The new images by the Curiosity rover on Mars show "dramatic evidence" of ancient groundwater in crisscrossing low ridges, NASA said.

Mars' opposition occurs about every two years and coincides with the planet's retrograde motion, which began on Dec. 7 and will end Feb. 23. Retrograde occurs when a planet appears to be moving ...

The Visual Monitoring Camera, also known as the Mars Webcam, has been used for decades to help research the planet. It resides more than 1.8 million miles away from Earth, and as one researcher ...

Perseverance landed on Mars in February 2021; since then, the rover has kept busy imaging the planet’s geology and coring rock samples for their—cross your fingers—eventual return to Earth.

Mars orbits at an average distance of 142 million miles (228 million km) from the sun. Its orbit is about 1.5 times the size of Earth's. Sunlight takes about 13 minutes to get to Mars, while it ...