NASA's Artemis II mission completes a critical engine burn, propelling the Orion spacecraft and its four-person crew out of Earth orbit toward the moon.

NASA's Artemis II astronauts will spend about 24 hours orbiting the Earth and running checks on their spacecraft and life support systems before heading to the moon.

When a reactor’s radioactive core undergoes nuclear fission, its atoms split and release heat, which then turns the water to steam. That steam rushes through the machine at high pressure, spinning turbines to generate electricity destined for the grid, according to the association. In space, the process gets trickier.

The U.S. space agency launched a lunar flyby Wednesday, but Beijing is pursuing its own space program with formidable focus. Here’s what we know about it, in photos and videos.

As NASA prepares for its next mission to the moon, one Atlanta university is drawing attention for its growing role in space exploration.

From Mercury & Apollo Missions to the Space Shuttle Program, Mars Rover Landings, & Artemis II. NASA officials held a news conference at the Kennedy Space Center in Florida to highlight progress on the upcoming Artem… “The ability to turn around our ...

NASA races to build a $20 billion lunar base as China and Russia advance moon ambitions, with experts warning China holds the advantage in space.

NASA’s Space Launch System, the agency’s flagship rocket designed to carry astronauts back to the Moon under the Artemis program, stands 322 feet tall in its Block 1 configuration. That height exceeds the Statue of Liberty and rivals many mid-rise office towers found in American cities.