Watch the Falcon 9 and Crew Dragon arrive at the launch pad (members only)

Ready for its 40th launch, India’s Polar Satellite Launch Vehicle is set to carry 31 satellites into orbit Friday, and these photos chronicle the rocket’s launch preparations.

SpaceX has concluded fatigue on an engine cover caused one of the nine Merlin 1D first stage engines on the company’s most recent launch to shut down early during ascent, leading to the loss of the booster during an offshore landing attempt in the Atlantic Ocean, an official said Monday.

SpaceX’s Crew Dragon spacecraft, designed to ferry astronauts to and from the International Space Station, fired into orbit on top of a Falcon 9 rocket Saturday from NASA’s Kennedy Space Center in Florida.