NASA's Voyager 1 is out there, still going strong, and is due to pass out of our own solar system. If it was still functioning at the end of time for our Sun, this is what it might look like. Beautiful, in death's cold, dark embrace.
It's more an artistic look at the events following the cessation of fusion, rather than a scientific one, but it's stunning nonetheless. It was made in memory of Arjan Groot, a graphic designer who passed back in 2011. A fitting tribute. [Stardust via io9]