Arctic Greening

Entire space programs have been canceled after a failure in the reentry phase. In the final test for Artemis II, astronauts will travel at 32 times the speed of sound as they return from the moon.

The astronauts will arrive about 10,300 kilometers beyond our satellite, breaking all previous records for distance from Earth. But how was their route chosen?

The GPS Next-Generation Operational Control System was due for completion in 2016. Ten years later, the software for controlling the military’s GPS satellites still doesn’t work.

The moon is not just a barren rock orbiting the Earth. The Artemis missions could answer the great unknowns that the satellite holds.

As Washington wrangles over the future of federal employees’ pay, here are some ideas for passing the time.

Splashdown for the Artemis II crew is scheduled for Friday evening, and NASA will livestream the historic homecoming.

The moon gets hit by space debris all the time, but some of it is so large that the impact generates light that can be seen thousands of kilometers away.

The mission commander’s email inbox failed during the journey to the moon. Have they tried turning the computer off and back on again?

The crew of Artemis II will not descend to the moon, but their capsule will fly over the far side of its surface.

Robert F. Kennedy Jr.’s sweeping changes to federal vaccine guidance are paused for now. But even if they’re reversed, lasting damage has already been done.

Who needs a supercomputer when you can calculate pi with a box of sewing needles?

The FCC just banned the sale of new consumer-grade Wi-Fi routers manufactured outside the US. Here’s what it means for you.