artificial satellite

noun

Meaning

A man-made object placed into orbit around a planet, moon, or star to collect data, facilitate communication, or observe the environment.

Examples

  • Thousands of artificial satellites currently circle the Earth to provide global positioning and weather data.
  • The launch of the first artificial satellite, Sputnik 1, marked the beginning of the space age in 1957.

Synonyms: probe, orbiter, spacecraft, space station