Miner Instabilities is a new PvE queue for level 51+ players, tasking captains with rescuing the Gorn miners, repelling the attack on the Federation facility, and attacking the Romulan forces on multiple fronts. It offers Fleet Marks and Temporal Marks as rewards, thus giving players plenty of reason to head back and solve a problem that technically should qualify as already solved by the time anyone hears about it. Time travel is just plain weird.
Source: Official Site