NASA is holding a briefing Tuesday in which it is widely expected to push back the timeline for the Artemis missions to return astronauts to the Moon, amid delays to the delivery of key components by contractors.
Artemis, named after the sister of Apollo in Greek mythology, was officially announced in 2017 as part of the US space agency's plans to establish a sustained presence on Earth's nearest space neighbor, and apply lessons learned there for a future mission to Mars.
