With Artemis II, SLS could become the most powerful rocket ever to launch humans. Its four main engines burn roughly 700,000 gallons of ultra-cold fuel, producing enough oomph to keep eight Boeing 747s aloft. Future versions of SLS, if they come to fruition, could deliver even greater power.

Despite the ongoing government shutdown, NASA managed to complete a major milestone in its effort to send astronauts back to the moon. Last week, teams completed the stacking of the Orion spacecraft atop the Space Launch System rocket at Kennedy Space ...

A fully stacked SLS rocket is inside high bay 3 of Kennedy Space Center's Vehicle Assembly Building, where it is being prepared to roll out to LC-39B next week. Credit: Joel Kowsky/NASA CAPE CANAVERAL—NASA is on track to roll out its second Space Launch ...

Four astronauts are on the verge of becoming the first humans to venture near the moon in more than half a century since NASA's iconic Apollo era came to an end. As early as February, the crew of a mission known as Artemis 2 will board the U.S. space ...