Two Quick Links for Thursday Afternoon

Astronomers have found a potential remnant nebula for a supernova recorded by Chinese and Japanese astronomers in 1181 CE. "This sighting in 1181 CE is the only one in the past millennium not to have an associated nebula...with it." [syfy.com]

How America's hottest city is trying to cool down. There are solutions to climate challenges in cities (more trees!), but as efforts in Phoenix show, the poorest areas often get short shrift. [youtube.com]

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