First observed interstellar object is a speedy, cigar-shaped asteroid
It has been traveling for hundreds of millions of years.
How NASA will defend the Earth against plagues from outer space
Because nobody wants to be dissolved by extraterrestrial amoeboids.
Touring the solar system with a new book of NASA photos
Explore (most of) the solar system in Google Maps
None of the gas giants, some of the moons (and Pluto).
Cassini's life passes before its eyes in NY art exhibition
Recommended Reading: Why Cassini had to be destroyed
The best long-form writing on technology and more on the web.
Cassini mission ends with final plunge into Saturn
"The signal ... is gone and within the next 45 seconds, so will be the spacecraft."
What's next for NASA as Cassini's mission comes to a close
The space agency has almost too many celestial bodies to study
Nine of Cassini’s most exciting discoveries about Saturn
From electrically-charged moons to hexagonal polar storms, this place has it all.