From X-ray imaging to slithering beneath Enceladus’ crust, space technology is always expanding what we can see for ourselves.

The snake-like robot is being designed to autonomously navigate the challenging terrain of Saturn’s moon Enceladus, including descending into fissures in the moon’s icy crust. The skills it needs in order to explore this distant, unfamiliar world may make EELS well equipped to explore even more alien worlds, perhaps including exoplanets.

Knowing that you've found signs of life beyond Earth may not be as clear-cut and simple as one might think.

A big rover makes a big find on Mars. Little rovers have their place in exploration, too.

A single 3.5 billion-year-old rock shows signs of all the conditions life needs to thrive.