Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

For decades, noble gases like helium have been considered chemically inert, refusing to form stable bonds under normal conditions. But new research challenges this assumption, revealing that helium ...

Deep within Earth’s mantle lie two enormous, continent-sized structures known as LLVPs. Scientists once believed these ...

YR4 has a very small chance of striking Earth when its orbit briefly intersects our planet's in December 2032.

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long ...

Scientists discovered that volcanic eruptions in India’s Deccan Traps 66 million years ago released gases that altered ...

Alien: Earth is easily one of this year’s most anticipated TV premieres. Despite this, apart from a brief teaser trailer and a few sizzle reel shots, we know next to nothing about Noah Hawley’s ...

It may be fun to watch astronauts float around inside the International Space Station, but the absence of gravity has its ...

Researchers from Japan and Taiwan reveal for the first time that helium, usually considered chemically inert, can bond with iron under high pressures. They used a laser-heated diamond anvil cell to ...

This story appears in the August 2018 issue of National Geographic magazine. Indonesia has 127 active volcanoes. Only the U.S. (168) and Russia (144) have more. Essential packing list: We landed ...