Usually when you think about planets you imagine big round things composed of water, dirt, gas, etc. that have their own orbital paths around a giant fiery star, and you would be right. What you may not know is that not all planets fall into that category. Known as rogue planets, these troublesome celestial bodies are planets without stars to hold them with their gravity in orbit, which leaves them to float around space freely, and thanks to Newtons first law we know that in space, an object in motion will remain in motion unless acted upon by an external force. The scary thing here is that researchers believe there are at least twice as many of these planets, as there are stars in the universe. And, according to theory, if one of these planets were to enter our solar system it could cause another planet to lose their orbit and float of into the void, becoming a cold, dead rogue planet.
