How a teen found a planet.

• Position: SCIENCE - Tom Wagg - Brief article

It was his third day as an intern at a college astrophysics lab in the U.K. Tom Wagg was scanning through images of the night sky in the summer of 2013 when he spotted a tiny dip in a star's brightness 1,000 light-years away. Wagg, then 15, thought the culprit might be an undiscovered planet passing by, and he alerted researchers at the University of Keel, where he was on a one-week "work experience." Now, two years later, scientists have confirmed Wagg's theory--likely making him the youngest person to discover a planet. His gas planet, which...