Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

For decades, Pluto was celebrated as the ninth planet of our solar system. However, in 2006, the International Astronomical ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Dwarf planet Pluto and our Earth are the only two worlds in our solar system with very large moons. These may have come about by a "kiss and capture" process, which preserves a moon's large size.

7, 2025 — A researcher has used advanced models that indicate that the formation of Pluto and Charon ... our understanding of the Earth-Moon system and the broader solar system.

7, 2025 — A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system ... other moons in the solar ...

"It's half Pluto's size and 12% of its mass, which makes it much more similar to the Earth's moon than any other moon in the solar system." For comparison, our moon is just a quarter of the size ...

The organic ingredients to life, hints to where Earth’s water came from, and the fundamental building blocks of our planet ...