What focal length do you normally shoot at? My rig is at 610mm and I get satellite trails mostly around dusk/dawn, but they all get rejected out during stacking

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

Only 7 years ago!

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

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

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

They actually just got rid of the stars, now you just tip people

https://old.reddit.com/r/reddit/comments/16ryhv9/celebrating_great_content_is_as_good_as_gold/