asteroids
NASA’s Latest Mission Will Attempt To Visit an Asteroid—And Bring a Piece Home
OSIRIS-REx will help us defend ourselves against future asteroid attacks.
The Looming Extinction of Humankind, Explained
Fortunately, advanced technologies could give us a way out, if we let them.
Four Billion Years Ago, the Moon May Have Taken a Punch from a Protoplanet
How the Man in the Moon got his right eye.
How the UN’s Top Outer Space Boss Will Fight Space Debris
Asteroids, space weather, flying junk: David Kendall has his work cut out for him.
Like Dinosaurs, Meteorites Could Have Been Very Different Millions of Years Ago
Geologists discovered a new kind of meteorite they reckon could now be "extinct."
Watch Two Years of Asteroid Observations in 20 Seconds
The quest to root out all the stray space rocks near Earth is simultaneously comforting and unnerving.
After a Brutal Audit, NASA Unveils Its New Asteroid Detection Program
Let’s not go the way of the dinosaurs.
The US Says Asteroid Mining Is Legal for Americans. What About Everyone Else?
A new US law says American companies can keep resources they obtain in space, but some argue it contravenes international space law.
Gamma Rays Can Show Us Which Asteroids Are Worth Mining
Old prospector, meet the technology that could replace you.
A Step-by-Step Guide to Terraforming Mars
This video shows the basic steps it would take to make Mars habitable.