The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

The sandfish lizard moves very efficiently through the sands of the Sahara desert, and not surprisingly, it doesn't use ...

After more than five years of roaming the desolate and dusty landscapes of the Martian surface, NASA’s Perseverance rover has come across some of the most intriguing evidence yet of ancient microbial ...

In September 2025, NASA announced that its Perseverance rover had discovered a potential biosignature, which is a substance or structure that might have a biological origin. A new paper, published in ...

Reaction wheels are useful things, typically used by satellites to keep themselves oriented the right way up in space. Turning the reaction wheel creates an equal and opposite torque in the spacecraft ...