Crystals hidden in Australia’s oldest rocks have revealed new clues about how Earth and the Moon formed. The study suggests ...

About 4.6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity. The Sun, planets, and eventually Earth formed out of the cloud. But when did ...

Earth is often described as a water world, but how that water arrived has never been settled. For years, the focus has rested ...

Earth’s deep interior may hold water equal to today’s oceans, challenging long-held views of how the planet became habitable.

A bright fireball streaked across the sky above mountains, glaciers and spruce forest near the town of Revelstoke in British Columbia, Canada, on the evening of March 31, 1965. Fragments of this ...

Long before Earth formed, tiny mineral grains were already drifting through space, forged in the final breaths of dying stars ...

Where did all the water come from? Water, water everywhere. It covers 70 percent of Earth’s surface and earns it the nickname “the blue planet.” And yet… where did it come from? How is it so abundant ...

How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon. When you purchase through links on our site, we may earn an affiliate ...