STELLAR ZOMBIES HOW DEAD STARS LIVE ON
Stars age gracefully, reliably radiating heat and light for millions or billions of years. But when it comes to dying, they put on a show. Stars’ enormous energy comes from hydrogen atoms smashing together inside their cores to make helium, a process called . When their hydrogen fuel begins to run out, stars begin fusing helium instead. This causes them to swell into red giants, or even super giants, in a last-ditch effort to stay alive. After that, they might go
