Potpourri Post: Family Business and an Exoplanet With Air

Smoke, probably from fires near the Minnesota-Canada border and elsewhere raised — or lowered — air quality here to hazardous levels. I've probably got the best respiratory system in the household, but even I was feeling less than perky.
More at A Catholic Citizen in America.
(A brief, for me, recap of this week: a family visit, and two science news articles.)

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