It's one of many bold claims made by the late physicist Stephen Hawking in his final book, "Brief Answers to the Big Questions," published posthumously.

The first animal to evolve on Earth was probably a sponge that existed around 640 million years ago.

The Billion Oyster Project collects used restaurant oyster shells and uses them to build oyster reefs to shore up New York harbors.

This foliage map from SmokeyMountains.com is a handy, up-to-date guide to fall leaf season all over the country.

Archaeologists in Bulgaria have unearthed two skeletons pierced through the chest with iron rods to keep them from becoming vampires.

In "Ay, Mariposa," conservation filmmakers highlight the people, animals, and fragile habitats impacted by the barrier at the border.

Egmont Key National Wildlife Refuge is rich with wildlife and history and it's under siege from the waters that surround it. And it's only to get worse.

Leafcutter bees emerge from egg chambers composed of pollen and nectar rolled up in a leaf.

A spacecraft launch in Kazakhstan turned into a scary situation as a booster malfunctioned mid-launch, sending the space crew into ballistic decent.

Rare endangered Kemp's ridley sea turtles hatch on New York City beach, but they normally nest in the Gulf of Mexico.

Hurricane Michael was a powerful Category 4 hurricane when it hit the Florida Panhandle. These photos tell the initial story.

Some researchers are skeptical, but some people believe animals are psychic about storms and other natural disasters.

Up to 1,000 wild horses will be rounded up from federal land in northern California, and some of them may end up in slaughterhouses.

Experts estimate that there are as many as 170 moons orbiting the eight planets of our section of the galaxy.

You may not realize it, but seaweed is utterly essential to our world.

The 4-acre Chernobyl solar power facility can supply enough power for a medium-sized village, or about 2,000 apartments.

SpaceX launches a new satellite SAOCOM 1A into space, creating beautiful late-night display.

Obama designated more national monuments than any other president in U.S. history.

Ecuador offers a little of everything that hummingbirds need to thrive, which is why more than 100 species of the tiny birds call it home.

Stone Age villages on the Orkney Islands are older than Stonehenge, but archaeologists fear that they won't be around for much longer.