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Life

Near-invincible tardigrades may see only in black and white

A genetic analysis suggests that water bears don’t have light-sensing proteins to detect ultraviolet light or color.

Astronomy

The tiny dot in this image may be the first look at exomoons in the making

New ALMA observations offer some of the strongest evidence yet that planets around other stars have moons.

Health & Medicine

Why the CDC says it’s crucial to start wearing masks indoors again

While unvaccinated people are driving the spread of the coronavirus, vaccinated people infected with the delta variant may also easily transmit it.

Animals

How some lizards breathe underwater

Researchers have figured out how some anole lizards can stay underwater for as long as 18 minutes.