Scientist Sarah Stewart Johnson makes the case for why we should do as much science as we can on Mars—before humans step foot on the planet.
Some black holes sound like a wobbling top, while others rumble in low bass tones. Listen to them yourself, thanks to MIT professor Scott Hughes.
A trio of stellar space reporters round up 2021’s out-of-this-world headlines.
Why do some auroras appear in discrete lines, while others fill the sky with diffuse light? Explore how electrons surf on Alfvén waves.