Falcon Heavy is getting ready for its hot-fire test in Texas, and LC-40 is getting back in business after the boo boo last fall.
Category Archives: Technology and Society
Mimicking An Early Impact In Earth’s Atmosphere
…results in the creation of all four DNA bases. This seems much more significant than Miller-Urey.
The Space Symposium
If, like me, you couldn’t make it to Colorado Springs last week, Calla Cofield has highlights.
[Noon update]
Valerie Insinna has the story on Tory’s choice in engines. Aerojet Rocketdyne has to have fingers crossed in the hope that BE-4 testing doesn’t go well.
Recovering Falcon Second Stages
Dick Eagleson has some interesting speculation.
Meanwhile, is the small-sat launch industry going to be Amazoned?
The Storms Of Jove
Bob Zimmerman has some thoughts on the gas giant.
Vitamin D
Should we be supplementing, or not?
As is often the case, the science is iffy. I’m taking 5000 IU of D3 daily (or at least when I remember to take anything). No idea if it’s helping, but I don’t generally spend a lot of time in the sun. In fact, I have a solar-powered watch whose battery occasionally runs down because I spend so much time in my office. So it seems likely that I’m somewhat deficient.
The Syria Strike
Why did they use Tomahawks? This is a pretty good explanation. As the article says, it was low payoff, but it was also low risk, and could be done quickly without having to coordinate with allies, as symbolism.
[Update a few minutes later]
What the Syria attack did, and didn’t do.
Passover
For those in a hurry, a cute one-minute haggadah.
Space Corps
Coyote is really pushing this concept. Now he’s got an op-ed at Aviation Week.
The Long Space Age
This looks like an interesting new book