The roughly six-hour flyby in 1986 revealed Uranus' protective magnetic field was strangely empty. Now, researchers say that ...

Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

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

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

The solar system has nine planets, but in 2006 the International Astronomical Union declared Pluto a dwarf planet, making the ...

Are there hidden planets in our solar system? New technologies, like the powerful Rubin Observatory, brings us closer to ...

Samples collected from the near-Earth asteroid Ryugu have revealed clues about a primordial magnetic field that helped asteroids, planets and moons grow in our solar system. Analysis of three ...

Our solar system used to have nine planets. Astronomer Mike Brown ... discovered another small world called Eris in the Kuiper Belt — a vast ring of icy objects beyond Neptune’s orbit that ...

Despite its relative weakness, researchers believe it was sufficient to affect the formation of bodies at distances more than seven times the Earth-Sun distance. That includes Jupiter, Saturn, Uranus, ...

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