Interesting Facts About Halley's Comet

Halley's Comet is the best-known of the short-period comets, and is visible from Earth every 75 to 76 years.Halley is the only short-period comet that is clearly visible to the naked eye from Earth, and thus the only naked-eye comet that might appear twice in a human lifetime. Here is list about some interesting facts about these comets :-

1. Halley’s Comet is named after English astronomer Edmond Halley who first determined its period of orbit. It was the first comet to be recognized as having a periodic orbit.

2. It last appeared in the inner Solar System in 1986 and will return again sometime in 2061.

Olympus Mons - Largest Volcano In Solar System !!!

The largest known volcano in our solar system OLYMPUS MONS on the planet Mars. At a height of almost 22 km it is roughly three times as tall as Mount Everest and is the also tallest known mountain in the Solar System.. Olympus Mons had been known to astronomers since the late 19th century as the albedo feature Nix Olympica.With a diameter of more than 500 km and a summit that towers 25 km over the surrounding plains, its volume is over 100 times that of Mauna Loa in Hawaii.