Every second of your life, your body is like a fortress under siege. Billions of bacteria, viruses, and fungi are constantly trying to set up shop inside you. To fight them off, your body has put together an incredibly complex system – think of it as a tiny, sophisticated army complete with guards, soldiers, intelligence officers, weapons factories, and communication specialists. Their main job? To protect you from, well… dying.

Hey there. Let’s talk about this virus that’s been going around, the one everyone calls coronavirus. Officially, it’s known as Severe Acute Respiratory Syndrome-Related Coronavirus 2, and the sickness it causes is called Covid-19.

Imagine there’s an object so incredibly tough, so extreme, and so brutal that it could potentially challenge black holes. These things are called gravastars. They’re like Cosmic soap bubbles filled with pure energy, wrapped in a shell made of the weirdest stuff possible in nature.

Imagine this: you might be inside a black hole, that’s inside another black hole, which is inside another black hole. It’s possible that everything in existence is just black holes going all the way down.

You look up at the night sky, and it seems like a big, empty ocean with just a few islands of galaxies sprinkled around. But that’s not the whole story; it’s actually an illusion. See, only a small part of all the atoms out there are actually inside galaxies. Most of the rest are thought to be floating around in the space between galaxies, what we call the intergalactic medium.

Black holes are known for destroying everything they encounter, but could they themselves be destroyed? Let’s push the boundaries of physics, maybe even break the universe a little bit, and try it out.

Black Hole Stars. Imagine the biggest stars you can think of, then multiply that size and brightness beyond belief. These were potentially the largest stars ever, burning brighter than entire galaxies and far bigger than anything we see today or expect to see in the future.

So, you’re wondering what would happen if a black hole the size of a coin suddenly popped up nearby? The super short answer? You’d probably die.