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Super-Earth transit detected from the ground
The astronomers say their technique should let others make ground-based characterizations of dozens of super-Earths, expected to be found in space surveys.
December 1, 2014
What happened when the comet swept past Mars
The story you've been waiting for. The spacecraft images are fascinating, and the details of Comet Siding Spring's exceedingly close pass of Mars might surprise you.
December 1, 2014
Using supermassive black holes to measure cosmic distances
"Eye of Sauron" is a nickname for an active supermassive black hole at the core of a distant galaxy. Researchers measured its distance at 62 million light-years.
November 29, 2014
Video: Astrophysicists discuss the film Interstellar
Black holes, worm holes, exoplanets, time dilation. Three astrophysicists discuss them all in a presentation of the science behind the film Interstellar.
November 28, 2014
Earth has its own Star-Trek-like invisible shield
Scientists studying Earth's Van Allen belts have found an invisible shield that blocks ultrafast electrons from moving deeper into Earth’s atmosphere.
November 28, 2014
Video: Young volcanos on the moon
Scientists have long thought the moon's volcanos stopped erupting a billion years ago. But dotting the lunar landscape are some remarkably fresh volcanic features.
November 26, 2014
Study says gravity and Higgs boson interacted to save the universe
One second after the Big Bang, the Higgs boson should have caused a Big Crunch, collapsing the universe to nothing. But gravity saved the day.
November 22, 2014
Ten things you might not know about space
Ten oddities and misconceptions about space that you may -- or may not -- have heard before.
November 22, 2014
Thud of Philae landing on comet
Take 2 seconds to listen to a sound made 311 million miles away.
November 21, 2014
Is this exotic object an ejected black hole or a huge star?
Is SDSS1133 a supermassive black hole ejected from its home galaxy, or the remains of a massive star that exploded as a supernova? Astronomers aren't sure.
November 19, 2014
