The dark web isn't visible by searching it on the web, it requires you to use an anonymizing browser called Tor in order to access it. This mysterious part of the internet is a hotbed of criminal activity and you can do all sorts of illegal things in that website such as buying drugs, weapons, subscriptions, software sources to help you hack into other people's computers, etc.

Snow leopards have evolved throughout the years to live in the harshest conditions on Earth, their white-gray coated spotted with black dots helps them keep warm and helps them blend in to Asia's high mountains, which is their natural habitat. They also have incredible camouflage, making them as if they're invisible in their surroundings.

Fireworks is the highlight of many holidays and celebrations such as Independence Day, Chinese New Year, etc. Though they are older than you thought-it was believed that they were invented in China over thousands of years ago.

A bow is a long and flexible staff with short string attached to the staff's two ends, which is why the staff is bent. An arrow, however, is a shaft with feather-type vanes.

Black holes are one of the most dangerous objects roaming around our universe. These fallen-stars have gravitational fields so strong not even light can escape.