Die Suche nach Funksignalen findet auf K2-18b keinen Hinweis auf eine außerirdische Zivilisation
https://www.newscientist.com/article/2516306-search-for-radio-signals-finds-no-hint-of-alien-civilisation-on-k2-18b/
Die Suche nach Funksignalen findet auf K2-18b keinen Hinweis auf eine außerirdische Zivilisation
https://www.newscientist.com/article/2516306-search-for-radio-signals-finds-no-hint-of-alien-civilisation-on-k2-18b/
14 Kommentare
Maybe they all just stayed quiet on purpose?
We’re the guy yelling and making a bunch of noise in the woods while everyone else is silently hiding from the planet eaters. Basically screaming that we’re morons ripe for harvest.
Unserious comment.
We wouldn’t detect any signals even if there was a thriving technological civilization on that planet. At 124 light years any signals being sent would look exactly like the background radiation that fills the universe. The Inverse square law all but insures that we won’t ever detect anything this way, and that no one else out there will be detecting us.
Look the neighbours are being nosey again, keep quiet.
Is this the whole spectrum or just radio
Why would another civilisation have radio 4
How very surprising. The great silence in all likelihood has very deep seated causes.
An advanced civilization would not use 1920’s tech.
Ok but k2-18b is 127 light years away. If they scanned us they wouldn’t fin anything either because we would be in the year 1899… soooo… I don’t think it means anything.
How many LY away are they?
I mean, they are probably drawing the same conclusion while looking at earth. There wasn’t much going out from earth 124 years ago.
For a second there I missed the words ‘no hint of’ and got excited.
„Ugh it’s Earth, don’t pick up.“
The problem with that kind of observation is your still looking into the past
I say we take off and nuke the entire site from orbit. It’s the only way to be sure.
Here’s the paper if anyone’s interested: https://arxiv.org/pdf/2602.09553
They searched for narrowband signals, and say they’d have detected down to around 10^12 W. So they would have detected the Arecibo message if they’d been beaming one right at us, arriving during the 80 minutes this experiment was observing. I don’t think they would have detected anything else humanity has emitted.