As the long-awaited launch of the James Webb Space Telescope approaches, astronomers just picked its successor’s successor.
K2-18b: A world with vast wells of water in its skies
Barnard’s Star b: Another nearby planet with a hidden world
PSR B1620 b: Closer to Earth, in both space and form
WASP-12b: The gas giant that's almost as dark as the void of space
HD 106906b: The gas giant that shouldn't exist
Science is likely a long way from discovering life beyond Earth, but a decades-old equation can help us think about how to look — or possibly lead us astray
NASA has a long history of repurposing old missions that finished or went wrong and ending up with great science
Our favorites from the week
The Scienceline Newsletter
Sign up for regular updates.