SpaceX Postpones Launch of “Mysterious” U.S. Military Spaceplane

December 12, 2023

Standing down from tonight’s Falcon Heavy launch due to a ground side issue; vehicle and payload remain healthy.

SpaceX posted on X, formerly known as Twitter, after a planned Monday night launch of an unmanned United States military spaceplane was postponed.

Why It Matters: SpaceX is now preparing for the next launch opportunity, which it noted is no sooner than Tuesday night. The mission centers around the U.S. military’s X-37B robotic spaceplane – what’s been described as asecretivespace vehicle that conducts experiments while in orbit, with the U.S. Space Force noting its use in “experimenting with future space domain awareness technologies.” Though the U.S. militarydiscloses few detailsabout the spaceplane’s operations, the upcoming trip will mark the X-37B’s seventh mission since 2010, and the first time being launched from a SpaceX rocket known as a Falcon Heavy (Reuters). The Falcon Heavy rocket is capable of taking “the space plane higher than it has ever gone before,” according to

Read More:

SpaceX postpones planned launch of US military’s secretive X-37B spaceplane (Reuters)

SpaceX delays launch of mysterious X-37B space plane for US military (CNN)

by Emily Hooker, based in Texas