Features

People report vivid dreams during rapid-eye-movement sleep. But is this sleep stage really the only time we dream?

This swimming sea cucumber looks like a chicken carcass, eats poop floating in the water and uses defecation as a means of propulsion.

There are many theories for why cats and dogs eat grass, and some could be "old wives' tales."

Science news this week Aug. 9, 2025: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

A woman went to the hospital several times with the feeling that something was stuck in her eye. It turned out to be parasites.

Earth from space A 2024 astronaut photo shows a rare "sunglint" shining off Lake Iro and a nearby zig-zagging river in Chad. The shimmering bodies of water were likely both shaped by an ancient meteor impact.

Two brooches from Denmark are unique examples of Viking Age goldwork that includes Christian and Norse designs.

The vast majority of polished diamonds are clear and sparkly, but some come in unexpected colors like blue, green and even pink. So why are some diamonds different colors?

Telescopes have come a long way since the first one was invented in 1608. So what's the most powerful telescope operating today, and how far can it see?

Aye-ayes are remarkable thanks to their extra-long, bony middle fingers, which they use to locate grubs and pick their noses.