arstechnica.com / .arstechnica-com-science

It's a closely watched test of whether corporate alliances on climate efforts violate antitrust laws.

Firefly Aerospace reveals why its Alpha booster exploded after launch in April.

The species's boundaries in North America seem to have been fairly fluid.

"Once a species enters, they never leave," interior secretary says. But there's more to the story.

A species known only by a single rib turns out to be covered with meter-long spikes.

This was the first successful flight of SpaceX's second-generation Starship after three failures.

Collapsing gas clouds in the early universe may have formed lower-mass stars as well.

It's not just you. Survey says: "Twitter sucks now and all the cool kids are moving to Bluesky"

"I don't want to gamble on which major city or two we lose in a scenario like that."

Half of a year of data shows that the solar boom is not slowing down.