Mars

A massive overflow from a dam in 2002 carved a channel several meters deep into the bedrock in just days

Bountiful carbonate minerals in a rock outcrop on the Red Planet could have formed under watery greenhouse conditions billions of years ago

This essay was read at the first Gathering for Gardner, held in 1993 in Atlanta

Gardner eschewed special attention for his work, despite having single-handedly popularized recreational mathematics in the U.S. Nevertheless, some fond memories and insights into the man are posted below.

In a speech from Florida's Space Coast, the president argued the case for his proposed NASA budget and outlined his vision for human spaceflight

New tools attempt to capture the sixth extinction currently underway, while also highlighting ways to stop it

A test of bacterial survivability points to possible avenues for microbial survival on Mars, assuming life--and specifically Earth-like life--ever developed there

Now designated a stationary science platform, Spirit's next order of business is bracing for a long, harsh winter

On the frontier of planetary exploration, nothing is easy

A trio of studies presents evidence for the more elusive small planets orbiting nearby stars

Unlike the gas giants Saturn and Jupiter, both of which have dozens of moons, and Earth, which boasts a massive moon relative to its size that helps stabilize the planet, Mars doesn't have much in the way of lunar companions.