Mars is easiest to see when it’s closest to Earth, which happens about every two years. This event is called “opposition.” In ...

Mercury, the closest planet to the sun, moves faster than Earth. It orbits the sun in 88 days, as opposed to our 365. So ...

"It is incredible that modern telescopic surveys have the ability to detect such small objects up to millions of kilometers ...

The model Kite’s team built was unique in that it captured evolution of the Martian landscape and climate over an extremely ...

Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth ...

Discover the wonders of space with Celestia, the free simulator that brings the cosmos to life. Explore over 100,000 stars, ...