The images, captured by the Mars Express orbiter, reveal the volcano's southeast flank with hundreds of overlapping lava ...

New images from ESA's Mars Express reveal Olympus Mons' colossal scale and intriguing features. Frozen lava tongues cascade ...

A 2025 satellite photo captures the stark contrast between the barren Poás volcano and the surrounding Costa Rican jungle.

Scientists have identified several caves carved by water and they may have held or have evidence of extraterrestrial life.

If there is, or ever has been, life on Mars, the chances are it would exist in caves protected from the severe dust storms, ...

A large subterranean liquid water reservoir located deep within the Martian crust was previously found by scientists ...

New research indicates that early Martian volcanoes may have emitted reactive sulfur gases that warmed the planet and supported conditions suitable for microbial life. Although scientists are still ...

NASA’s InSight mission delivered the first direct data from beneath the Martian surface, revealing a world far more active ...

This global view of Jupiter's moon, Io, was obtained during the tenth orbit of Jupiter by NASA's Galileo spacecraft. Io, ...

A new analysis of data from NASA's Mars Reconnaissance Orbiter reveals that the majority of the Red Planet's dark "slope ...

A rare meteoroid impact on Mars has given scientists a glimpse into how the planet’s dusty surface is constantly reshaped. When a space rock struck near the edge of Apollinaris Mons, a large volcano ...

Gamma Ray Spectrometer measurements from Mars Odyssey added another hint: Elevated “water-equivalent hydrogen” in the same ...