Crivello

Crivello was a 51st century Earth scientist. He was considered the greatest scientist of his time.

When the Sun began to fail, he created Crivello's Cauldron, the heart of an artificial sentient sun. He tried to communicate with it to give instructions, but failed and was aged sixty years as a result. He had his android Marquez throw the Eighth Doctor into the Cauldron, having realised a time traveller would not be affected as he was. The primed Cauldron departed for the Crab Nebula, where it would become the center of a new star system in an unpopulated area in that region. The Doctor departed, not knowing that Marquez later killed Crivello. (COMIC: The Keep)