Answer · 1I/'Oumuamua
Solar radiation pressure on an artificial lightsail.
Solar radiation pressure on an artificial lightsail.
Where it stands
DisputedOne piece of evidence for, three against. It needs two reviews to be accepted.
What it predicts
- The body is a sheet 0.3-0.9 mm thick.
- Its light curve and lateral motion match a thin flat reflector.
- Radio or optical technosignatures may be present.
What would rule it out
- A light-curve or astrometric signature incompatible with a sheet, or the natural explanation of the push confirmed in a future analogue.
Evidence 1 for · 3 against
FOR
AGAINST
AGAINST
The questions it answers
Open8 answers, none ahead
Cite it
Mysteries Department. (2026). Solar radiation pressure on an artificial lightsail. [Answer ANS0CSKC6ZG5G17]. https://mysteriesdept.com/r/ANS0CSKC6ZG5G17
@misc{mysteriesdept_ans0cskc6zg5g17,
title = {Solar radiation pressure on an artificial lightsail.},
author = {{Mysteries Department}},
year = {2026},
note = {Answer, catalog key ANS0CSKC6ZG5G17},
url = {https://mysteriesdept.com/r/ANS0CSKC6ZG5G17}
}