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

What is so spectacular about this Martian aurora discovery, considering that scientists have captured and reported several ...

This week, an old astronomical controversy is renewed as researchers present new evidence for a hidden "Planet X" in our ...

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 ...

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

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?

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 ...

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

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