This Week's SponsorKandji - Next-generation Apple device management for macOS, iOS, iPadOS, and tvOS.
By Jason Snell for Yahoo
As a kid, I always found it disappointing to turn on my favorite TV show only to discover it was an episode I’d already seen. Nobody likes reruns. Except for astronomers using the Hubble Space telescope: They’re waiting for the biggest repeat performance in the universe: a supernova.