Gaia

This observatory has probably been the most transformative astronomy project of the 21st century, but there’s a good chance you’ve…

On March 27, scientists bid farewell to the Gaia telescope, bringing to a close its groundbreaking 11-year mission of mapping…

[CLIP: Theme music] Rachel Feltman: For Scientific American’s Science Quickly, I’m Rachel Feltman. You’ve probably heard of space telescopes like…