Just when things couldn't get any crazier in the US, scientists have discovered that the underside of the Earth's crust is ...

The quartet of planets — named b, c, d and e — are some of the smallest rocky worlds ever detected. NASA says each has a mass ...

There are a lot of satellites, and a lot of trash, around our planet — and the quantities are only going to get higher.

Understanding exoplanet evolution could help solve the mystery of the 'hot Neptune desert.' As astronomers delve deeper into the diversity of worlds orbiting distant stars, a new study suggests ...

Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an ...

A group of astronauts whizzing around Earth from orbit are getting some pretty spectacular views of our planet's poles – and ...

It’s not much of a stretch to say that Earth’s inner structure, especially the innermost spherical core, has stupefied ...

Venus will pass between the Earth and sun during what’s called an inferior conjunction. But don’t plan on seeing the linkup.

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

Modern continental rocks carry chemical signatures from the very start of our planet’s history, challenging current theories ...

Researchers say it’s particularly worrisome for agriculture, and hope their work will strengthen efforts to reduce water ...