Hard to believe it’s been that long since SpaceShipOne first went to space. I live blogged it at the time. Just scroll down.
Category Archives: Space
Musk Versus Bezos
That Strange Congressional Hearing On Wednesday
It doesn’t have my byline, but I have a blog post up at the SpaceTech Analytics website.
The Four Horsemen
Yes, there are existential risks, but climate is not one of them. And if it is, it would be from cooling, not heating.
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.