Cockroaches have a reputation for being indestructible. But they may not be as totally immune to radiation as people think.

BIG QUESTIONS
Though the gray band is safe to eat, it’s not particularly appetizing.
While 100 percent humidity might seem to suggest there should be pure rain showers, there may not even be a hint of drizzle. So what does it mean to reach peak humidity?
The stringy white glob hanging off an egg yolk is a chalaza. Here’s what it does and when you should remove it.
Gas stations know what they’re doing when they play Bach at the pump.
Cracking your car’s rear window can be a highly unpleasant experience—and physics is to blame.
No one wants to discover a freezer full of spoiled ice cream. Here’s how to tell if the creamy treat is still good—and how to make sure it’s safe to eat for as long as possible.
You can’t actually feel your blood pressure, but it’s one of the body’s most important indicators of cardiovascular health. Here’s the lowdown on how blood pressure works—and what it means for your overall wellness.
Cutting down on syllables is just one reason ‘cop’ became synonymous with ‘police officer.’
Where this bizarre expression came from, how its meaning has evolved, and where you might have seen it used.
Tens of thousands of fallout shelter signs, with three yellow triangles in a black circle, are visible on building façades today. They serve as grim reminders of the hottest flashes of the Cold War. So why are they still around?
If you have the time, opting for a quick checkout might save you a bit of money and make someone else’s day a whole lot smoother.
Baby viewing windows were once a staple of hospital maternity wards across the country, but now they feel like a relic from a bygone era. Read on to learn about their history—and the real reasons why they vanished.
Feeling anxious can be normal and sometimes even healthy. Missing out on life because of that anxiety is not.
Confused about pupae, chrysalises, and cocoons? Discover the key differences between these metamorphic terms.