Oldest solar system unearthed by Kepler
![Kepler 444](https://www.sciencenews.org/sites/default/files/main/articles/cc_Kepler444.jpg)
Some planets were already billions of years old when Earth was a mere twinkle in our sun’s eye.
The Kepler space telescope has unearthed the oldest known solar system. Five tiny rocky worlds snuggle up
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