Science

Despite strong levels of vaccination among older people, Covid killed them at vastly higher rates during this winter’s Omicron wave than it did last year, preying on long delays since their last...

Twenty million years ago, a predator with a mouth like a subway door and teeth the size of your palm roamed the seas. The megalodon, the largest shark ever to live on...

Roses are red. Neptune’s deep blue.Why, scientists wondered, isn’t Uranus too?It’s an intriguing question. Uranus and Neptune, the two outermost planets of our solar system, are both ice giants — cold worlds...

For four years under President Donald J. Trump, the United States all but stopped trying to combat climate change at the federal level. Mr. Trump is no longer in office, but his...

“He preguntado a mis colegas de todo el mundo, y muchos de ellos me dicen que sí, que están observando una tendencia parecida”, comentó Paul Kaplowitz, profesor emérito de Pediatría en el...

A never-before-seen meteor shower may light up the skies with untold numbers of brilliant streaks the evening of Monday night into Tuesday morning.Or the event could fizzle out and be a dud.Those...

A never-before-seen meteor shower may light up the skies with untold numbers of brilliant streaks the evening of Monday night into Tuesday morning.Or the event could fizzle out and be a dud.Those...

It’s time for New Yorkers to get very excited about the setting sun.That’s because Manhattanhenge is upon us. It can produce, when the weather cooperates, four of the most striking sunsets of...

MDMA-assisted treatment for post-traumatic stress disorder “represents real hope for long-term healing,” health experts say.

Tests also differ in their sensitivity, and people differ in how they perform them. “Some people do a swab test and it’s like they barely touch their nose,” Dr. Gordon said. “Whereas...