the.com/space probe

means An uncrewed spacecraft launched to explore planets, moons, or deep space and send data and images back to Earth.

from A straightforward compound: 'space' from Latin spatium (an area or expanse), and 'probe' from Latin probare, to test or examine — the same root that gives us 'probation' and 'prove.' A surgeon's probe explores a wound to find what's inside; a space probe does the same to the solar system, reaching into the unknown to see what's there. The term became common language in the mid-20th century as actual uncrewed craft began flying past the Moon and planets, turning a medical/scientific instrument word into a household term for mechanical explorers.