50 Science Facts

50 amazing science facts and discoveries from various fields:

1. The universe is approximately 13.8 billion years old.

2. There are more stars in the universe than grains of sand on all the beaches on Earth.

3. The human brain can process information as fast as 120 bits per second.

4. The first ever photo of a black hole was captured in 2019.

5. The speed of light is approximately 299,792 kilometers per second (186,282 miles per second).

6. Honey never spoils. Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible.

7. The human body has enough iron to make a 3-inch nail.

8. The Earth's magnetic field is generated by the movement of molten iron in its outer core.

9. The DNA of humans and chimpanzees is over 98% identical.

10. The Sun makes up 99.86% of the total mass of the Solar System.

11. The Eiffel Tower can grow up to 6 inches (15 centimeters) taller during the summer due to thermal expansion.

12. The total surface area of a human lung is approximately equal to that of a tennis court.

13. Human bones are stronger than concrete. A matchstick-sized bone can support up to 9 kilograms (20 pounds) of weight.

14. The blue whale is the largest animal to have ever existed on Earth, even larger than any known dinosaur.

15. The sound of thunder is created by the rapid expansion of air caused by lightning.

16. Earth is the only known planet with liquid water on its surface.

17. The highest temperature ever recorded on Earth was 134 degrees Fahrenheit (56.7 degrees Celsius) in Death Valley, California, USA.

18. The human eye can distinguish about 10 million different colors.

19. Octopuses have three hearts: two pump blood through the gills, and one pumps it through the rest of the body.

20. Lightning strikes around the world about 100 times per second.

21. There are more atoms in a single glass of water than there are glasses of water in all the world's oceans combined.

22. The Earth's atmosphere weighs about 5.5 quadrillion tons (5.5 x 10^15 tons).

23. Honeybees communicate with each other through a dance known as the "waggle dance" to indicate the location of food sources.

24. A day on Venus is longer than a year on Venus. It takes Venus about 243 Earth days to complete one rotation on its axis, but only about 225 Earth days to orbit the Sun.

25. A bolt of lightning can reach temperatures hotter than the surface of the Sun.

26. The chemical element francium is so rare that a total of about 25 grams exist on Earth at any given time.

27. The weight of all the ants on Earth is roughly equal to the weight of all the humans.

28. The average person will produce enough saliva in their lifetime to fill two swimming pools.

29. The total length of all the blood vessels in the human body is about 60,000 miles (97,000 kilometers).

30. Sound travels about four times faster in water than in air.

31. The Earth's crust is made up of giant moving pieces called tectonic plates.

32. Jupiter's Great Red Spot is a massive storm that has been raging for at least 350 years.

33. A single strand of human hair can support about 100 grams (3.5 ounces) in weight.

34. The human heart creates enough pressure to squirt blood up to 30 feet (9 meters).

35. The Ozone layer in the Earth's atmosphere absorbs about 97-99% of the Sun's high-frequency ultraviolet (UV) light, protecting us from harmful radiation.

36. Cows have best friends and can become stressed if separated from them.

37. The longest recorded duration of a sneeze is 978 days.

38. The planet Saturn would float in water due to its low density.

39. The first computer mouse was made of wood.

40. The human eye can distinguish between approximately 2.3 million different colors.

41. The Earth's core is hotter than the surface of the Sun.

42. The fastest human-made object is the Parker Solar Probe, which reached speeds of over 700,000 kilometers per hour (430,000 miles per hour) during its mission to study the Sun.

43. The human body contains enough carbon to fill about 9,000 pencils.

44. There are more bacteria in a person's mouth than there are people on Earth.

45. The human nose can detect over 1 trillion different smells.

46. The largest known single organism on Earth is a fungus in Oregon's Malheur National Forest, covering 2,385 acres.

47. The longest mountain range on Earth is the Mid-Atlantic Ridge, which spans over 40,000 miles (64,000 kilometers).

48. The world's oldest known dinosaur is the Nyasasaurus, dating back over 240 million years.

49. A day on Mercury (the closest planet to the Sun) is longer than a year on Mercury. It takes about 59 Earth days for Mercury to rotate once on its axis and about 88 Earth days to complete one orbit around the Sun.

50. The farthest galaxy ever observed is GN-z11, located approximately 13.4 billion light-years away.