This was unexpected. I saw him at the beginning of the month in Orlando at the NSS Space Settlement Summit. I quoted and referenced him in my Reason Foundation study, for his work in showing that multiple launches were actually lower mission risk than a single one. Lori Guisewhite (who I also saw there) remembers him as well.
RIP and Ad Astra.
Good news, from VDH.
There seems to be some confusion about his employment situation. Yes, he resigned from his administrative position at Penn, but he is still a professor there.
For now.
Are we at a turning point?
We can hope.
Thoughts from Eric Drexler.
Remembering “my mischievous friend.”
My parents had the “An Evening Wasted With…” album.
The bad science and bad policy at the heart of it.
[Afternoon update]
Climate science is baaaaack.
This is one of the biggest (and most needed) regulatory rollbacks in history.
More from Ed Morrissey and Stephen Green.
Three long-shot ways of solving it. One of them is space.
…punctured. A new paper from Judith Curry.
Stunning sculptures when they are given life by AI pic.twitter.com/P0LoJVFKip
— Rose (@simple2work) March 15, 2025