Speculation has been swirling over what Prime Minister Narendra Modi received as a gift from the world's richest man, Elon ...

As more satellites, telescopes, and other spacecraft are built to be repairable, it will take reliable trajectories for ...

The fact that one can do so anyway in a setting of the highest stakes, while stating truthfully that the work originated in a ...

A new book explores how one biologist’s work at the North and South Poles changed the way he sees the world and our place in ...

From the daily newsletter: a doctor goes to Mars. Plus: investigating celebrity yearbooks; Merve Emre on friendship books; ...