Universe! looks full of stars, right? But the universe is mostly… nothing. It’s 99.99% empty! Between galaxies, there’s a vast, cold vacuum where you could float for millions of years and never hit anything. The largest empty region we’ve found is the ‘Boötes Void’—a chunk of space 330 million light-years wide with almost no galaxies at all. It’s like the universe’s own ghost town. #space #universe #darkmatter #DarkEnergy #cosmos #astrophysics #astronomy | Modern Sciencex