Green auroras danced in skies around the world last night thanks to a massive solar storm that super-charged the cosmic light displays for St. Patrick's Day.
Actor Leonard Nimoy, who portrayed the beloved Vulcan 'Spock' on the original "Star Trek" TV show, died today (Feb. 27) at 83 years old.
A new alien-planet–hunting telescope has just come online in Chile, and it could help scientists peer into the atmospheres of relatively small planets circling nearby stars.
For the first time in history, a spacecraft built on Earth has softly landed on the face of a comet speeding through deep space.
A European probe is expected to make an audacious landing on the face of a comet tomorrow (Nov. 12), and you can follow it live online starting today (Nov. 11).
The biggest sunspot to grace the face of the sun in more than two decades is rotating out of view, but it was responsible for kicking up some truly amazing solar activity this week.
SpaceShipTwo, Virgin Galactic's passenger spacecraft, experienced an 'anomaly' during its fourth rocket-powered test flight on Friday, Oct. 31. See the latest details here.
The full Harvest Moon rises tonight (Sept. 8), and even if you can't see it from your own backyard, you can still watch it live online.
An asteroid will make a close brush with Earth on Sunday, passing by the planet well inside the orbit of the moon.
A Russian official claims that samples collected by cosmonauts show evidence of sea plankton on the outside of the International Space Station, news agencies are reporting.
The sun unleashed two massive solar flares Tuesday (June 10), both of them reaching X-class levels, the biggest storms on the sun. See video of the solar flares here.
Bill Nye — the creator and star of the 1990s hit TV show "Bill Nye the Science Guy" — thinks that entertainment can help raise scientifically literate kids.
'The Amazing Spider-Man 2' is larger than life, and it contains some web-slinging scientific action.