NASA’s Mars Perseverance rover has a new companion called ‘Dwayne’. No, it’s not an alien – though the rover is tasked with searching for signs of ancient life on the Red Planet.

It’s hard to look for something you’ve never seen before – and that might not even exist. But you have to start somewhere.

Hunting for life on other worlds isn’t easy. Victor Habbick Visions/Science Photo Library via Getty Images Cole Mathis, ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...

Created using data from the Mars Express High Resolution Stereo Camera (HRSC), the new video depicts the fractured, uneven ...

Why do astronomers look for signs of life on other planets based on how life is on Earth? Couldn’t there be totally different kinds of life on other planets? – Henry, age 13, Somerville ...

Why do astronomers look for signs of life on other planets based on how life is on Earth? Couldn’t there be totally different kinds of life on other planets? – Henry, age 13, Somerville, Massachusetts ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why do astronomers look for signs of life ...

ESA's Mars Express orbiter surveyed the vast Nili Fossae trenches, which formed following a massive impact billions of years ...

The company achieved a key set of ambitious goals on the fourth test flight of a vehicle that is central to Elon Musk’s vision of sending people to Mars. By Kenneth Chang Two NASA astronauts ...