Here are ten animals with the highest populations on Earth. Some are quite familiar. You have never heard of some others, though.

Vast, quasi-circular features on Venus's surface may reveal that the planet has ongoing tectonics, according to new research ...

A failed Soviet spacecraft that was mistakenly trapped in Earth orbit more than 50 years ago is expected to finally crash ...

A new study reveals that less than 0.001% of the deep seafloor has been visually recorded, exposing major gaps in ocean ...

Earth's surface is mostly deep ocean, but a new study reveals just how little we have glimpsed of the floor of our planet's ...

When we think about asteroids that could threaten Earth, we often imagine massive, city-sized rocks hurtling through space. But what if the real danger comes from much smaller, barely detectable ones?

Astronomers believe that Planet Nine could be 5-7 times the size of Earth and situated more than 200 times farther from the sun than our planet. It is believed to orbit the Sun in 10,000 to 20,000 ...

The secret to their massive size might lie hidden in the cooling climate after a period of extreme warmth. About 92 million years ago, Earth experienced the Cretaceous Thermal Maximum, a period ...

Mars, one of our closest planetary neighbors, has fascinated people for hundreds of years, partly because it is so similar to ...

Before humans ever appeared and not long after the dinosaurs went extinct, a new giant rose to the top of the food chain. It didn’t fly or roar– it slithered, and it did so with incredible ...

A new study finds that humans have visually explored just 0.001 per cent of the deep seafloor - leaving vast areas unknown ...