Oldest solar system unearthed by Kepler
Small rocky planets formed throughout the history of the universe
![Kepler 444](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/01/cc_Kepler444.jpg?fit=860%2C460&ssl=1)
OLD WORLDS Five small rocky planets orbit Kepler 444 (illustrated), a cool red star that is 11.2 billion years old.
Tiago Campante/Peter Devine