10 Interesting Fact About Space exploration and colonization

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• The first human being to reach space is Yuri Gagarin in 1961.
• The closest planet to the earth is Mars, and scientists are looking for ways to make human colonies there.
• There are more than 170 billion galaxies in the universe known.
• The biggest star known is Uy Scuti, with a radius of about 1,700 times greater than the sun.
• One day on Planet Venus is longer than one year on earth.
• Giant gas planets such as Jupiter and Saturn have many natural satellites, including Europa which is known to have ice on its surface.
• There is an asteroid containing precious metals such as gold and platinum which is trillions of dollars.
• Astronauts can grow taller in space because there is no gravity that pulls their bodies down.
• Scientists are looking for ways to create spacecraft that can reach speed faster than light.
• Many planets in the universe that might sustain life like the earth, and scientists are looking for signs of life on these planets.