The only place mankind have ventured beyond Earth is on the Moon. The Moon, the largest and brightest object in our night sky, stabilizes the Earth's axial wobble, which results in a generally constant climate. This makes Earth a more livable planet. Also, it brings about tides, which produce a rhythm that has aided people for countless years.
An astronaut is a person who has been prepared, equipped, and sent into space as part of a human spaceflight program to serve as a commander or crew member.
Fun facts about Astronauts