Technology

Machines—like people—learn best when tasks are just hard enough

Two cameras and light-emitting diode lights enable communication

Congress authorizes ramp up in AI spending and backs planning for a national cloud computing resource

So-called Hebbian rules could improve language translation, self- driving cars

Artificial intelligence program can even silence background noises on Zoom calls

Approach could speed up search and rescue missions and forest surveys

Beetle-inspired robot proves nimble and durable in flight

Plan calls for a subtle but crucial shift toward applied research in Department of Energy fusion program

In milestone, software predictions finally match structures calculated from experimental data

Intense x-ray beams detect unusual artifact and a misleading portrait

Scientists engineer new material to help craft nimble, multipurpose machines

New flight patterns cut survey time from 2 days to just 3 hours

Researchers worried for future of iconic radio telescope after second cable tears through its dish

New semiconductor lasers work with small, portable coolers, enabling applications outside laboratories

Portuguese-language videos remain on YouTube, despite platform’s pledge to limit conspiracy theories