The leak is what led to NASA cancelling the manual piloting demo on Wednesday.

NASA engineers have repaired a faulty helium seal on the upper stage of the Space Launch System rocket and cleared a technical hurdle that had clouded the timeline for Artemis II, the agency’s first crewed lunar mission in more than half a century.

Apart from pesky issues with the spacecraft’s toilet and waste disposal system, most of the Artemis II mission has proceeded like clockwork. NASA has made few changes to the flight plan since the launch of the lunar flyby mission April 1.

As NASA’s Artemis II mission prepares to return to Earth on Friday, April 10, a Hamilton High School grad will be monitoring its progress.

Designed to carry astronauts farther into space than ever before, NASA’s next-generation Orion space capsule is one step closer to its first mission around the Moon. One key component of Orion is getting ready for its trans-Atlantic journey, waiting to ...

About 24 seconds after reentry, the spacecraft will largely be engulfed in plasma, leading to a six-minute blackout period. During this time, the astronauts will not be able to speak with Mission Control. And on Earth, we’ll be left in the dark about what’s happening above, when what is absolutely the most critical phase of the mission unfolds.

The powerhouse that will help NASA’s Orion spacecraft venture beyond the Moon is stateside. The European-built service module that will propel, power and cool during Orion flight to the Moon on Exploration Mission-1 arrived from Germany at the agency’s ...

Artemis II Commander Reid Wiseman gave NASA Glenn Research Center in Cleveland a shoutout during a key return maneuver Friday, recognizing the Ohio team behind Orion’s service module as the moon mission prepared for splashdown.