“We usually think of water as so benign, but when it’s divided in the form of little droplets, water is highly reactive,” said Richard Zare, describing a line of laboratory work that moves electricity ...

For over a century astronomers have speculated that comets could have delivered organic molecules necessary for life to Earth ...

A study suggests comets hit Earth too fast and steeply for fragile organic molecules to survive, making delivery of life’s ...

Sometimes what is missing can tell us more about the story of Earth than what we can see.” Earth’s geological history is like ...

Turns out, Earth may be more of a local kid than scientists thought. A new study from ETH Zurich suggests the material that built our planet came almost entirely from the inner Solar System, rather ...

Scientists have identified a major turning point in Earth's geological history, when the processes shaping the planet's crust ...

New research from the University of Cambridge contradicts a long-standing theory that comets seeded building blocks of life ...

Hydrogen cyanide was crucial for early Earth chemistry. A new study says comets almost certainly didn’t deliver it like we’d ...

With water covering the majority of our planet, scientists have been wading through ideas to answer a fundamental question: Where did it all come from? A popular theory suggests asteroids or comets ...

"Outgrowth of the LPI Conference on the Origin of the Earth, which was held in Berkeley, California in December 1988"--Preface. 3D solar nebula models : implications for earth origin / A.P. Boss -- ...

They found that around half the Earth's inventory of the volatile element zinc came from asteroids originating in the outer Solar System -- the part beyond the asteroid belt that includes the planets ...