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.

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 ...

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 ...

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 ...

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