As the four-person crew of Artemis II prepares to launch on a historic mission around the moon as soon as February, some experts are worried about the Orion spacecraft’s heat shield.

In less than two weeks, NASA is scheduled to launch its Artemis 2 mission, the first crewed journey to the Moon in over half ...

NASA’s upcoming Artemis II flight will be the first crewed lunar mission in over 50 years, but it will not land on the moon. Here’s why.

Veteran NASA astronaut Suni Williams announced her retirement Tuesday. Her extended mission to orbit due to the troubled Boeing Starliner test flight was her final foray.

Four astronauts splashed down in the Pacific Ocean as they return early from the International Space Station due to a crew member’s medical issue.

Congress is poised to reject President Donald Trump’s “astounding” proposed cuts to the National Oceanic and Atmospheric Administration as well as NASA’s Earth science programs.

(CNN) — NASA said on Wednesday it was postponing a spacewalk at the International Space Station that was scheduled for Thursday, citing a “medical concern” with one of the crew members. The space ...

CNN’s Elex Michaelson speaks to “Science Guy” Bill Nye about his efforts to keep NASA and its programs fully funded.

Retired NASA astronaut Cady Coleman talks the Artemis II rocket ahead of its February launch.

(CNN) — NASA said on Wednesday it was postponing a spacewalk that was scheduled for Thursday, citing a “medical concern” with one of the crew members. The space agency did not provide additional ...