Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...

"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

The object, the latest “quasi-moon” detected by astronomers, could be with us for almost another 60 years. By Robin George Andrews The Earth stands alone in the solar system as a habitable world, as ...

For the next half-century, Earth will have a new celestial companion. A small asteroid, officially designated 2025 PN7, has ...

The sun's gravity will pull the moon farther away from Earth than it's been in over five years on Nov. 19, though it'll be ...

New modeling of the early solar system is reshaping the familiar story of how the Moon formed, suggesting that Earth and the ...

The apparent motion of a quasi-moon around the Earth is a happenstance. It is due to resonance in orbits. As the Earth does one orbit around the sun, so do the quasi-satellites. So they seem to be ...

Earth has a newly discovered—albeit temporary—companion in its journey around the sun. In research published this month in Research Notes of the AAS, a non-peer reviewed publication from the American ...

Earth has picked up a new traveling companion – an asteroid named 2025 PN7 that now moves through space in step with us. This ...