1.The Earth revolves around the sun, not the other way around.
2.The speed of light is constant and finite, and it's the fastest thing we know of in the universe.
3.Evolution by natural selection is the fundamental process that shapes the diversity of life on Earth.
4.The universe began with the Big Bang approximately 13.8 billion years ago.
5.All matter is made up of atoms, which are themselves composed of protons, neutrons, and electrons.
6.The genetic code is written in DNA, a double helix structure composed of four nucleotides.
7.Gravity is a fundamental force that attracts objects with mass towards each other.
8.The human brain is the most complex and powerful organ in the body.
9.The theory of relativity proposed by Albert Einstein describes the relationship between space, time, and gravity.
10.Photosynthesis is the process by which plants convert sunlight into energy.
11.The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.
12.The universe contains dark matter and dark energy, which together account for about 95% of its total mass-energy.
13.Cells are the basic unit of life and all living organisms are composed of one or more cells.
14.The periodic table of elements organizes all known chemical elements by their atomic properties.
15.The Earth's atmosphere is composed of roughly 78% nitrogen, 21% oxygen, and 1% other gases.
16.All living organisms share a common ancestor and are part of a single tree of life.
17.Plate tectonics describes the movement of Earth's lithosphere (crust and upper mantle) and explains the formation of continents and ocean basins.
18.The speed of sound varies depending on the medium it travels through, and it's much slower than the speed of light.
19.The concept of entropy describes the tendency of systems to move from a state of order to a state of disorder.
20.The human immune system is a complex network of cells, tissues, and organs that defends the body against disease and infection.The universe is estimated to be around 13.8 billion years old.
21.The speed of light is about 186,000 miles per second (299,792 kilometers per second) and is the fastest speed possible in the universe.
22.There are eight planets in our solar system, with Earth being the third planet from the sun.
23.The closest star to our solar system is Proxima Centauri, located about 4.2 light-years away.
24.The largest known planet in the universe is Jupiter, which is more than twice as massive as all the other planets in the solar system combined.
25.The Milky Way galaxy is estimated to contain between 100 billion and 400 billion stars, including our sun.
26.Black holes are regions in space with such strong gravitational forces that nothing, not even light, can escape them.
27.The Hubble Space Telescope has captured some of the most stunning and detailed images of space since its launch in 1990.
28.The International Space Station (ISS) is a habitable artificial satellite in low Earth orbit, and it's the largest human-made object in space.
29.The Mars Rover missions, conducted by NASA, have sent robotic vehicles to explore the surface of Mars and search for evidence of past or present life.
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