Why Are Humans Afraid Of The Dark? An Evolutionary Biologist Explains The Ancient Fear We Can’t Shake

By the time you tell yourself there’s nothing in the dark alley, your amygdala has already disagreed. Here’s why, according to evolutionary research.

20 Years Of Priority Review Vouchers, A Tool For Spurring Needed Drugs

If the FDA approves a drug for a neglected tropical disease, the company gets a voucher that accelerates review of another drug. This remains controversial.

Comet Tracker: Monday Brings Best Chance To See A Comet And Meteors

Comet Pan-STARRS, also known as comet C/2025 R3 (Pan-STARRS), just got closest to the sun and should still be visible from the Northern Hemisphere on Monday, April 20.

Northern Lights Forecast: 20 States May See Aurora Saturday Night

The northern lights may be visible overnight from up to 20 northern U.S. states on Saturday, April 18, into Sunday, April 19, 2026, during a G1 or G2 geomagnetic storm.

Why Do Humans Cry? An Evolutionary Biologist Explains Its True Purpose

Research suggests that crying is not a sign of weakness, but one of the most sophisticated social technologies in the natural world.

1 Thing You Need More Than Love In Your Relationship—By A Psychologist

Love gets all the credit. But new research suggests what actually holds couples together is something quieter, and far more specific.

Meet The Bird That Kills Cobras With A Kick To The Face — A Biologist Explains

Not all birds of prey hunt from the sky. This bird reveals how an extreme environment is all it takes to reshape anatomy, behavior and survival itself.

The ‘Lonely Runner’ Problem Only Appears Simple

Take a group of runners circling a track at unique, constant paces. Answering the question of how many will always end up running alone, no matter their speed, has vexed mathematicians for decades.

Final Chance To See Comet Pan-STARRS At Its Brightest This Sunday — When To Look

Comet Pan-STARRS, also known as comet C/2025 R3 (Pan-STARRS), will get closest to the sun on Sunday, April 19 — and should reach its brightest. Here’s how to see it.

3 Reasons Boredom Is A Good Sign In Relationships, By A Psychologist

What many couples label as boredom often points to something healthy. Here are three ways to recognize it in your relationship, based on psychological research.