Utopia Planitia Fleet yards destroyed

The Utopia Planitia Fleetyards on Mars are sabotaged and subsequently destroyed by rogue synthetics in a surprise attack. The battle results in the loss of 92,143 lives, the planet itself being considered destroyed, its stratosphere ignited, and the destruction of the rescue armada to evacuate Romulus. In the aftermath of the attack, the Federation, unable to determine how or why the synths went rogue, bans the creation of synthetic lifeforms.