unmanned spacecraft
CEFR: B2
Robotic space probes, satellites, or rovers operated without human crew onboard, controlled autonomously or by radio telemetry.
Synonyms
- robotic space probe
- automated satellite
Common Collocations
- launch unmanned spacecraft
- robotic unmanned spacecraft
- deep-space unmanned spacecraft
Example Sentence
Unmanned spacecraft are significantly more cost-effective for exploring harsh planetary environments with high radiation.