1. Gravity Is a Fundamental Force of Nature
Gravity is one of the four fundamental forces, alongside electromagnetism, and the strong and weak nuclear forces.
2. Gravity Keeps Planets in Orbit
Without gravity, planets would move in straight lines and drift away instead of orbiting stars like the Sun.
3. The Moon Controls Ocean Tides
The gravitational pull of the Moon causes Earth’s oceans to rise and fall, creating tides.
4. Gravity Travels at the Speed of Light
Changes in gravity move through space as gravitational waves at the speed of light, not instantly.
5. Objects Fall at the Same Rate in a Vacuum
Without air resistance, a feather and a hammer fall at the same speed, as demonstrated on the Moon.
6. Gravity Gets Stronger with Mass
The more massive an object is, the stronger its gravitational pull on other objects.
7. Black Holes Have Extreme Gravity
The gravity of black holes is so strong that not even light can escape once it crosses the event horizon.
8. Gravity Affects Time
According to Einstein’s theory of relativity, time moves slower in stronger gravitational fields.
9. Gravity Shapes Galaxies
Gravity pulls stars together to form galaxies and controls their structure and motion.
10. Humans Experience Microgravity in Space
Astronauts float in space because they are constantly falling around Earth, creating a microgravity environment.
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