Astronomers can’t see these mighty munchers of matter, but they spot their effects across the galaxy. Black holes form when stars 20 times larger than our own sun run out of fuel and go ‘’supernova” – or explode. The dying star’s core collapses under its own gravity until it scrunches into a singularity – or tightly packed point – smaller than an atom. Despite its tiny size, the singularity still packs a gravitational pull many times stronger than our sun. Like a cosmic whirlpool, the black hole pulls in anything – asteroids, planets, other stars, and even light – that gets too close.
Picture Credit : Google