Northrop Grumman executive says SpaceX's Starship rocket has 'awesome' potential but 'not there yet'

Blue Origin's New Shepard rocket booster failed this week during launch. But the escape system prevailed, safely ejecting the crew capsule away from danger.

MICROSCOPE Spacecraft’s Most Precise Test of Key Component of the Theory of General Relativity

Einstein's general relativity holds up under most rigorous test to date