Can plasma from recovered COVID-19 patients treat the sick?

Since March 28, at least 11 patients critically ill with COVID-19 at hospitals in New York City and Houston became…

Beets bleed red but a chemistry tweak can create a blue hue

Beet juice is red. Now chemists turned it blue. It might have potential for consumers like you. Natural colorings for…

The U.S. has resisted the metric system for more than 50 years

Ten years to metric, Science News, April 4, 1970 –  Australia is taking its first brisk steps toward conversion to…

Just breathing or talking may be enough to spread COVID-19 after all

The coronavirus that causes COVID-19 may spread through the air in tiny particles that infected people exhale during normal breathing…

Mice’s facial expressions can reveal a wide range of emotions

Although it’s tricky for us humans to see, mouse feelings are written all over their furry little faces. With machine…

Southern Africa may have hosted a hominid transition 2 million years ago

Members of three different hominid lines clustered at the bottom of Africa around 2 million years ago, signaling an evolutionary…

How large a gathering is too large during the coronavirus pandemic?

A question has perplexed public officials trying to curb the COVID-19 pandemic: How large of a group of people is…

Roughly 90 million years ago, a rainforest grew near the South Pole

Once upon a time, there was a swampy rainforest near the bottom of the world. Buried sediment extracted from the…

How coronavirus control measures could affect its global death toll

When the U.S. White House coronavirus task force announced that social distancing needed to continue through April, it cited a…

Lucy’s species heralded the rise of long childhoods in hominids

Lucy’s kind had small, chimplike brains that, nevertheless, grew at a slow, humanlike pace. This discovery, reported April 1 in…