Four astronauts in training to fly around the moon early next year strapped into their Orion spacecraft this weekend for a dress rehearsal countdown in a major milestone toward launch. Based on ...

NASA is running a high‑stakes dress‑rehearsal countdown for Artemis II, the first mission to send astronauts toward the Moon in more than half a century. The two‑day test is a full simulation of ...

The Space Launch System that will carry Artemis II astronauts around the Moon and back has now taken on its most precious cargo yet: hundreds of thousands of gallons of supercold propellant. With the ...

NASA ran into exasperating fuel leaks during a make-or-break test of its new moon rocket Monday, calling into question how soon astronauts could take off for a trip around the moon.The leaks — ...