Kenyan President William Ruto put the flood-ravaged country on high alert on Friday and postponed the reopening of schools indefinitely as the nation braced for its first-ever cyclone.

With dancing ribbons of light visible in the sky, a team of researchers flew on a series of scenic and sometimes stormy flights into the cold unknown, trying to learn more about why one of the most frigid places on Earth is warming at a feverish pace.

When a grave was discovered in Wels 20 years ago, the find was thought to be an early medieval double burial of a married couple and a horse due to its unusual features. Only now could the biological gender and family relationships of those buried be clarified using the most modern archaeological technologies.

On an October morning in 2023, a chemical explosion detonated in a tunnel under the Nevada desert was the launch of the next set of experiments by the National Nuclear Security Administration, with the goal to improve detection of low-yield nuclear explosions around the world.

Cowee Creek, Brabazon Range, Upper Pederson Lagoon—they mark the sites of recent lake tsunamis, a phenomenon that is increasingly common in Alaska, British Columbia and other regions with mountain glaciers.

A team of biologists and geneticists at the University of Toronto at Mississauga has found a possible genetic basis for a central player in group connectedness. In their study, published in the journal Nature Communications, the group conducted genetic experiments with fruit flies.