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.

Interesting facts about Wikipedia

Wikipedia is incredible. It's free to use. It's one of most-popular site in the world. An energetic army of volunteers keeps it current. And it pays its bills with donations. Lets see some interesting facts about Wikipedia :

1. Jimmy Wales and Larry Sanger launched Wikipedia on January 15, 2001.

2. The site has an official theme song called "Hotel Wikipedia," a parody of The Eagles' "Hotel California."

3. At one point, Wikipedia instituted a week-long ban on IP addresses that belonged to Congress. It seems that Congresspeople were editing each other's articles a little too zealously.