While getting ready for a camping trip, an amateur astronomer spotted a possible crater. It appears to be a match, pending microscopic results.
NASA’s Viking 1 mission blazed a crucial trail with its Mars landing on July 20, 1976. Now, half a century later, that trail leads up into the Red Planet’s skies.
Remnants from Martian history stay scattered across the planet’s surface.
Did Viking 1 find evidence of life on Mars? Fifty years after the NASA lander touched down, the jury is still out.
New images from the European Space Agency’s Mars Express orbiter have captured strange-looking waves on the Red Planet.
Satellites have captured images of the billowing smoke.
A new study suggests the most extreme solar storms to strike Earth could have greater impacts on satellites, power grids and communications than previously thought.
Evidence for landslides down steep crater walls on Pluto have been found in imagery from NASA’s New Horizons mission.
Glacial ice carves its way downhill.
What could we be looking at?