Yes, there are existential risks, but climate is not one of them. And if it is, it would be from cooling, not heating.
Category Archives: Space
An ELEO Thought Experiment
Imagine that you could have 150,000 tons of cargo (or people) delivered to equatorial LEO annually, at $60/lbm. What would you do with it? What are the markets? We’re talking on the order of $5B/year.
[Update late afternoon]
Note that that’s less than a quarter of the NASA budget…
For that money, we could have 150,000 tons of material/people in orbit, or pay for another year of SLS/Orion.
[Friday-morning update]
Thanks to a comment, I went and rechecked, and found an error in the spreadsheet. The cost is more like $20/lbm.
Red Tape
The orbital Starship attempt probably won’t happen in July.
Sperm On Mars
Ummmm…no.
There is a lot more involved in human reproduction on Mars than the survival of the sperm. We continue to have no idea if we can safely gestate in partial gravity.
Zhurong
…has been located on Mars, by the MRO.
Asteroids
Martin Elvis has what looks to be an interesting new book out.
Keeping The Pork Flowing To Mississippi
The New Atlantis
I’ve been writing long essays on space for them almost since the inception of the journal. They could use some financial support now.
Paul Spudis
At the request of his widow, Anne, I have updated this post from about three years ago to correct the record.
Dark Skies
Jeff Greason reviews Deudney’s anti-space screed. He is the opposite of impressed.