1. The Universe Is Around 13.8 Billion Years Old
Scientists estimate the universe began with the Big Bang nearly 13.8 billion years ago and has been expanding ever since.
2. There Are More Galaxies Than We Can Count
The observable universe contains trillions of galaxies, each with billions of stars and planetary systems.
3. Most of the Universe Is Invisible
Dark matter and dark energy make up about 95% of the universe, yet they cannot be directly observed.
4. Space Is Completely Silent
Sound cannot travel in space because there is no air or medium to carry sound waves.
5. The Universe Is Constantly Expanding
Galaxies are moving away from each other, and the expansion of the universe is accelerating over time.
6. There Are More Stars Than Grains of Sand on Earth
Scientists believe the universe contains more stars than all the grains of sand on every beach combined.
7. Black Holes Can Bend Time and Light
The extreme gravity of black holes distorts space-time, causing time to slow down and light to bend around them.
8. The Coldest Place in the Universe Is in Space
Temperatures in deep space can drop to just a few degrees above absolute zero.
9. The Universe Has No Known Center
The universe expands evenly in all directions, meaning it does not have a single central point.
10. We Are Made of Stardust
The elements that form human bodies were created inside stars and scattered across space after stellar explosions.
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