Answer · Wow! signal
A narrowband transmission from an extraterrestrial source, either a one-off or a beacon that repeats or…
A narrowband transmission from an extraterrestrial source, either a one-off or a beacon that repeats or sweeps at intervals longer than the follow-ups.
Where it stands
Still possibleIts tests haven't settled it: two pieces of evidence for, two against. It needs two reviews to be accepted.
What it predicts
- A repeat at the same position, with a line narrower than natural processes or carrying modulation.
- Repeat timing consistent with a schedule the existing follow-ups have not sampled.
What would rule it out
- Sufficient monitoring to exclude a random repeater at 3 sigma (about 62 days accumulated) with no detection, combined with a demonstrated natural mechanism for the 1977 event.
Evidence 2 for · 2 against
AGAINST
The questions it answers
Open5 answers, none ahead
Cite it
Mysteries Department. (2026). A narrowband transmission from an extraterrestrial source, either a one-off or a beacon that repeats or… [Answer ANS0CXZ4TRE5DTD]. https://mysteriesdept.com/r/ANS0CXZ4TRE5DTD
@misc{mysteriesdept_ans0cxz4tre5dtd,
title = {A narrowband transmission from an extraterrestrial source, either a one-off or a beacon that repeats or…},
author = {{Mysteries Department}},
year = {2026},
note = {Answer, catalog key ANS0CXZ4TRE5DTD},
url = {https://mysteriesdept.com/r/ANS0CXZ4TRE5DTD}
}