The interior of Mars is as chunky as a delicious macadamia cookie. A new analysis of the acoustic waves that ripple through and bounce around the red planet's guts reveals that the ancient, early ...

NASA’s Curiosity rover captured a coral-shaped rock on Mars. Though not alive, its shape reveals clues about the planet’s geology. Small discoveries like this help scientists decode Mars’ ancient past ...

Frigid water helped paint Mars red and may have shaped a vast coastline, two new studies into the planet’s history reveal. Scientists have detected a possible ancient beach in Mars’ northern ...

A simulated view of Mars as it would be seen from the Mars Global Surveyor spacecraft (Unsplash via NASA) (CN) — Scientists have discovered the longest organic molecules ever found on Mars — carbon ...

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too cold.

This doesn’t mean Mars causes ice ages on its own. Orbital cycles are only part of the picture. Earth’s oceans, atmosphere, ...