Resilience, not dominance, will shape the next era of space competition. Space has become indispensable to modern warfare. Precision strike, global communications, missile warning, navigation, ...

Ad Astra is working to boost the endurance of the Vasimr plasma rocket to 100 hours of continuous firing at a power level of 100 kilowatts, by 2018. Ad Astra Rocket Company has successfully completed ...

Billionaire entrepreneur Jared Isaacman and SpaceX engineer Sarah Gillis ventured out into the vacuum of space early Thursday and made history. Coverage on this live blog has ended. Follow our full ...