New, longer video hits Internet and shows Falcon’s landing demise

A pair of European-built, NASA-backed research satellites set for launch Tuesday from California will extend 15 years of global gravity field measurements collected by the GRACE mission before it ended last year, supplying scientists with data to help track the melting of Earth’s ice sheets and chart the impacts of floods and droughts.

The U.S. Space Force’s Space Systems Command announced that SpaceX and ULA would launch five and two missions respectively as part of the latest round of National Security Space Launch contract assignments.

The mission will launch the first big block upgrade to the rocket since its first flight in 2023. Liftoff from SpaceX’s Starbase facilities in southern Texas is set for 4 p.m. CST (5 p.m. EST, 2200 UTC).