The Universe is an extraordinary place. It includes moons, planets, stars galaxies and all matter and energy.
Although its size is still unknown, wonderful things happen in it.
The Big Bang theory represents the cosmological description of the Universe’s development through time.
Under this theory “space and time emerged together 13.799±0.021 billion years ago with a fixed amount of energy and matter that has become less dense as the Universe has expanded.’’ – Wikipedia
Here are 11 unbelievable 11 facts about the Universe:
- Almost all of ordinary matter (99.9999999% of it) is empty space. so, if you took-out all of the space in our atoms – the entire human race (all 7 billion of us) would fit into the volume of a sugar cube.
- The iron in our blood or the calcium in our bones were brewed up in the heart of an exploding star billions of years ago.
- In 1969. Armstrong was the first man to step on the moon. Since the moon has no atmosphere , so there’s no water or wind to sweep through the bootprints that were created, they will probably stay there for a million years from now.
- Outer space is silent. Eerily silent. That’s because sound waves need some sort of medium to travel through. And space is a vacuum. A dark, silent vacuum.
- There might be as many as three sextillion stars in the universe. That’s 3 followed by 23 zeros, or 300,000,000,000,000,000,000,000. That’s more than all of the grains of sand on Earth.
- If you unraveled all of the DNA in your body – it would span 34 billion miles, reaching to Pluto (2.66 billion miles away) and back… 6 times.
- Have you known that our bodies contain cosmic relics from the creation of the universe? Almost all of your hydrogen atoms were formed in the Big Bang – about 13.7 billion years ago.
- The light from some stars takes so long to travel to our eyes. So, when you look at the star-speckled night sky – you’re actually peering deep into the past. NASA’s Hubble Telescope can look as far back as – 13 billion years ago.
- If you touch 2 pieces of the same type of metal together in the vacuum of space, they will fuse, bound together until eternity (or until you break them apart).
- 224 Earth days are equal to 1 year on Venus. And 1 day on Venus is equal to 243 Earth days. Which makes a day on Venus longer than a year. And to top it off, Venus is the only planet in our solar system that rotates backwards.
- The Sun makes up 99.86% of the mass of the Solar System. It’s that big so you could squeeze 1.3 million Earths inside of it.