For the first time, eight planets have been found orbiting a distant star, Kepler-90, 2,545 light-years from Earth in the Draco constellation, NASA announced Thursday. It is the first star known to support as many planets as are orbiting our own sun, and researchers believe that this is the first of many to come. Researchers had known that seven planets were orbiting the star. But Google Artificial Intelligence -- which enables computers to "learn" -- looked at archival data obtained by NASA's planet-hunting Kepler telescope and uncovered the eighth planet.
A former Facebook executive has said he feels "tremendous guilt" over his work on "tools that are ripping apart the social fabric of how society works", joining a growing chorus of critics of the social media giant. Chamath Palihapitiya, who was vice president for user growth at Facebook before he left the company in 2011, said: "The short-term, dopamine-driven feedback loops that we have created are destroying how society works. No civil discourse, no cooperation, misinformation, mistruth." The remarks, which were made at a Stanford Business School event in November, were just surfaced by tech website the Verge on Monday.