It must have cleared all other celestial bodies, except its own moons, from its orbit.

With eight billion people, we use a lot of the Earth's resources in ways that are likely unsustainable. Klaus Hubacek, ...

The asteroid, named 2024 VX3, will pass us at a distance of 92,100 miles, closer than the moon's 238,900-mile orbit.

Planets, moons, and the quest for life beyond earth As we explore the vast expanse of space, we embark on a journey that ...

The Roman Coronagraph Instrument, designed to block starlight, will help scientists detect faint light from exoplanets.

In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...

Much of the knowledge about Uranus was gleaned when NASA's robotic spacecraft Voyager 2 conducted a five-day flyby in 1986 ...

The Arecibo message contained an image of a man only. But what might seem a sexist choice deserves a more subtle ...

The Nancy Grace Roman Space Telescope is a NASA observatory designed to settle key questions on exoplanets (a planet outside ...

Today, we know of more than 5,000 exoplanets: planets outside our solar system that orbit other stars. While the effort to ...

An image released from the European Space Agency (ESA) shows a rare perspective of Earth 180 million miles away on Mars.

For nearly 40 years, scientists have generally agreed that Earth's Moon formed from debris after a massive collision with our ...