My site has this but only for satellites. https://james.darpinian.com/satellites/ For OP I'd suggest doing calendar events for notifications rather than Web Push. Web Push is very difficult to set up, users are suspicious of it, and it doesn't guarantee timely delivery on Android devices. Calendar events work well on mobile. - Source: Hacker News / 3 months ago

I bet it is used in a lot of ways people don't notice. In my site[1] I use wasm to run an ancient piece of code called SGP4, but it's totally invisible to the user. Someone actually ported SGP4 to JavaScript but it's slower and doesn't perfectly match the original, so it's great to have the option to run the real C version (actually the original is Fortran but the C port is the standard these days). [1]... - Source: Hacker News / 4 months ago

I live 10 miles from Boston and I've seen them a whole bunch. I've used https://james.darpinian.com/satellites/?special=starlink. - Source: Hacker News / 4 months ago

Https://james.darpinian.com/satellites/ Put in your location and it will tell you when and where to look at the sky to see one. Works great for me and hopefully it will work for you. - Source: Hacker News / 4 months ago

Starlink Go to this site. It will tell you all the satelites in your area and what time they will pass over you. It will also tell you how many starlink satts will be in the 'train' . Most I have seen was 54 travelling east west and 52 travelling north south. And passed in the middle. That would have totally freaked out a few people. Https://james.darpinian.com/satellites/. Source: 6 months ago

YES, PLEASE! There is already a VR space experience, which seeks to give the participant the "Overview Effect" of floating above earth. How amazing would it be to have a similar thing looking the other way. here's why:. Source: almost 3 years ago

You can and you should. https://spacevr.co VR googles combined with a flotation tank. Source: almost 3 years ago