Donavyn Coffey

Humans will likely die long before our planet does.

Why are most planets and moons (mostly) spherical?

The sky's blueness isn't from reflecting the water. Instead, its color has to do with scattered light.

Here's the science behind why some people hate eating cilantro, which is also known as coriander.

The food giant Del Monte has created a genetically engineered pink pineapple that owes its rosy hue to higher concentrations of a pigment called lycopene.

Cats love tuna because it contains high concentrations of chemicals that make its umami taste receptors light up.

What are mirages and why does this optical phenomenon cause us to see reality differently?

Is it fact or folklore that peeing on a jellyfish sting is a good way to treat it?

Black holes can swallow stars, planets and even merge with other black holes, but could a massive one swallow the entire universe?

Water extinguishes fire, but it doesn't act on the flames themselves.

And for that matter, could our universe be inside a black hole?

Five missions have been fatal to space travelers.

The chemicals that make food spicy don't target taste receptors, but rather temperature receptors in the tongue.

And what can happen to your body if you stay awake way past your bedtime?

To the naked eye, the night sky reveals only one moon. But how many moons have ever orbited Earth?

The brain doesn't have its own pain receptors, so why do headaches hurt so much?

What happens to wild horses that don't have shoes?

Smelling salts are found in Victorian novels to rouse fainting women and on the sports field to possibly help athletes. But how do they work?