`Oumuamua is moving faster than expected on its way out of our solar system. Astronomers now think it’s really a comet, venting material from its surface that’s giving the object a small but steady push.
Scientists just learned that honeybees can understand the concept of zero. That puts bees in an elite club of clever animals – some birds, monkeys, humans – that can grasp the abstract notion of nothing.
Since the 1970s, scientists have treated pulsars and magnetars as 2 distinct populations of objects. Now they think they might be stages in a single object’s evolution. A new NASA ScienceCast has more.