
Can black holes send information back in time?
Extremely curved spacetime can warp cause and effect, creating channels for backward communication

Can black holes send information back in time?
Extremely curved spacetime can warp cause and effect, creating channels for backward communication
Meet LEV-2, a baseball-sized and absurdly cute moon robot
Inside the massive underground salt caves where the U.S. stashes its oil
What Disclosure Day gets wrong about the search for aliens
Today’s Killer Sudoku

Science Quiz: Who claims Antarctica?
Scientists need more snapshots of shooting stars—and you can help
Disclosure Day raises a big question: How do you talk to aliens?

Quantum computing is reaching its make-or-break moment
What’s a quantum computer good for, anyway?
NASA’s Artemis era may finally solve three major moon mysteries
Create as many words as you can!
Stretch your math muscles with these puzzles.

Why we'll never live in space
The puzzle of the first black holes
What if we never find dark matter?
Inside the high-stakes effort to bring natural grass to World Cup stadiums
World Cup kicks off amid outbreak tracking as Mars mission ends and AI fights heat up
Inside the multiyear effort to rename PCOS