Space Exploration
Facts About Space Exploration:
- The first human in space, Yuri Gagarin, orbited Earth in the Vostro 1 spacecraft on April 12, 1961.
- Neil Armstrong became the first person to walk on the moon on July 21, 1969.
- The Soviet Union launched Sputnik 1, the first artificial Earth satellite, on October 4, 1957.
- The footprints of the Apollo astronauts will remain on the moon for millions of years because there is no wind or water to wash them away.
- Some astronauts have reported that the moon smells like wet ashes or spent gunpowder, and that space smells like burned steak.
- The International Space Station (ISS) orbits Earth by moving "sideways" and falling towards Earth, while the horizon curves away at the same rate. This creates a feeling of weightlessness for those on board.
- Space travel requires complex calculations to "slingshot" from planet to planet.
- Space exploration provides a new perspective for studying Earth and the solar system, advances new technologies, and inspires a new generation.
- Space exploration is conducted by human spaceflights and robotic spacecraft.
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