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Galileo made his first telescope, and was able to make more improvements form there. They were all refracting telescopes. This helps scientists very much because we can learn more about our solar system by using this telescope.
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Galileo was able to see the moon through his telescope.
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Sir Isaac Newton made the first reflecting telescope. This telescope helps in many ways. Scientists can now use the work of Isaac and update the telescope and make it better.
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Sir Isaac Newton created the three laws of motion.
Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. ... The third law states that for every action (force) in nature there is an equal and opposite reaction. -
The first picture of the moon was taken!
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Oberth built the first liquid-fueled rocket and launched it in 1929. He was very smart and figured out that to travel a far distance, you would need to use liquid fuel.
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Oberth joined a team and they built the r-2, which is the first human object in space.
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The space race started between USSR and US. They’ve really fighting to try and get to the moon. US got there first.
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One of the first dogs was sent into space, and she wasn't expected to survive. Her name was Laika. They wanted to test out if it was safe for a living organism to be sent out.
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NASA was born, and is well known!
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The first weather satellite was launched to be able to predict weather.
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Yuri Gagarin was the first human in space. He was Russian.
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Neil Armstrong and Buzz Aldrin were the first humans to set foot on the moon. Made possible by NASA's Apollo 11 mission.
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The first space station went into orbit. (Salyut 1) It helped in many ways. For example, it got data to help us know more about our solar system and it took pictures.
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The challenger exploded while launching.
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The international space station was made. It was a combination of multiple countries. They decided to put all heads together for the world and have better ideas, information, and knowledge.
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The Columbia broke down while re entering earth.
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Cassini rover has traveled a long way and finally get to Saturn. It took roughly about seven years to complete this mission and was extremely hard for it not to get lost or to get hit by an astroid or comet.
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The first time food has been grown and eaten in space!
