Outer Space Facts
Outer Space Facts
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| Interesting Outer Space Facts: |
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| Outer space exploration began with high altitude balloons. |
| All of the known planets have been reached by unmanned spacecraft. |
| The idea of there being an outer space was discovered by Aristotle in 350 BC. |
| According to the Big Bang theory outer space was formed by the vacuum that was left behind after the formation of the stars and galaxies. |
| Planets are able to orbit because there is no friction in outer space. |
| The Moon is moving away from Earth at a rate of about 3.8 cm a year. |
| It takes 300,000 years for the energy inside the sun's core to become sunlight that we can see. |
| Two pieces of raw metal would combine into one piece of metal if they touched in space. |
| Quasars are black holes in space that exist at the center of galaxies. |
| Some of the gaseous planets have a small density and could therefore float in water. |
| Liquids in space do not flow and instead form themselves into spheres. |
| There are four asteroids that orbit Earth and are sometimes referred to as Earth's extra moons. |
| The conditions of outer space allow our spines to stretch out causing us to be about two inches taller. |
| Since there is no wind on the moon, foot prints left there can last millions of years. |
| There are about 15 galaxies that orbit the Milky Way galaxy. |
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