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 6:16pm Wednesday 6:16pm

Comet 67P/Churyumov-Gerasimenko Is Way Darker Than You Probably Realize

You'd never know from all the high-contrast photographs of Comet 67P/Churyumov-Gerasimenko that the comet is actually quite dark. This recently released composite image reveals how little light there is emanating from 67P/C-G, relative to other objects in our solar system. » 10/19/14 1:38pm Sunday 1:38pm

An Astronaut Made This Floating Candy Corn Sphere For Science


Astronauts are allowed to bring special "crew preference" items with them when they go into space. NASA astronaut Don Pettit chose candy corn for his nearly six-month mission aboard the International Space Station. But, this candy had a destiny much greater than being a Halloween snack. » 10/17/14 8:25pm 10/17/14 8:25pm

Why Did NASA Kill the One-Person Spacecraft?

On February 7, 1984, astronaut Bruce McCandless made history as the pilot for the test flight of the Manned Maneuvering Unit (MMU). On live TV, he backed away from the Space Shuttle Challenger, venturing 320 feet into space, becoming the first human satellite. But, by the end of the year, the MMU was mothballed. » 10/15/14 7:10pm 10/15/14 7:10pm

This Is Precisely Where We'll Be Landing on Comet Churyumov-Gerasimenko

This is it folks, the area on Comet 67P/Churyumov–Gerasimenko where the Philae Lander will touch down on November 12. The ESA has officially given the green light for its Rosetta mission to deliver the lander in the first-ever attempt at a soft touchdown on a comet. We now have the timeline of events and an animated… » 10/15/14 7:10pm 10/15/14 7:10pm

MIT Study Says Mars One Colonists Would Starve (Among Other Things)

Mars One may have taken us by surprise when the non-profit organization boldly announced that it would put colonists on Mars in the 2020s. We were even more amazed when legions of amateur astronauts signed up for a one-way ticket to the red rock. However, MIT students believe the effort, in its current form, is doomed… » 10/12/14 6:02pm 10/12/14 6:02pm