Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

While it's no longer officially a planet, Pluto remains a fascinating and beloved part of our solar system with a slightly ... That’s about 9.5 years of high-speed space travel, covering nearly ...

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is hidden in our solar system.

Pluto is undoubtedly the most famous of all the dwarf planets, because it was once considered part of the main lineup of planets in our solar system. But there are… ...

So far, the only evidence has come from some oddities in the orbits of small Pluto-like ... a way that the solar system can exist the way it does without there being a Planet 9." ...

Till 2006, there were nine planets in the solar system. Pluto was the farthest planet from ... and 11 months for one orbit around the Sun and 9 hours, 56 minutes for one spin on its axis.