The Pod Bay

« first day (1788 days earlier) ← previous day next day → last day (2449 days later) »

PearsonArtPhoto

01:09

So I'm estimating around $250 million for transportation/ astronaut to Mars initially, and $800 million or so including cargo and equipment. It might even be half of that.

That assumes SpaceX pays for most/all R&D

2 hours later…

PearsonArtPhoto

02:59

BFR Mars Ticket Cost

►

Am I off? Is the video too long?

1 hour later…

uhoh

04:11

First Man - Official Trailer (HD)

►

Just-released first trailer; wow!

@PearsonArtPhoto I like your video and the way you've thought things through.

One quick thought, at about 08:20 you mention the Sabatier process, why not add a text overlay of the reaction CO2 + 4H2 → CH4 + 2H2O and credit the photo (who is that, what machine, what institution).

Also, Sabatier was French, and his name is pronounced with four syllables.

And mention the other equipment necessary to produce the Hydrogen, and the huge quantity of solar energy needed to drive the reaction, how many square kilometers of solar panels and how many years, etc.

Don't forget to include both the energy to make the hydrogen and the energy to convert it and CO2 to methane!

Q: Back to oribt from Mars - how many km^2 yr of solar power to make enough propellant?

In this cool video of a presentation about SpaceX's GPU-based computational fluid dynamics, there is a slide early on about making rocket fuel on Mars - specifically using water from the ground and carbon dioxide from the atmosphere to make oxygen and methane: 2H2O + CO2 -> CH4 + 2O2 Going in ...