The next crewed trip around the Moon has hit another snag, and this time the culprit is a stubborn leak in the rocket’s fuel ...

The small rocket and capsule have been flying since April 2015 and have combined to make 38 launches, all but one of which ...

Light is the fastest phenomenon in the universe, clocking in at just under 300,000 kilometers per second. The telescopes that observe that light, from radio waves to gamma rays, are built at rather ...

Right on schedule to welcome the new month, the Sun has turned into a solar firing range of sorts this week, unleashing a ...

The countdown pause at 5 minutes 15 seconds remaining was not due to the mission time limitation, but was caused by ground ...

NASA’s associate administrator, the agency’s highest ranking civil servant, says there’s no pressure to launch a long-awaited crewed mission around the moon following a new delay to the lunar fly-by.

The agency did not complete a practice countdown for a mission that would be the first to send people around the moon in more than 50 years.

After pre-launch testing revealed rocket issues, NASA has delayed the Artemis II launch until March. Here's the latest.

Officials say the delay will allow the launch team to conduct another practice countdown before committing four astronauts to humanity's first moonshot in more than half a century.

NASA completed the Artemis II wet dress rehearsal and is reviewing test data after fueling challenges, with March identified as the earliest possible launch opportunity.

NASA is preparing to launch its latest Artemis mission as a narrow launch window opens following delays caused by extreme cold weather. The US space agency has only a few days each month to send ...

NASA's wet dress rehearsal did not go as smoothly as planned. As a result, the Artemis II launch is now no earlier than March ...