Savitar
The Solar System's two hundred twenty-million-year journey around the edge of the milky way was bringing it back to an encounter that had previously wiped out the Martian civilization. This time the Earth was in the cross hairs.
Zackary Milton, a PhD in Astronomical History, and his partner Dr. Craig Garrity discover the small blackhole that will interact with the Solar system and likely devastate Earth
Zack envisions a way to capture and move it out of Earth's path.
He leads the effort.
He is saved by Janet, his body guard from several assassination attempts by those wanting to stop his program.
After many months travel out to and capturing the blackhole Zack and Janet realize they are soul mates that will live on the sphere that has a blackhole at its center.