Science

A year ago, the Food and Drug Administration announced new regulations allowing the sale of over-the-counter hearing aids and setting standards for their safety and effectiveness.That step — which was supposed to...

On a spring day over 66 million years ago, an asteroid slammed into the sea just off the coast of modern-day Mexico. Known as the Chicxulub impact, it set off a global...

The bulge on the side of Peggy Hudson’s belly was the size of a cantaloupe. And it was growing.“I was afraid it would burst,” said Ms. Hudson, 74, a retired airport baggage...

If you loathe cockroaches, you’re going to love the emerald jewel wasp.Females of the species Ampulex compressa, known also as emerald cockroach wasps, are less than an inch long, and decked out...

Why It Matters: Covid is still dangerous to some Americans.More than 1,200 people are dying of Covid each week, according to C.D.C. data. “That’s a travesty,” said Dr. David Kimberlin, a pediatrician...

Yellowstone National Park is a North American hot spot for wildlife. The park’s mountains, forests and meadows are home to the largest concentration of mammals in the lower 48 states, including the...

Campsites may also still be available along the zone of totality, but they are booking up fast.In Indiana, some campgrounds around Monroe Lake, near Bloomington, are already full, but campsites with a...

For biologists, menopause is baffling. If natural selection favors genes that produce more descendants, why don’t women remain fertile their entire lives? What’s the evolutionary benefit of living for so many years...

In 2021, it seemed as if Mars had a surprisingly big heart. Scientists had been using InSight, a robotic lander to study the planet’s insides. The spacecraft had listened to enough marsquakes...

My paddle slips gently through calm ocean water as the kayak glides toward the mouth of Morro Bay Harbor. I approach a sandbar covered in resting cormorants, as sea otters float in...