Though NASA was optimistic about launching four astronauts on a trip around the moon as early as Friday, the space agency is now looking at March after complications during a key preflight test. As it prepares for the Artemis 2 mission,

NASA, which has waited more than 50 years to launch another human moon mission, will wait at least another month. Here's the latest on Artemis 2.

NASA Artemis 2 mission after encountering hydrogen leaks during a fueling test of the Space Launch System. The Space Launch System (SLS) and Orion spacecraft

Artemis 2 will use the SLS to send a crew of four aboard an Orion spacecraft on a 10-day mission looping within 4,600 miles (7,400 km) of the Moon. The crew consists of Commander Reid Wiseman, Pilot Victor Glover,

Before NASA can decide a rocket launch date for Artemis 2, the giant SLS rocket has to ace a critical fueling test known as a wet dress rehearsal.

While the world awaits the first crewed moon mission in more than 50 years, Time magazine is celebrating the momentous event with a special Artemis 2 cover issue that hit newsstands on Jan. 30.

A day-by-day look at the upcoming lunar journey.

Cold weather and wind are slowing down the Artemis-2 mission. But the weather is not the only thing causing experts headaches before the mission.

NASA is delaying a key fueling test for the Artemis 2 mission because of weather, reducing the chances the launch can take place during its February window.

NASA will conduct at least one more wet dress rehearsal before setting a target date to launch four astronauts on a trip around the moon.

How well Artemis II manages its risks — untested hardware, deep-space distance, and limited escape options — will shape NASA's plans for future lunar landings and, potentially, human missions to Mars. A serious failure could revive long-standing questions about whether the dangers of deep space still justify sending people there.