An enigmatic group of fossil organisms has finally been identified—and is changing the story of how plants took root on land ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

A coalition led by the Planetary Society has voiced its support for Jared Isaacman, President Donald Trump's pick to lead ...

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

Long without a leader, NASA finds plenty of support among the space community for billionaire Jared Isaacman, including from ...

From woolly mammoths to giant sloths, via some lesser-known ice-age beasts like 'killer koalas', the visuals in this ...

Funding uncertainties are pushing U.S. space scientists out of the field and putting existing and future space missions on the chopping block.

This new understanding comes from a study by a team led by Rutgers University geodynamicist Yoshinori Miyazaki. The research ...

New research shows that Theia, the planet that collided with Earth and formed the Moon, was a rocky world born closer to the ...

Private data companies are providing everything from drought or pollution risk assessments to locations for untapped mineral ...

Two bacteriologists showed that mutations arise spontaneously in bacterial cultures, thereby disproving Jean-Baptiste Lamarck ...