When Earth passes through the trail of debris left behind by a comet, bits of that debris catch fire in our atmosphere and streak across the sky at a blazing 3,000 degrees Fahrenheit. This week, you c ...

The hippocampus is a seahorse-shaped structure that resides deep in your brain and functions like an internal GPS. It helps us figure out where we are, if we’ve been there before, and where we should ...

High on Mount Graham in Arizona, tucked into a forest of trees, there’s a telescope. It’s one of several at the Mount Graham International Observatory. But this one is especially concerned with the he ...

Insurers are regarded as defenders of health care dollars, but the case of David Williams shows how they allow costs to rise. Ever since her 14-year marriage imploded in financial chaos and a protecti ...

Fifty years ago, human beings stepped on the moon for the first time. Some 650 million people around the world watched the historic landing on July 20, 1969, and heard astronaut Neil Armstrong say “.. ...

Preliminary data shows that drug overdose deaths may have fallen by 5 percent in 2018 — the first drop in overdose deaths since the country’s opioid epidemic began in the 1990s. The data, first report ...