Written by Sunny
Modified & Updated: 30 Dec 2023
Reviewed by Jessica Corbett
It’s always fun to learn new things about the universe because it’s so mysterious yet we keep discovering more. These fascinating universe facts will make you realize how we’re all just a tiny speck in the grand scheme of things.
- The universe is constantly expanding.
- Our solar system is 4.6 billion years old.
- Scientists believe the Earth will be destroyed by celestial phenomena in the next billion years.
- The universe is made up of roughly 68% dark energy, 27% dark matter, and 5% normal matter.
- It would take 450 million years for a modern spacecraft to reach the center of our galaxy.
- Space refers to the expanse between the earth and other celestial bodies.
- Stars and galaxies formed from concentrated matter and other particles in space.
- A black hole can destroy a star if it passes too close to it.
- Prolonged exposure to microgravity (lesser force of gravity in space) can cause muscular dystrophy and bone loss in humans.
- Dark matter comprises 90% of outer space, and no one can tell what it is or what it does.
- Distance in space is measured in light-years.
- A light-year refers to the amount of distance light can cover in a year.
- We can only see 5% of the universe from Earth.
- Space is only 62 miles away.
- There are 3 main types of galaxies in space: elliptical, spiral & irregular.
- Humans have explored outer space more than the ocean: only 5% of the ocean has been discovered.
- Space smells “sulfuric,” like gunpowder or welding fumes.
- Tears don’t fall in space. All “free” liquids will float in a spherical shape.
- Your limbs will float when you sleep in zero gravity.
- Pluto is smaller than the U.S.
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