Compare Mars and Earth in size, atmosphere, gravity, and potential for life. Discover their differences and shared traits. Explore the mysteries of the Red Planet!

July 14 is a date steeped in history, marked by moments that have shaped nations, inspired revolutions, and propelled ...

After its voyage past Mars, Mariner 4 maintained intermittent communication with JPL and returned data about the interplanetary environment for two more years. But by the end of 1967, the spacecraft ...

With Trump’s new budget cutting NASA science programs, the Mars Sample Return mission could be replaced by a private-sector ...

Perseverance is hitting the 'open road' on Mars like no other rover. On June 19, the six-wheeled explorer officially completed the longest day trip of any robot vehicle on another planet. In a single ...

The new test proved the capability of a new propellant that will enhance the rocket's performance, making a sample return mission from Mars increasingly viable.

The Apollo-Soyuz Test Project brought Soviet cosmonauts and NASA astronauts together in the first international human ...