Things That Go Bump in the Dark

Is it the tiniest black hole ever or the largest neutron star ever? We may never know, but one of them has been discovered thanks to gravitational wave observations. And an interesting black hole merger took place near the center of a distant galaxy, and we may see it get gobbled up in just a few years. Closer to home, we explore how to look for moons around exoplanets, as well as space news, LEGO trivia, and your Walkabout sponsor of the week.

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