A Possible Sign Of Life Right Next Door To Earth, On Venus
Scientists have found a gas associated with living organisms in a region of Venus' atmosphere. They can't figure out how it got there if it didn't come from life.
Life on Mars
To Prepare For Mars Settlement, Simulated Missions Explore Utah's Desert
NASA plans to send people to the Red Planet in the 2030s. In the meantime, a remote location in southern Utah serves as a non-NASA training ground for the Mars-minded.
Mars Lander May Be Missing, But A Second Spacecraft Is Still Humming Along
As scientists try to figure out what happened to the Schiaparelli lander, which may have crash-landed, a craft known as the Trace Gas Orbiter is orbiting the red planet in search of signs of life.