You Are the Universe

The story takes place in the near future. Andrij Meľnyk, a solitary and taciturn cosmonaut, transports nuclear waste aboard a space vessel to one of Jupiter's moons. His only companion is the onboard computer Maxim. During one of his routine flights, Earth mysteriously explodes, and he is the sole human survivor.

He desperately searches for other survivors until he unexpectedly hears from Catherine at a French space station. Andrij decides to find her at all costs, but there is a catch.