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

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.

(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 ...

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 ...

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 on ...

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

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 ...