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Hubble Deep Field

In 1995 NASA surveyed the darkest part of the night sky, with seemingly no stars in it. They used the Hubble telescope to survey the section of the sky, which is about 1/12 the size of the full moon. The below picture is what they found.

Every single lighted pixel in that photo, besides the three labeled points, are galaxies, each with 100 billion to 10 trillion stars in them, with every star having its own set of planets.

There are over 3000 galaxies featured in this picture. Even if we underestimate on purpose how many stars each galaxy has, and say each star only has 3 planets each (which we know the probably have many more), there are still over 90 trillion planets featured in this photograph. Yet the craziest thing about this picture is that this area of the sky is so small you can fit more than 8,300 of those areas in the entire night sky.