First steps taken toward developing interstellar lightsails

The idea of traveling through interstellar space using spacecraft propelled by ultrathin sails may sound like the stuff of sci-fi novels. But in fact, a program started in 2016 by Stephen Hawking and Yuri Milner, known as ...

SpaceX catches Starship booster again, but upper stage explodes

Hours after Jeff Bezos's Blue Origin nailed its first-ever orbital mission, SpaceX seized back the spotlight on Thursday as its latest test of Starship, its gargantuan next-generation megarocket, ended with the upper stage ...

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