What evidence of this planet still exists on Earth today? Could there be life deep inside the Earth’s surface? And could that life be an advanced civilization of humanoid aliens? Would it be ...

Unusual material discovered deep within the center of the Earth are the remains of an ancient planet that collided with Earth billions of years ago, scientists have found. The blobs of strange ...

From the discovery of gravity to the first mission to defend Earth from an asteroid, here are the most important physics ...

How do they differ from the ocean? A geophysicist breaks it down for us. An asteroid is going to circle our planet for two months this autumn before going on its way. A facility near the Icelandic ...

The team found that, by including a softer layer at the base of the moon's mantle, it was easier to reproduce the observed ...

And Tomkins and his colleagues say the same thing probably happened to an asteroid that passed too close to Earth, inside what’s called the Roche Limit. Our planet’s gravity ripped the ...

The coldest place on Earth is a bone-chilling research station ... There has been a lot written about the hottest place on the planet, with Furnace Creek in Death Valley, California, holding ...

The Hranice Abyss — or "Hranická propast," in Czech — is the deepest known freshwater cave in the world. Geologists think it ...

ALIEN life could be lurking under frozen water to survive on Mars, Nasa scientists have suggested. Living on the Red Planet ...

Radioactive elements like uranium and hafnium are trapped inside the minerals that make up these objects when they ... the object that hit Earth was made up of the same mixture of meteorites as the ...

"Planet killers" are mostly found in the asteroid belt between Jupiter and Mars while some follow orbits that cross the Earth’s path with the Sun. They can travel at huge speeds of over 45,000 ...