Space junk, (noun, “sp-ACE Junk”) Space junk, also called space debris, refers to trash left in space by humans. This trash includes objects as large as abandoned satellites and as…

WASHINGTON, D.C. — If you’re outside during a heat wave in Texas, the shade of oak trees can be tempting. But when it’s really hot, levels of lung-irritating ozone and…

The knotted, intricately braided string was like none Sabine Hyland had ever seen. Made of human hair, it was part of an ancient device used by the Inca. These people…

You’re more likely to be struck by lightning than bitten by a shark. Millions of people swim in the seas each year. But an average of just 64 bites are…

Picture a shark. You might think of a great white stalking beachgoers in a movie. Or maybe a hammerhead, with its distinctive T-shaped noggin. Or the extinct megalodon, the largest…

Most of us don’t think too much about what’s in our pee. We go, we flush, we forget. But that wastes a golden opportunity, some scientists say. They’re finding new…

Heidy Martinez never dreamt of studying sharks. That changed during a study abroad trip in South Africa in college. She went cage diving with some classmates. That’s when divers view…

The sky abounds with tiny bits of solid or liquids known as aerosols. Some are flecks of black carbon or dust. Others are specks of sulfates or sea salt. All…

Transplant, (verb, “TRANS-plant”) Transplant means to move something from one place to another. For example, a gardener might transplant a small shrub from one side of their yard to another.…