Space probe
From Tardis Wiki, the free Doctor Who reference
A space probe was either a robotic space exploration device launched by spacecraft or a spacecraft with robotic attachments. Some space probes had autonomic capacities (i.e. they controlled their own actions), while others depended entirely on being controlled by the sender.
Humans began sending space probes out from Earth as early as the 1950s (TV: Delta and the Bannermen) and would continue to do so into the 21st century. (TV: The Christmas Invasion)
