The images used to create this view of Venus were acquired by the Mariner 10 craft on Feb. 7 and 8, 1974. Decades after the Mariner 2 flew by the planet in 1962, much about the planet remains unknown. NASA hide caption
Life on Mars
Crew members on one of the simulated Mars missions this spring included Pitchayapa Jingjit (from left), Becky Parker, Elijah Espinoza and Esteban Ramirez. Community college students and teachers in real life, the team members spent a week in the Utah desert, partly to experience the isolation and challenges of a real trip to Mars. Rae Ellen Bichell/NPR hide caption
To Prepare For Mars Settlement, Simulated Missions Explore Utah's Desert
Artist's depiction shows the separation of the Schiaparelli lander from the Trace Gas Orbiter (left) as it heads for the surface of Mars. European Space Agency via AP hide caption
Here's what he saw. A Mars station? David Martines/youtube.com/TheCalifornian hide caption