A newly discovered space rock will zoom safely by Earth later today (Oct. 15) at only about a quarter of the average distance ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

MIT scientists have discovered ancient rock samples from Greenland, Canada, and Hawaii exhibiting a rare potassium-40 deficit ...

Scientists at MIT and elsewhere have discovered extremely rare remnants of "proto Earth," which formed about 4.5 billion ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

Using 11 years of magnetic field measurements from the European Space Agency's Swarm satellite constellation, scientists have ...

This blue, marble-like planet looks just like Earth. But only five seconds on this hostile death-orb would kill you.

Space scientists look back on three decades of exoplanet discoveries—from rows of massive ‘super-Earths‘ to worlds with ...

For almost a decade, astronomers have been searching for a ninth planet in the solar system. Recently, new evidence of ...

Researchers are discussing 2025 PN7, a small celestial body that's following a similar orbital path to our planet's without ...

Webb Telescope spots a carbon-rich disk around a distant planet, CT Cha b, offering rare clues to how moons may form.