Our solar system is no longer top dog in the Milky Way. NASA, using Artificial Intelligence in which computers "learned" how to identify planets, discovered Kepler-90i, a rocky planet that orbits its star once every 14.4 days and has a surface temperature about 800° C. That brings Kepler-90's system up to eight planets, the same as ours. But all of Kepler-90's planets have orbits closer than Earth's is to our sun.
Software engineers came up with a way to "train" the neural network to identify transiting exoplanets using previously proven signals and then tested it. The neural network correctly identified true planets and false positives 96% of the time. The computers can now sort through the massive amount of data that humans can't do easily or as quickly.
The data that led to this discovery was collected from NASA's Kepler Space Telescope. Kepler-90 is a Sun-like star about 2545 light-years away from Earth in the Draco constellation.
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