Page "Romulan" Paragraph 129

According to the 2009 film Star Trek and the prequel comic series Star Trek: Countdown, Romulus ( and presumably Remus ) is destroyed in 2387 by a star going supernova.

Spock was dispatched to stop the supernova with a red matter device but arrived too late.

However, the implosion of the supernova caused by the red matter opened a rift in space-time that sent Spock and the Romulan mining ship Narada, along with its captain, Nero, and its crew, to go back in time more than 100 years, creating an alternate timeline.

Driven mad with grief, mostly because of the death of his pregnant wife, Nero and his men seek revenge against the Federation, whom they view as having caused the catastrophe indirectly, including the older version of Spock using the superior technology of their ship and equipment.

Nero also destroys the Federation starship USS Kelvin, seven other Federation starships, as well as a fleet of Klingon ships, and the planet Vulcan in the film's timeline.

The problems of the Hobus supernova being so devastating to other solar systems is addressed in the computer game Star Trek Online, by declaring the blast to have " traveled through subspace ".