The discovery of the skylights and their associated caves was made using archival data from three NASA missions, showing how important findings can be made years or even decades after a mission has ended.
New images from the Mars Express orbiter reveal evidence of a past ice age at Mars's mid-latitudes and shine light on the planet's dynamic climate history.
NASA's twin ESCAPADE Mars probes are on their way to the Red Planet — but it's a circuitous route with a year-long layover.
A European Mars orbiter spotted barcode-like dust streaks on the slopes of Apollinaris Mons, revealing how tiny avalanches help drive the Red Planet's massive dust cycle.
An innovative technique for measuring the force acting on individual grains of sand could help scientists uncover how winds have shaped the surface of Mars.
Ancient explosive volcanic eruptions on Mars could help explain mysterious hints of buried ice from the Red Planet's equator, a new study finds.
If life ever existed on Mars, traces of it might still be frozen beneath the planet’s icy surface.
Blocks of carbon dioxide ice appear to carve mysterious gullies on Mars as they melt down dune slopes and blast away sand.
A new study indicates that crews with a wider range of personalities perform better under pressure, possibly informing how NASA selects and trains its astronauts for future missions to Mars.
Two decades of spacecraft images reveal more than 1,000 dust devils whipping across Mars at unexpected speeds, offering fresh insight into how wind and dust shape the Red Planet.
