Q&A with Keith Gendreau, principal investigator of the first X-ray space communications experiment (members only)

SpaceX will go for another first Thursday, this time flying a refurbished Dragon supply ship carrying nearly 6,000 pounds of cargo and experiments to the International Space Station nearly three years after its first mission.

Two U.S.-built Intelsat communications satellites have hitched on to an Ariane 5 rocket for launch from French Guiana next week, the first time the storied company has put two of its spacecraft on the same booster.

President Trump reestablished U.S. Space Command in a White House ceremony Thursday, setting up a unified combatant command previously dissolved in 2002 that Trump said “will defend America’s vital interests in space” amid growing threats to space assets and services.