methane, and its sky is a…

We don't know what dark matter is but we know it must be. And now, computer hypothetically, we know it a little better, thanks to new supercomputer simulations showing a possible evolution of…

Surrounding the sun is a vast atmosphere of solar particles, through which magnetic fields swarm, solar flares erupt, and gigantic columns of material rise, fall and jostle each other around.  …

Space looks empty the same way that nature sounds quiet. Unlike nature, space actually is a soundless vacuum, but it's not a void. Invisible to human eyes, space flows with electric activity. NASA is…