Yeah, it’s not really optimized for mobile, most of testing was done playing on a computer, with keyboard and proper display. I think it’s not really suited for mobile, it’s frustrating on a PC as well, I can’t see myself playing it on mobile.

Yes, atmospheric drag applies in the circle.

Oh, it's much easier on the keyboard.

Minor feature request: In the start when there are three buttons to pick the mode, I 'd like to use the mouse.

Big feature request: I made a similar simulator a long time ago, and I wished to add an option to show the expected trajectory in the future as a help. Also, show the trajectory in case I press up and in case I press down, so I can get some intuition about the change of the trajectory. (I'm not sure if it's possible to do this fast enough. I never added it to my simulator.)

You should try exploring what the Gemini protocol has to offer.

There are some great websites listed here, and some of them do have some CSS. How much CSS is too much for a website to be praised as being text only?

Simple notes for Emacs with an efficient file-naming scheme

They finally upgraded to 5¼-inch floppy disks?

Other source[1] says 0.0002 AU, still very close (about 40,000 km).

[1]: https://cneos.jpl.nasa.gov/scout/object/ZTm0038

This, as I understand it, being the closest approach to our orbit, not our atmosphere or so. To put this in perspective, the Earth is some 6.4 Mm in radius, so that's 40-6.4 = 33.6 Mm above the surface.

Do we know how close it was?

According to a site [1] pointed to by another post in this page, the estimate for "Minimum Orbit Insertion Distance" was about 0.02 AU or about 3 million km (in round numbers).

Luna's distance is roughly 384,000 km -- so call it 8 lunar orbital distances...

(edited to add the link) [1] https://www.projectpluto.com/neocp2/mpecs/ZTm0038.htm

This service requires Starlink v2 satellites, which require Starship to fly to orbit (regularly). An orbital test of Starship should take place this year, but I wouldn’t be surprised if it’s pushed for next year. And there’s a long way from an orbital test to frequently launching Starships with Starlink v2 satellites.

> If the SLS blew up during testing, it would set the program back a literal decade (or more).

It just did, a few weeks ago: https://www.nasa.gov/exploration/systems/sls/nasa-engineers-....

It's not a blow, it's natural for a rocket's first flights. Check out Ariane 5 performance in its first 14 flights and remember that last week we had Ariane 5 80 consecutive flight without an issue. It takes time to iron out rocket problems.