KENNEDY SPACE CENTER — During a press conference on Tuesday afternoon, NASA officials said that due to a liquid hydrogen leak and other issues, they will be postponing the crewed Artemis II launch to ...

A resistor in the cloud is worth two in the hand.

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NASA’s test run of its Artemis II countdown ran into problems Monday at Kennedy Space Center, scrapping any chance of the moonbound mission launching this month. Instead, the agency is targeting March ...

A dress rehearsal countdown for NASA's Artemis II moon rocket, intended to clear the way for a possible February launch, ran into a variety of problems and ultimately was called off early Tuesday ...

NASA's Artemis 2 mission, which will send four astronauts around the moon, has been delayed by cold weather in Florida. A critical prelaunch test, known as a wet dress rehearsal, is now scheduled for ...

NASA is conducting a final major test, known as a wet dress rehearsal, for its SLS rocket ahead of the Artemis II mission. Extreme cold in Florida has caused a 24-hour delay for the test, with teams ...

If all goes according to plan Monday, NASA’s launch team at Kennedy Space Center in Florida will load more than 700,000 gallons of super-cold propellants into the rocket built to send the Artemis II ...

NASA has issued the final request for proposals for its Engineering Services and Science Capability Augmentation, or ESSCA, II contract, to strengthen technical and scientific support across multiple ...

Braving rare sub-freezing temperatures, Kennedy Space Center workers pressed ahead with a dress-rehearsal countdown Sunday, readying NASA's huge Space Launch System (SLS) rocket for a critical fueling ...

NASA is preparing for the final major test of the Artemis II mission's SLS rocket. The four astronauts for the mission entered quarantine in Houston ahead of the flight around the moon. A "wet dress ...

Yu Darvish underwent an internal brace procedure on his right elbow in October. David Berding / Getty Images Responding to a report he plans to retire, veteran right-hander Yu Darvish said Saturday he ...