The rocket’s core stage will be loaded with more than 700,000 gallons of cryogenic fuel during the upcoming tanking phase.

NASA says it can't try until March at the earliest to send a crewed spacecraft on a flight around the moon and back, due to hydrogen leaks during testing of the Artemis II rocket.

Europe’s Ariane 6 rocket is scheduled to make a powerful debut with a new equipment configuration Thursday, flying with four boosters to carry Amazon’s internet satellites. The launch will take place ...