NASA has started the countdown for a second wet dress rehearsal for its Artemis II moon mission, a critical practice run leading up to the planned launch that will send astronauts on a journey around the Moon — the first such crewed flight in more than 50 years.

NASA is preparing to conduct a critical prelaunch test known as a wet dress rehearsal for the historic Artemis II mission.

In just a matter of days (hopefully), four astronauts will launch to go around the Moon. Artemis II could break multiple records, including the farthest humanity has ever reached into space and the fastest people have ever traveled in space.

NASA and SpaceX's Crew-12 mission is set to launch 4 astronauts to the International Space Station. Here's when and how to watch the Florida liftoff.

NASA and SpaceX will both provide live coverage of the Crew-12 mission to the International Space Station. Here's how to watch.

The Crew-12 mission, SpaceX’s 20th human spaceflight, launched at 5:15 AM Eastern on February 13 from Cape Canaveral in Florida. It’s expected to dock with the International Space Station today, February 14,

Four crew members lift off to the International Space Station from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida.

Live updates from NASA's SpaceX Crew-12 astronaut liftoff aboard a Falcon 9 rocket Friday, Feb. 13, from Cape Canaveral Space Force Station.