One possibility is that a rogue planet, about 1–2 times Earth’s mass, influenced their paths early in the solar system's ...

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 ...

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

A team of astronomers has uncovered an Earth-like planet orbiting a star located 4,000 light years away from the solar system ...

Legendary Star Lacks Evidence for Large Planet Construction Ever since the dawn of human consciousness, skywatchers have been ...

Pluto. Due to its large mass, it would have a great internal energy that could sustain, for example, subsurface oceans. Its orbit would be very distant, much beyond Neptune, and much more inclined ...

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

Tiny grains from a distant asteroid are revealing clues to the magnetic forces that shaped the far reaches of the solar ...

It would depend on a lot, say our readers, from how big it was to the route it took - but it could have significant ...

MIT researchers analyzed precious samples from the asteroid Ryugu, delivered to Earth by Japan’s Hayabusa2 mission. They looked for clues of an ancient magnetic field.

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, ...