• Moiya McTier

Astronomy Fun Fact #6

We've found thousands of planetary systems in the Milky Way, but the vast majority of them (more than half) only have one planet that we can see. The most planets we've ever detected in a planetary system outside of our own was 8 -- which is how many planets our solar system has! Those eight planets make up the Kepler-90 system, which orbits a star just a bit larger than our Sun. The outermost planet in the system is almost exactly as far from its star as we are from the Sun.

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