The average person has over 1,460 dreams a year. See more

There are more than 40,000 characters in Chinese script. See more

After billions of years, black holes become white holes and they spit out all the things they sucked up. See more

If you leave a goldfish in a dark room for years, it will turn white. See more

In a year, your heart can beat up to 40,000,000 times!. See more

A day on the planet Mercury is twice as long as its year. See more