To prepare for NASA's first journey to the moon in over half a century, the crew of the Artemis II spent the summer training in Earth's most moon-like environment. NASA astronauts Reid Wiseman ...

KENNEDY SPACE CENTER — It is an iconic machine whose work has spanned nearly the entire history of NASA. And without it, the Saturn V rocket and space shuttle launches would not have been possible.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. As Artemis II ...

The two "phantoms" of the Matroshka AstroRad Radiation Experiment (MARE), which will fly to the Moon on NASA's first Artemis I mission, occupy two of passenger seats (Seat #3 and Seat #4 ...