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NASA's Voyager Found a 30k-50k Kelvin "Wall" at the Edge of Solar System

(www.iflscience.com)
246 points world2vec | 2 comments | 23 Jun 25 16:24 UTC | HN request time: 0.427s | source
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whycome ◴[23 Jun 25 20:29 UTC] No.44359754[source]▶
30K to 50K K? K. It’s not clear what the range represents. Were they polling and those are max and min values they got? Was that their range of uncertainty because it’s hard to accurately measure there?

Also, I hate the ambiguity of a title that references “Voyager Spacecraft” so it’s unclear if it was one or both.

replies(2): >>44359815 #>>44360292 #
1. Y_Y ◴[23 Jun 25 20:37 UTC] No.44359815[source]▶
Small k for kilo-, big K for kelvin.

I skimmed the links that TFA provided and couldn't find the source of that figure. With rare space plasmas near shocks it's typical to have non-thermal distributions where the temperature isn't well defined. I don't think it's anything to get to excited about without having a proper article from NASA instead of IFL slop.

replies(1): >>44360423 #
2. whycome ◴[23 Jun 25 21:38 UTC] No.44360423[source]▶
So it's more the temperature range uncertainty? is that a product of the environment (and with few particles one can actually measure) or a product of the measurement apparatus?