NASA’s Ingenuity Mars Helicopter sent heart-warming final message back to Earth

A tiny machine with a big job to do

ISS crew return to Earth and are extracted from capsule in incredible footage

One of the astronauts had been in space for 204 days.

Scientists find solid metal ball inside Earth’s core

It’s enormous.

Researchers declare Mars unsafe to live on as race to get humans on planet intensifies

The race to colonize Mars could end up being a non-starter