There are also moons in the solar system, that is objects orbiting around the planets. In fact just over 180 moons at the last count. And some of those moons are so large that if they were ...

So exactly how many solar system moons have we found? The answer, it turns out, depends on your definition of a moon. The International Astronomical Union (IAU) officially recognizes 288 planetary ...

"These objects really could be anywhere in the solar system at any given time." One million alien visitors from another star system could already be lurking in the solar system. We aren't talking ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far ... asteroids, or moons that broke up before they reached the planet. As well as its rings ...

About 4.6 billion years ago, this gigantic cloud was transformed into our Sun. The processes that followed gave rise to the solar system, complete with eight planets, 181 moons, and countless ...

A diagram showing the structure of the solar system and its shell of icy bodies | Credit: NASA The duo conducted a simulation of the solar system and Alpha Centauri that lasted for over 100 ...

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the ... its two small and irregularly shaped moons, Phobos and Deimos. The two lumpy worlds ...

Now, using a powerful NASA supercomputer called "Pleiades," scientists have discovered yet another spiral structure on the edge of our solar system. The spiral is composed of billions of icy ...

The discovery points to what astronomers have thought for decades, that Saturn's rings were caused by a massive collision about 100 million years ago.