Grumpy Old Geeks People Jonathan McDowell Person Jonathan McDowell 2 mentions in 1 episode The astrophysicist cited during the discussion of satellite reentries. Mentions 718: Net Unhelpful Oct 18, 2025 15:18 according to astrophysicist Jonathan McDowell 16:00 McDowell, he's warning the situation is getting, I love this, quote, pretty busy up there.