Are we visible to advanced alien civilizations?

2023/08/16 by Z. N. Osmanov, Z. Osmanov, Osmanov, Z. N. · 2 voices · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Earth Systems and Cosmic Evolution #Space Science and Extraterrestrial Life #physics.pop-ph

paper · pdf · doi:10.48550/arxiv.2308.08689

openalex publication_date 2023/08/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We considered the question of how our artificial constructions are visible to advanced extraterrestrial civilizations. Taking the universality of the laws of physics, we found that the maximum distance where the detection is possible is of the order of 3000 ly and under certain conditions Type-II advanced alien societies might be able to resolve this problem.

Cited by

• Earth Detecting Earth: At What Distance Could Earth’s Constellation of Technosignatures Be Detected with Present-day Technology?

Discussions

• Are we visible to advanced alien civilizations? [hn, 29 points, 55 comments]
• So maybe the Great Wall of China is visible from space. [bsky, 3 points, 1 comments]

Related

• Are Alien Civilizations Technologically Advanced?
• Limits of Detecting Extraterrestrial Civilizations
• In Search of Extraterrestrial Artificial Intelligence Through Dyson Sphere–like Structures around Primordial Black Holes
• Earth Detecting Earth: At What Distance Could Earth’s Constellation of Technosignatures Be Detected with Present-day Technology?
• Blink and you'll miss it -- How Technological Acceleration Shrinks SETI's Narrow Detection Window