As noted last week, I'm on vacation and mostly offline this week in the Midwest, but here's a sprinkling of Web links mailed in from Miguel's Coffee Bar in Dubuque, Iowa:
• Slate: Does North Korea really need to test its nukes?
• The Space Review: Space sports and space power
• Scientific American: Impact from the deep
• Associated Content: A view from July 20, 2019 (via Hobbyspace)
