Newly Found ‘Black Widow’ Binary Has Third Companion

<p>The flash of a pulsar about 3,000 light-years from our solar system was caused by a ‘black widow’ binary consuming a smaller star. Intriguingly, a third companion star is orbiting the pair, which may have originated near the Milky Way’s center. Plus, the Sun is ramping up, Chandra releases more sonification videos, and this week’s What’s Up is all about occultations.</p>