CO₂ ice blocks on Mars may dig gullies as they slide and sublimate in the thin atmosphere. In lab experiments, scientists recreated these eerie, worm-like movements under Martian conditions. The ...

MIT scientists have discovered ancient rock samples from Greenland, Canada, and Hawaii exhibiting a rare potassium-40 deficit ...

We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

In a Martian valley carved by ancient rivers, a four-pound helicopter sat in silence, its blades half-buried in red dust.