China Has Attempted What Might Be the First-Ever Orbital Refueling of a Satellite

The SJ-21 and SJ-25 satellites “merged” on July 2 and have remained together since then. [...]

The AI Boom Will Increase US Carbon Emissions—but It Doesn’t Have To

A new analysis finds that data centers’ energy demands will drastically increase power plant emissions over the next decade. Renewables, though, could cut them while helping keep prices from rising. [...]

The Pentagon Releases New Trove of Declassified UFO Files

The Defense Department has released a new trove of declassified documents about government UFO sitings. [...]

No sterile neutrinos after all, say MicroBooNE physicists

There's a less than 5 percent chance that earlier anomalies can be explained by fourth neutrino "flavor." [...]

US to pay TotalEnergies $1 billion to stop developing offshore wind in US

Payment reimburses the company for two leases, one for a massive 3 GW wind farm. [...]

Cosmic Voids May Contain the Universe’s Best Secrets

Once dismissed as empty expanses between galaxies, cosmic voids are becoming one of the most promising tools for probing the universe’s biggest mysteries. [...]

This Is the Most Detailed Image Yet of the Milky Way's Center

The Euclid space telescope's stunning photo of our galaxy's “crowded heart” captures more than 60 million stars. [...]

Trump Promised to ‘Drill, Baby, Drill.’ The New Rigs Are Nowhere to Be Found

With clean energy more cost-competitive than it once was, the White House’s oil-first strategy is faltering. [...]

A Collision with Space Debris Leaves 3 Chinese Astronauts Stranded in Orbit

The only craft docked at Tiangong space station has been damaged and “does not meet the release conditions for a safe manned return.” [...]