When Earth Orbits a New Star

How we’ll replace our sun and avoid planetary doom

In the prequel articles, “When Jupiter Becomes a Star” and “When Earth Has 12 Suns”, we explored the idea of saving the doomed Earth from the aging sun. As a future red giant, the sun’s surface would extend out to the location of Venus and possibly beyond, condemning our planet to a broiling, melting, vaporizing death. We’ve seen…