The First Exoplanets Were Discovered In 1917—But Nobody Realized It

When astronomers found two planets orbiting a pulsar in 1992, it was considered the first definitive detection of planets outside our solar system. But new research reveals that, nearly a century ago, a young astronomer discovered evidence of an extrasolar planetary system — he just never realized it at the time. » 10/22/14 7:40am Yesterday 7:40am

Does Saturn's 'Death Star' Moon Harbor A Hidden Ocean?

It's not the prettiest thing in the solar system, nor is it the most interesting. But Mimas — a pockmarked moon in orbit around Saturn — does exhibit a rather strange wobble. A team of astronomers say there can only be one of two explanations: either it's harbouring a subterranean ocean or it has an irregularly shaped… » 10/17/14 10:20am Friday 10:20am

Curious Signal Could Be Dark Matter Pouring From The Sun's Core

This could be historic: Astronomers from Leicester University have detected a strange signal in the X-ray spectrum that appears to be a signature of 'axions' — a hypothetical dark matter particle. It could take years to confirm, but this may be the first direct detection and identification of dark matter. » 10/17/14 8:00am 10/17/14 8:00am

The Colbert Report Honors Sally Ride, America's First Woman In Space

Sally Ride, America's first female astronaut, passed away a little over two years ago. This past Thursday, Lynn Sherr – Ride's friend, and author of the recently published biography on the late astronaut – stopped by the Colbert Report to talk about Ride's role as a feminist, scientist, and role model. » 10/05/14 1:40pm 10/05/14 1:40pm