space probes

Unmanned celestial explorers

Space probes are unmanned spacecraft sent to explore celestial bodies or regions of space.

Unlike satellites, which orbit Earth, probes travel outward—to planets, moons, asteroids, or beyond the solar system.

Some fly by their targets, others orbit them, and some land: The Voyager probes have left the solar system.

Data from space probes has transformed our understanding of the cosmos.

Related

phone home · Juno · New Horizons · outer planets · Galileo · orbital mechanics · Huygens · satellites · interplanetary travel · Voyager · golden record · exploration · pale blue dot · heliosphere · solar wind · cosmic ray · planetary science · propulsion systems

Categories
Opposites
crewed vs. uncrewed spacecraft

space probeshuman spaceflight

Launching people into orbit

Space Shuttle · Apollo missions · Soyuz · Skylab · space stations

remote exploration vs. terrestrial observation

space probesradio telescopes

Instruments detecting celestial emissions

Arecibo · laboratory experiments · field research

outward exploration vs. inward focus

space probesgeological surveys

Scientific land structure analysis

introspection · navel-gazing

Family

space, probe, spaceship, spaces, spacecraft, probing, Hubble Space Telescope, probed, probes

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Known to kids · Used worldwide · Timeless · Concrete · Positive · Everyday, not technical · Rated G