NASA has sent five robotic vehicles to Mars. Sojourner, Spirit, Opportunity, Curiosity, and Perseverance. Look back at the missions. (NASA/AFP via Getty Images) Martian mudstones contain features that ...

Strange spiderweb-like ridges on Mars may reveal groundwater lasted longer than scientists thought.

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

NASA’s twin ESCAPADE spacecraft will uncover how the Sun stripped Mars of its atmosphere. Mars is a very different world ...

Add Yahoo as a preferred source to see more of our stories on Google. Has NASA's Perseverance rover at long last found evidence that life did indeed once exist on Mars? Well, after more than four ...

The White House scheme to reshape NASA by slashing its funding could jeopardize future human flights to Mars. Shown here is NASA's 2001 Mars Odyssey spacecraft - one of the three Mars orbiters set to ...

NASA and Elon Musk are racing toward the same destination, but they are not running the same race. While SpaceX talks in terms of the next launch window, NASA is quietly building a layered campaign of ...

NASA's beleaguered Mars Sample Return mission may get a reprieve from an unexpected source. Lockheed Martin has proposed a streamlined, lower-cost alternative that could slash the mission’s price tag ...