“Stars with a mass of less than 0.25 solar masses do not evolve into red giants.… Toward the end of the blue dwarf phase, Proxima will become considerably more

“Stars with a mass of less than 0.25 solar masses do not evolve into red giants.… Toward the end of the blue dwarf phase, Proxima will become considerably more luminous, reaching up to 2.5% of the Sun’s luminosity. Once it runs out of hydrogen fuel, it will evolve into a white dwarf, skipping the red giant phase, and gradually lose all its heat energy.” So we just need to tackle climate change and learn to live sustainably on Earth, then we’ll have a few billion years to figure out how to get to Proxima Centauri.