| Timeline for 10,000,000,000 |
According to one account, Sol would explode in the year 10,000,000,000, rendering non-viable the star system in which Earth once existed. (TV: Colony in Space [+]Malcolm Hulke, Doctor Who season 8 (BBC1, 1971).) The Fourth Doctor visited Barclow in "about 10,000,000,000 AD." (AUDIO: The Well-Mannered War [+]John Dorney, adapted from The Well-Mannered War (Gareth Roberts), Novel Adaptations: Volume 2 (Novel Adaptations, Big Finish Productions, 2015).)