ArsTechnica

Ophelia became a major hurricane where the waters are usually too cold

Enlarge / It’s safe to say that as a major hurricane, Ophelia was something of an outlier on Saturday. Sam Lillo/Twitter Hurricane Season 2017 View more stories The system formerly known as Hurricane Ophelia is moving into Ireland on Monday, bringing “status red” weather throughout the day to the island. The Irish National Meteorological Service, Met Éireann, […]

ArsTechnica

Dimming of Tabby’s star likely caused by something less sexy than aliens

Enlarge / This illustration depicts a hypothetical uneven ring of dust orbiting KIC 8462852, also known as Boyajian’s Star or Tabby’s Star. NASA/JPL-Caltech In recent years, a distant star in the constellation Cygnus, known officially as KIC 8462852 and unofficially as Tabby’s star, has intrigued astronomers due to its irregular but significant dimming. As the star has […]