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We'll be covering this in detail in this week's Orbital Index. https://orbitalindex.com

One thing that's unusual about this mission is that it required a loitering communication satellite orbiting beyond the far side of the Moon to relay communications to Earth. https://orbitalindex.com/archive/2024-03-13-Issue-260


China's progress and this accomplishment are very impressive, the more the merrier. But NASA does have two nuclear powered humvees driving on Mars at the moment.

And until recently, a helicopter :)

Super cool! We have been tracking this mission in Orbital Index for a while. https://orbitalindex.com/archive/2024-03-13-Issue-260/#chang...

This mission required a communication satellite that loiters on the far side of the Moon as well to relay communications back to earth. https://orbitalindex.com/archive/2024-03-13-Issue-260/#queqi...


Love Orbital Index... just realized I stopped getting emails from you guys in 2022 :( Does it auto-unsubscribe if I don't open one for a while? I was away from the Internet for a few months.

Glad you’re a fan! It shouldn’t, unless it was 6+ months I think.

Slightly longer term, I think the real threat is from synthetic biology + AI.


The number and scale of data centers around Dulles is just crazy. The power consumption must be absurd.


I live nearby and whenever I drive/cycle through the area, I have to laugh a little. In person, it looks just as absurd as it sounds or looks on a map. $1 million homes surrounded by giant windowless hulks. It's possibly the most dystopian place in DC metro.


This is false, if your SBSP conversion efficiency on the ground is better than solar panels on the ground then you will add less energy to earth by collecting the power in space and transmitting it to the ground then by changing the reflective albedo of desert to a very nonreflective material like solar panels.


Hmm. If your PV has efficiency > the albedo of the ground it covers, it will be better than SBSP, even if the rectenna is 100% efficient (assuming the emissivity of the PV is at least as good as that of the desert in the far IR). This assumes the rectenna has the same optical properties as the ground it covers.

One could improve the PV by making it highly reflective in the near IR at wavelengths below the bandgap of the cells, while still being highly emissive at the longer wavelengths where it will radiate heat.


Thank you for summarizing!


Came here to post the same thing, The Story of Earth is excellent!


That’s horrible, I’m sorry for your loss.


This is super cool, thank you for making it!


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