The James Webb Space Telescope blasted off from a launchpad in French Guiana in 2021, before reaching a spot in orbit a million miles away. It soon began breaking cosmology.

A double explosion, in which a dying star split, then recombined, may be a long-hypothesized but never-before-seen "superkilonova." ...

The space agency failed to declare the spacecraft's thruster glitch as a mishap, creating confusion and uncertainty.

With plans to launch the massive Starship from Florida next year, SpaceX defended its commitment to airspace safety after a ...