Iirc the original goal was ‘at least 10’ but maybe up to 100 flights for a booster. No way to really know without flying them a lot

It’s definitely real, at least for the amateur astronomy subs I (used to) mod. I suspect a lot of the traffic to askastrophotography or telescopes is from people googling stuff and browsing though mobile web, but since /r/astrophotography is just photos, most are just on the app

Probably varies a bit from sub to sub, but old reddit users are a clear minority. The vast majority use the app

Oh no! Where will I go to see OF spam bots now???

Only 7 years ago!

https://www.youtube.com/watch?v=qU7FuAswPW0

They transmit T cruzi (Chagas’ disease), which can cause heart failure

Kinda as a joke I designed a house for astrophotography in sweethome 3D. You can also export the whole 3D house model into unity and upload it to VRChat to actually walk around inside it

https://youtu.be/Gco_OVsT3Wo

They shut it down last September. It’s nsfw spinoff redgifs is still up.

https://github.com/Balackburn/Apollo

You'll have to install AltStore (or Sideloady) on your computer + phone to resign the app each week (this can happen automatically if they're on the same wifi network). You can make your own personal API key at https://old.reddit.com/prefs/apps/ (It's limited to 100 requests per 10 mins, which you wont run into browsing by yourself). Also as long as you moderate a subreddit (I think even if it's just an empty one you make), NSFW content wont be blocked on the API.

Also while you're sideloading, I'd highly recommend uYouPlus for a better youtube app

It’s at least possible to sideload Apollo and use your own API key for it.

Mercury would be a denser propellant than xenon/other Nobel gasses used for ion thrusters in orbit. There’s been a ton of other insane fuel types proposed over the years which thankfully haven’t been used (although a lot of rockets have and still use toxic hypergolic fuels like hydrazine)

Good vid going over some of these fuels: https://youtu.be/_wLk2j7_KB0

At least for us amateurs satellite trails get completely rejected out during image stacking. They’ll definitely be more of a problem for professional observatories, especially large survey scopes like Vera Rubin