* The universe is incredibly vast: We can only observe a tiny portion of it.
* Planet detection is challenging: We use indirect methods like detecting the wobble of a star caused by a planet's gravity.
* Planet sizes vary: Some planets are much smaller and harder to detect than others.
What we DO know:
* Billions of planets: Scientists estimate there are billions of planets in our Milky Way galaxy alone, and billions of galaxies in the observable universe.
* Exoplanets are common: We've confirmed the existence of thousands of planets outside our solar system, and that number is growing rapidly.
So, while we don't have a definite answer, it's safe to say there are likely an unimaginable number of planets out there!
