Following the first-of-its-kind medical evacuation from space last month, the new arrivals, known as Crew-12, will bring the space station up to its standard occupancy of seven people.
Known as the endangerment finding, the decision is the legal framework that allows the EPA to regulate emissions. Its reversal could upend many climate change policies.
A year ago, federal support for scientific research appeared to be crumbling. But thanks to Congress and several lawsuits, scientists' worst fears haven't come to pass.
The Artemis II mission is set to launch four astronauts on a trip around the moon no earlier than Sunday. But first, NASA must fuel its rocket and run through the full launch day process.
Four astronauts are blazing NASA's trail back to the moon. Their mission, which could launch Feb. 8, will take them farther from Earth than humanity has ever gone before.
Poisoning caused by too much of the popular nutrient is rare, but cases are ticking up. Experts warn that people may not be aware they're getting too much.