One million Earths could fit inside the Sun - and the Sun is considered an average-size star. For years it was believed that Earth was the only planet in our solar system with liquid water.More recently, NASA revealed its strongest evidence yet that there is intermittent running water on mars too.

Space is a silient vaccum cleaner with an average temperature 270.45. It houses an estimated two trillioin galaxies, and has fascinated humanity with incredible celestial phenomena across the solar system and beyond.