A review of the Cernan documentary, by Chris Petty.
Category Archives: Technology and Society
Neil DeGrasse Tyson
No, Vox
Not “all diet books lie.”
It’s amazing how many people, including journalists, cling to discredited nutrition “science.”
Landing On Mars
SpaceX has already demonstrated the tech needed to do it with Falcon 9 flybacks.
[Update a while later]
More details from Loren Grush.
As I write in my project: “There was an old saying on the American frontier about the Mississippi River: ‘It’s too thick to drink, but too thickn to plow.’ Similarly, the Martian atmosphere has been tantalizing aerodynamicists for decades.” They really need to stop trying to use the Martian atmosphere if they want to drop serious payload.
Blue Origin Engine Progress
This update from Jeff Bezos looks encouraging.
Sarah Cruddas
I met her briefly in Colorado Springs at the National Space Symposium. Here’s a nice interview with her.
More Mars 2018 Stories
Here’s one from Nadia Drake, over at NatGeo, Lisa Grossman at New Scientist, Jeff Foust at Space News, and a follow up from Eric Berger, who’s been writing quite a bit this week.
Expert Judgment And Uncertainty Qualification
An interesting post from Judith Curry on the gross deficiencies of the IPCC approach.
The Latest From The Lexington Institute
“Why is the USAF trying to destroy the launch industry?”
I may fisk this later, if I get time, but what a load of bull.
[Wednesday-afternoon update]
Daniel Gouré’s op-ed “Why Does The Air Force Want To Destroy The Struggling U.S. Space Launch Business?” is inaccurate and misleading.
You don’t say.
[Bumped]
Mars 2018?
SpaceX dropped a news bombshell today, via tweets from Elon and other sources. Here’s the story from Eric Berger, Alan Boyle, Sarah Fecht, Loren Grush, and Jay Bennett. It’s a sample return from Mars using a “Red Dragon” (Dragon 2).
My thoughts: 2018 is ambitious, but not undoable. It depends on getting FH going this year or next, and what else they’ve been working on behind the scenes. I assume that 2018 is the next window that they think it’s possible to be ready for.
I’d like to see details. For instance, will Raptor be involved, or will it be an all-kerosene mission? The CONOPs chart at Popular Mechanics shows it as dual FH launch. I’d bet that they could do it with a single one if they bought a Centaur from ULA, but SpaceX doesn’t like to depend on others for space transportation. I assume this is part of the larger announcement they’ll be making in Guadalajara in September.
In other Mars news, NASA has just released what looks to be an interesting document on advanced technologies for Mars settlement. None of which are seriously funding (including the Senate cutting funds for Mars landing technology this week so it could shovel more good money after bad at SLS).
[Update a few minutes later]
Here’s the relevant Space Act Agreement between SpaceX and NASA, including how to deal with planetary protection protocols.
[Update a few minutes later]
Eric Berger notes the irony of the Senate cutting the tech budget for Mars landing in the same week as a private Mars-landing announcement. So it can fund a giant rocket that isn’t needed to go to Mars.
[Another update]
Importantly, it appears that this first Red Dragon mission will be funded by @SpaceX, rather than NASA, if I'm understanding things right
— Jonathan McDowell (@planet4589) April 27, 2016
But wait! I thought private companies couldn’t afford space exploration!
[Update in the afternoon]
Here’s the story from Christian Davenport at the WaPo.
[Update a while later]