Our world is full of wonders, mysteries, and fascinating facts that often go unnoticed. Here are ten mind-blowing facts that will leave you amazed and pondering the vastness and complexity of our universe.

1. The Human Brain's Storage Capacity

The human brain can store an estimated 2.5 petabytes of information. To put that into perspective, if your brain were a digital video recorder, it could store three million hours of TV shows. You would have to leave the TV running continuously for over 300 years to use up all that storage.

2. The Immensity of the Universe

The observable universe is about 93 billion light-years in diameter. Considering light travels at approximately here 186,282 miles per second, this means the edge of the observable universe is about 46.5 billion light-years away from us, despite the universe being only 13.8 billion years old. This paradox is due to the universe's expansion.

3. The Internet's Weight

It might sound unbelievable, but scientists have estimated the total weight of the Internet to be around 50 grams, about the weight of a strawberry. This calculation is based on the electrons that constitute all the data being transmitted at any given time.

4. Bananas Are Radioactive

Bananas contain potassium, and a small fraction of potassium is radioactive. Eating a banana exposes you to about 0.1 microsieverts of radiation. While this amount is minuscule and harmless, it is interesting to note that if you ate 10 million bananas at once, you would receive a lethal dose of radiation.

5. The Eiffel Tower Can Be 15 cm Taller During the Summer

The Eiffel Tower is made of iron, which expands when it heats up. Due to thermal expansion, the tower can grow more than 15 centimeters (6 inches) in the summer when temperatures rise.

6. The Majority of Your Cells Aren’t Human

A large part of your body isn’t human. The human body contains about 30 trillion human cells, but it also hosts about 39 trillion microbial cells. This means that you are actually more bacteria than human in terms of cell count!

7. Octopuses Have Three Hearts

An octopus has three hearts. Two pump blood to the gills, while the third pumps it to the rest of the body. When an octopus swims, the heart that delivers blood to the body actually stops beating, which is why these creatures prefer crawling.

8. Honey Never Spoils

Archaeologists have discovered pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible. Honey’s long shelf life is due to its low moisture content and acidic pH, which create an inhospitable environment for bacteria and microorganisms.

9. The Speed of Brain Signals

Neurons in the brain transmit information at different speeds. The fastest speed for signals to pass between neurons is about 250 miles per hour. This rapid transmission enables us to think, react, and process information almost instantaneously.

10. There Are More Stars in the Universe Than Grains of Sand on Earth

The estimated number of stars in the observable universe is around 1 septillion (1,000,000,000,000,000,000,000,000). In comparison, the number of grains of sand on all the world’s beaches is estimated to be around 7.5 quintillion (7,500,000,000,000,000,000). This means there are about 133 times more stars than grains of sand on Earth.