Mars is going through an ice age, according to a new study. Based on radar data collected by Nasa's Mars Reconnaissance Orbiter, researchers at the Southwest Research Institute have found an increase in ice at Mars' north pole is consistent with the long-term drop in temperature associated with an ice age.

A trio of scientists says they've identified the best place to look for evidence of ancient life on Mars — one of the youngest lake-bearing basins ever discovered.

Nasa's Mars Reconnaissance Orbiter has found glass in a crater on Mars.