HD 187123 b is Cam Buzard’s favorite planet. About 160 light years away in the constellation Cygnus, it circles a star about as massive as our sun—only so close that a year flies by in three days. It weighs more than 150 Earths and sizzles at about 2,000 degrees Fahrenheit.
Machine learning seems ubiquitous these days. The technique—which allows computers to automatically convert data into knowledge and action—is being used to train everything from internet search engines and self-driving cars to facial recognition systems and voice assistants such as Siri.