Mjollnir (UTC67-02C) was a Class 4 Planet surveyed by Catherine Sakai for Universal Terraform in 2259. [1]
Sakai's final stop aboard the Skydancer before her scheduled rendezvous with the Universal Terraform Operations ship, Mjollnir proved to be quite fruitful and yielded a number of samples of promising minerals, including Quantium 40. However, Sakai was forced to dump those samples while emerging from a Jumpgate in a bid to escape an unknown alien vessel that had been trailing her through Hyperspace.