Humans will likely die long before our planet does.
Redheads are said to experience pain differently than other people and require higher doses of pain medications, depending on the drug used. Why?
The sky's blueness isn't from reflecting the water. Instead, its color has to do with scattered light.
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.
The sun is Earth's closest star, yet its beauty is too intense to appreciate with the naked eye. Here are some of the most stunning solar images that our satellites and telescopes have captured.
Black holes can swallow stars, planets and even merge with other black holes, but could a massive one swallow the entire universe?
Nebulas — colorful clouds of expanding gas and dust — have long captivated stargazers with their beauty. Here are 25 of the most stunning nebulas in the universe.
The chemicals that make food spicy don't target taste receptors, but rather temperature receptors in the tongue.
There are different types of squalls, including a sudden windy cold front and a short-term burst of heavy snow and wind.
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?