Scientific facts often sound unbelievable, but many of them are completely true and supported by research. Science has a way of surprising us by revealing how strange and fascinating the world really is.
For example, bananas are naturally radioactive. They contain potassium, including a radioactive isotope called potassium-40. This radiation is harmless to humans, but it can be detected by sensitive instruments. Another strange fact is that the human body actually glows. Due to chemical reactions happening inside our cells, our bodies emit a very weak visible light, but it is far too faint for the human eye to see.
There are also more trees on Earth than stars in the Milky Way galaxy. Scientists estimate that Earth has over three trillion trees, while our galaxy contains between 100 and 400 billion stars. Octopuses are another example of nature’s weirdness. They have three hearts and blue blood. Their blood is blue because it uses copper instead of iron to carry oxygen.
Water can also behave in a way that seems impossible. Under very specific pressure and temperature conditions, it can boil and freeze at the same time. This phenomenon is known as the triple point of water. Time itself is not as constant as it seems either. Due to gravity, time passes slightly slower at your feet than at your head. The difference is extremely small, but it has been proven using atomic clocks.
Some animals are even stranger. Wombats produce cube-shaped poop, which helps prevent it from rolling away and makes it easier to mark territory. Honey, on the other hand, never spoils. Archaeologists have found honey in ancient Egyptian tombs that is thousands of years old and still edible because of its natural chemical properties.
Plants are more aware than we think. Some plants can sense vibrations caused by insects chewing on them and respond by producing defensive chemicals. The world of mathematics is just as mind-blowing. The number of possible chess games is greater than the number of atoms in the observable universe.
Humans also share surprising similarities with other living organisms. We share about 60 percent of our DNA with bananas, which shows how interconnected life on Earth truly is. Finally, the human brain generates enough electrical activity to power a very small light bulb, as neurons communicate through electrical signals.
These facts may sound fake at first, but they are real. Science proves that reality can be far stranger, more complex, and more amazing than fiction.