From the first color photograph of Earth from space to Buzz Aldrin's 1966 spacewalking selfie, an auction of vintage NASA images brings together a lot of fabulous space firsts.
Astronaut Buzz Aldrin's groundbreaking selfie taken during a spacewalk goes up for auction and blows away its estimated minimum, by ten times.
The latest images from NASA's Dawn spacecraft reveal a second mysterious bright spot on the surface of Ceres. Perhaps it's a giant Ceresian welcome sign?
Scientists have found a black hole 12 billion times more massive than the Sun that was formed so soon after the Big Bang it's challenging what we know about black holes.
Meteors captured on video as fireballs lighting up the night sky are becoming more common thanks to ubiquitous smartphones. Except this one was no space rock.
Curiosity's latest self-portrait shows the plucky machine surrounded by Mars landscape details, including Mount Sharp, cliffs and the crater rim.
A lone-wolf comet buzzes the sun and surprises researchers by making it around to the other side.
Few selfies are as dramatic as the ones taken in space. A NASA astronaut delivers a spacewalk selfie that includes himself, Earth and the International Space Station.
Selfies aren't bound to our planet. Plenty of intrepid astronauts and machines have snapped eye-catching self-portraits from space.
All the cool space-geek kids are signing up to die on Mars these days. The CraveCast crew discusses Mars One, what Neil Armstrong kept from the moon and more this Tuesday at noon PT.
Technically Incorrect: Speaking at London's Science Museum, famed physicist Stephen Hawking insists that humans must change their ways and dedicate more to space travel if we want to survive.
A winner has been declared in the debate about stars, dark matter and black holes, and it can help us understand how elliptical galaxies grow.
What is Net neutrality?
Learn about the debate over Internet traffic equality and why it matters.