20 of the best conspiracy theories
Conspiracy theories that have taken hold range from a faked moon landing to Barack Obama's birthplace to chemtrails.
Conspiracy theories that have taken hold range from a faked moon landing to Barack Obama's birthplace to chemtrails.
As July Fourth celebrations take off across the U.S., so will the number of firework-related accidents and hospital visits.
Experts believe the upcoming solar maximum could be more active and arrive sooner than previously expected. Here are some of the signs indicating they are right.
From the Mediterranean to North America, there's a lot of evidence that the day the 'sun stands still' has been important to humans for thousands of years.
Zombie movies have it all wrong. Parasites are the real zombie killers.
A gallery of images of the Nazca Lines in Peru.
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.
Scientists are discovering and resurrecting ancient viruses trapped in permafrost and frozen remains. Here are 8 'zombie' viruses that scientists have pulled from the permafrost.
From causing muscle loss to raising the risk of blood clots, long-haul space missions can have a profound impact on the human body.
From a dummy-driven Tesla, to a giant disco ball, to U.S. presidents' hair, here are some of the weirdest things humans have put into space.
Which of the body's organs weigh the most? The answer may surprise you.
Here's a countdown of 10 common skin conditions, some benign and others life-threatening.
Europe's glaciers and ice patches are an enormous deep freezer for artifacts. Here is a countdown of 25 of the most fascinating objects revealed by Europe's melting ice.
Throughout the ages, humans have built temples dedicated to deities. Here are 31 of the most famous monumental temples from around the world.
The fossil record is filled with strange marine animals that would look like sea monsters if they were alive today.
From weed pollen to mold, these are the five most common culprits behind seasonal allergies in the U.S.
Reference Earthquakes, hurricanes and volcanoes have taken countless lives and caused immeasurable damage throughout history.
To celebrate Pi Day, we asked several mathematicians to tell us their favorite non-pi numbers. Here are some of their answers.