The Space Launch System rocket, which is being used by Artemis II, is unusual in that Congress, frustrated when President Obama canceled an earlier return-to-the-moon program called Constellation, gave detailed specifications for what it wanted NASA to build. The pieces of S.L.S. are, in large part, a remix of components of the space shuttles.

A strong solar flare emitted from the sun just days before the Artemis II launch, but NASA said they aren't concerned about it.

With the launch of Artemis II planned in a few weeks, NASA is ready to monitor the sun during the mission in order to protect the astronauts while in space.

NASA is making final preparations for a historic return to the Moon more than 50 years after the Apollo missions. The US space agency is set to blast a rocket with four astronauts onboard up and

NASA's DART mission didn’t just change the orbit of Dimorphos, the asteroid it hit. It changed the orbit of the larger Didymos around the sun.

A Southwest Research Institute-led study found that protons and heavy ions react differently to solar magnetic reconnection events, revealing a more complex magnetic engine powering the solar wind. Magnetic reconnection converts magnetic energy into explosive kinetic energy,

Humans are heading back to the Moon. Discover 22 incredible facts about Artemis II – from record-breaking speeds to lunar firsts.