Galis Expedition

From Tardis Wiki, the free Doctor Who reference

The Galis Expedition was the first mission sent in order to find the planet Krop Tor. They found that it did indeed exist and orbited K37 Gem 5 as if it were a star rather than a black hole. The Galis Expedition brought back several artefacts including a notebook and some ancient pottery.

The Galis Expedition was followed by the Walker Expedition. (DW: The Impossible Planet)