Space Probes

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by karisalomon
Last updated 7 years ago

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Space Probes

Space Probes

What are they?- Space probes are spacecraft that travel through space to collect scientific information.

Famous Space ProbesSputnik-• It was the first probe.• It was launched on Oct. 4, 1957, by the former Soviet Union.• It orbited Earth.• Sputnik means “fellow traveler” in Russian, but has come to mean “satellite” in Russian as well.• It was used to test the method putting a probe in space.• It also provided information on Earth’s atmosphere’s density.Voyager-• Voyager has traveled farther in space than any other man-made object in the past.• It was launched in 1977.• It flew past Jupiter and Saturn and headed for the edge of the solar system.• As of Feb. 1, 2010, the spacecraft was 16.8 billion km (10.4 billion mi) away from Earth.The Mariners-• Mariner 2 flew past Venus on Dec. 14, 1962, and confirmed its high temperatures.• Mariner 4 was the first probe to capture a picture of a planet. It snapped a picture of Mars as it flew past. The picture revealed a cratered, moon-like surface.• Mariner 9 was the first probe to orbit Mars (in 1971) and took a picture of Mars’ largest volcano, Olympus Mons.

What are they used for?-• to explore places in space where humans can’t go• to collect scientific information to relay back to Earth• to study the atmosphere and composition of bodies in space• to send back readings of temperature, magnetic field strength, radiation levels, and gravitational field strength of planets

Did you know?ALL space probes are unmanned and unpiloted. They are programmed with a computer and have no passengers. This is because space probes sometimes have to withstand extreme conditions that humans couldn’t withstand. Also, humans need necessity supplies. It is a lot easier (and cheaper) to go on a space voyage without these supplies.


Mariner 2


Neptune and Triton (taken by Voyager)

Mercury(taken by Mariner 2)


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