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Comment by hehdhdjehehegwv | Hacker News Reader

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Megaconstellations are not a problem for kids looking through telescopes. If anything it’s additional things to wonder at in amazement.

Indeed. The big obstacle for kids is when the entire sky is washed out with sodium vapor light and maybe you can see Vega.

Growing up in a small town, I could see thousands of stars on a clear night. In a major metropolitan area where I live now, it’s hundreds. When I visited Beijing for three weeks, I think there was one night where the pollution cleared sufficiently to see any stars at all; I think I saw three or four.

LED’s are causing an exponential ramp in lighting pollution right now. (They’re more efficient, so people install them in more places and leave them on longer.)

Legislation is probably the only way to fix it.

People are convinced that their towns are "safer" if the lighting is bright enough to read a newspaper in the middle of every street in the middle of the night by street lamp alone, and think their oversized SUV seems tougher if the headlamps sear the eyeballs of everyone else on the road.

For actually necessary amounts of outdoor lighting at nighttime, LEDs are not any more power efficient than low-pressure sodium lamps, and considering how bright LEDs are often made, total power consumption is significantly higher.

The lighting industry has absolutely zero respect for human ergonomics, and is happy to sell as much new lighting as they can as often as they can with marketing spin built on pseudo-scientific nonsense. Surely there must be some engineers in the industry with basic understanding of human vision, but they aren't calling the shots. Policymakers are happy to channel Federal subsidies and local tax revenue through to the lighting industry, tossing out PR announcements about how "green" and "modern" they are being along the way.

The issue with LEDs is that they are broad spectrum, whereas sodium lights always fall in a very narrow band in the spectrum which is easily handled with a physical filter.

Dim orange low-pressure sodium lamps are much much better than bright blue–white LEDs.

Exactly. My fondest memories of childhood stargazing was gathering people around me, pointing at the sky and asking them to look, just as a high-magnitude Iridium flare was starting. Heavens Above was my secret weapon for showing off in high school.

SpaceX single handedly made my whole family excited about space exploration. My mother watches every launch and landing, keeps track of Starlink satellites passing by and runs out with her phone camera every time they are visible.

She even started to learn English because she wanted to understand what they're saying on the live streams. I am fixing some production bug at 4 AM and suddenly she's texting me like "you're watching the launch too???". And last time I forgot to send her the link to the latest Starship test she nearly grounded me.

She is a seamstress who never cared about any of this until she saw the first landing of Falcon Heavy, proclaimed that we live in a fucking scifi and became the biggest Elon Musk fangirl I know.

NasaSpaceFlight, an independent space news group, has done wonders. They go the extra mile to explain everything, answer viewers questions, and even brought students' experiments to the 2nd Superheavy launch. They cover all space companies

https://www.nasaspaceflight.com/

https://www.youtube.com/channel/UCSUu1lih2RifWkKtDOJdsBA

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