Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Missed the spacewalks? Here’s video, photos
On Sunday, NASA astronauts completed their third spacewalk in eight days. Cool video and gorgeous pics from the trio of spacewalks.
March 2, 2015
Touching NASA tributes to Leonard Nimoy’s passing
Nimoy’s character Mr. Spock on Star Trek inspired generations of astronauts, space scientists and engineers, as well as space fans around the globe.
March 2, 2015
Monster black hole at cosmic dawn
A black hole 12 billion times more massive than our sun - at the heart of the brightest quasar in the early universe - as the dark ages of the universe were just ending.
February 27, 2015
Another breathtaking view of Comet Lovejoy
The comet was 51 million miles from Earth at the time – a short distance for the Dark Energy Camera, which is sensitive to light 8 billion light-years away.
February 27, 2015
Watch unusual comet sail past sun
Then stay tuned. This comet - named C/2015 D1 (SOHO) - might become visible in your evening sky. Maybe.
February 25, 2015
Chinese rocket breaks up in northern lights
Lucky observers in western North America saw bright lights streaking in the sky Monday night - the disintegration of a Chinese rocket body. Photo and videos here!
February 24, 2015
Does dark matter cause mass extinctions?
As we journey around the galaxy, our solar system might regularly interact with dark matter, which might dislodge Oort cloud comets and boost heat in Earth's core.
February 24, 2015
Roaming star system a near miss!
Scholz's star passed only 0.8 light-years from our sun, only 70,000 years ago. It came closer than any other known star, sweeping through the Oort comet cloud.
February 21, 2015
Mystery plumes on Mars puzzle scientists
Amateur astronomers spotted them first, but they show up in Hubble images, too. Astronomers are scratching their heads, wondering these mystery plumes are.
February 18, 2015
Russian supply ship launched to ISS today
It's a fast-rendezvous, six-hour launch-to-dock mission to the International Space Station. Docking will occur later today. Online viewing details here.
February 17, 2015
