Nell Greenfieldboyce

You'd think that after hundreds of years of watching total solar eclipses, scientists would know all they'd need to about that particular phenomenon. You'd be wrong.

A total solar eclipse is one of the most magnificent sights you can ever see. But you need the right kind of eye protection, and some of what's being sold out there isn't safe.

There's a push in Congress to rewrite how science gets used in regulation — and that has researchers worried. The industry-backed bill would let business nitpick raw data and ignore valid results.

Most of the 56,000 eyes sent to the little lab in Wisconsin come from vets who want help diagnosing dogs, cats and horses. But the repository also has eyes from sloths, elephant seals and dragonflies.

In 1969 it was the orbiting home and refuge for the first astronauts who walked on the moon. Today, after decades on display in a Smithsonian museum, the module is being restored for a national tour.

Three genetic changes could be enough to make a bird flu strain that's already killing some people in China highly contagious. Are experiments with a deliberately mutated version too risky?

The planet called KELT-9b is around three times more massive than Jupiter. It orbits a blue star about 650 light-years away from Earth that's nearly twice as hot as our own sun.

Predators that attacked the clay caterpillars left telltale bite marks, which were later analyzed to help figure the critter's risk of getting eaten. That analysis revealed a striking pattern.

Common blood tests for lead can give falsely-low results in certain cases, according to a new warning from the Food and Drug Administration.

"That's like setting three small cars on top of the jaws of a T. rex — that's basically what was pushing down," a researcher says. Humans bite with a measly 200 pounds of force.

Police departments in about 95 percent of cities nationally have put wearable cameras on officers, or soon plan to. But do these body cameras make neighborhoods safer? Scientists want to find out.

Scientists recently tracked eight baby whales using special sound and movement recorders. The sounds the babies made turned out to be far different from the eerie songs of adult male humpbacks.

Thousands of scientists and their supporters took to the streets to advocate for public support for science and technology today in Washington, D.C., and other cities around the country.

Don't call it empathy, scientists say. These termite-eating ants only retrieve injured comrades on the way home from a hunt, not before. But the hurt ants do recover better at home — to fight again.

The controversial study of climate engineering — aka deliberately messing with Earth's temperature — was finally starting to regain a measure of respectability. And then came President Trump.

Labor statistics specialists under George W. Bush and Barack Obama warn that if the safety regulation is repealed, record keeping on worker injuries will become less accurate and less reliable.

The White House's proposed federal budget cuts everything from research to regulation, and makes clear that the administration doesn't view climate change as a priority.

Charles Byrne was about 7 feet 7 inches tall, an 18th century marvel whose height came from a pituitary tumor. He asked for privacy in death, but his skeleton is still on display in a London museum.

SpaceX claims it will launch the first ever private moon mission in 2018, which would send people to the moon for the first time in 45 years. The announcement may signify the start of a new race to the moon, this time between NASA and the private space industry.

A "March for Science" is set for April 22 in Washington, D.C., to show support for evidence-based public policy. But some worry the march will be seen as partisan, and may even undermine sound policy.