NASA is now targeting March for the earliest possible launch of its historic Artemis II lunar mission, which will send four astronauts into deep space for the first time since the Apollo program ended more than five decades ago.

As NASA completes final preparations for the Artemis II mission, including a critical 'wet dress rehearsal,' former astronaut Leroy Chiao spoke with NBC News' Brian Cheung about the anticipated missio...

The hands-on test, called a “wet dress rehearsal,” involves filling up the rocket’s tanks with more than 700,000 pounds of super-chilled propellants.