The death row inmate has asked the U.S. Supreme Court to halt his execution, pointing to a codefendant’s confession in the ...

Nature is replete with slender filaments that bend and coil—from climbing grape vines, to folded proteins, to elephant trunks that can pick up a peanut but also take down a tree.

Sam Altman promised to be a responsible steward of artificial intelligence, putting humanity’s best interests first. But new interviews and closely guarded documents shed light on persistent doubts ...