The agency did not complete a practice countdown for a mission that would be the first to send people around the moon in more than 50 years.The Artemis II rocket at the launch complex at Cape Canaveral, Fla. on Jan. 17.

The New Shepard rocket from Blue Origin, which brought 92 people on trips to the edge of space, will cease flying for at least two years as the company prioritizes NASA contracts.

The first crewed mission around the moon in more than 50 years is coming up. Here’s how to see it at sites in and around the Kennedy Space Center in Florida.NASA is preparing to send four astronauts on its lunar Artemis II mission. Above, the scene on Jan. 17 during the rollout at the Kennedy Space Center in Florida.

The sensors used to listen for earthquakes could help protect people from the hazards created by falling spacecraft.

The Space Launch System and Orion capsule are being transported to the launchpad before an astronaut mission that could launch as soon as Feb. 6.