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?

Scientists have discovered what may be the oldest surviving piece of our planet — a tiny chemical clue from the time before ...

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

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

With the recent discovery of traces of what may or may not be or have been life on Mars, eyes are turning to another world in ...

We take a look at what the discovery of liquid water under Mars’ surface could mean, we discover how space affects the human ...

Clues hidden in Martian rock suggest the red planet may have once hosted an ocean. Earth’s own ancient rivers are helping ...

Humans are finally building the technology that could tell us where to look, when to look, and what signs to watch for. What ...

When Earth is opposite Mars from the sun, it will appear full because you’re looking directly on the daylit side. But mitigating this is its far greater distance, plus the fact that Earth appears much ...

Scientists said on Monday they have detected in the harshly acidic clouds of Venus a gas called phosphine that indicates microbes may inhabit Earth's inhospitable neighbor, a tantalizing sign of ...