NASA @NASA
Aging stars pollute their surroundings as they burn, but galaxies recycle! ♻️ The cloud of dust and gas surrounding a galaxy absorbs byproducts and pushes them back in, fueling the formation of new stars. About the process & a mission set to observe it: https://t.co/zUgBbrCS7H https://t.co/ltZa1zimHe — PolitiTweet.org