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Is the Moon on Earth or in space?
The Moon is a natural satellite, or a space object that orbits around something else. Our Moon is Earth’s natural satellite. In general, a moon is a natural satellite of a planet, and a planet is a special kind of natural satellite that orbits a star and also meets other conditions.
What is the Moon technically?
The Moon is Earth’s only natural satellite. At about one-quarter the diameter of Earth (comparable to the width of Australia), it is the largest natural satellite in the Solar System relative to the size of its planet, the fifth largest satellite in the Solar System overall, and is larger than any known dwarf planet.
How long is a day in space on the Moon?
The short answer is this: A day is the length of time between two noons or sunsets. That’s 24 hours on Earth, 708.7 hours (29.53 Earth days) on the Moon.
Is it bad to be an astronaut in space?
As crews escape the protective envelope of Earth’s magnetic environment, they run across forms of radiation in space that are bad for human health. Just three months working aboard the International Space Station would subject an astronaut to more than triple the maximum recommended dosage of radiation for one year.
Why is NASA interested in human space travel?
One human challenge explored, one step closer to Mars. NASA’s Human Research Program (HRP) is dedicated to discovering the best methods and technologies to support safe, productive human space travel.
Who are the astronauts that have been in space?
Up there, where perspective is immeasurably wide, it’s impossible to miss the forest for the trees. The astronauts — Chris Hadfield, Jerry Linenger, Nicole Stott, Mae Jemison, Leland Melvin, and Mike Massimino — have all had the rare opportunity to view our home planet from space.
What does NASA do to make space exploration safe?
NASA’s Human Research Program (HRP) is dedicated to discovering the best methods and technologies to support safe, productive human space travel. HRP enables space exploration by reducing the risks to astronaut health and performance using ground research facilities, the International Space Station, and analog environments.