Linking pages
- If Aliens Spot Us First, What Signs of Intelligence Will They See? https://gizmodo.com/if-aliens-spot-us-first-what-signs-of-intelligence-will-they-see-2000559505 342 comments
- How Far Away Could We Detect... Ourselves? - Universe Today https://www.universetoday.com/170747/how-far-away-could-we-detect-ourselves/ 1 comment
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