When Earth Has 12 Suns

Mankind’s artificial stars of the future

We are attempting to save planet Earth from the sun. In 1 billion years the star’s luminosity will have increased by 10%, causing a runaway greenhouse effect on the planet and boiling our oceans until Earth resembles its tragic sister planet, Venus. In 5 billion years this situation will become even more dire; the sun will reach its Schönberg–Chandrasekhar…