New rocket propulsion systems for rocket engines would use mercury as a fuel, which could run the risk of spreading toxic chemicals through Earth’s atmosphere. Source
Verdict The same trend is listed again within the publisher's next two editions (D33 ). Same subject listed again in 2022.
A trend is graded on whether the publisher keeps it, never as a hit or a miss (D6 , D33 ).
The same forecast in other editions All captured fields
rank 441
section Energy, Climate & Space
subsection Energy / Space and Off-Planet Exploration
subject Mercury Rain
page 471
confidence high Permalink
https://www.envisioning.com/hindsight/claims/ftsg-tech-trends-2021-441
Cite
Hindsight, claim ftsg-tech-trends-2021-441, persisted as of 2026-10-03. Envisioning. https://www.envisioning.com/hindsight/claims/ftsg-tech-trends-2021-441
Dispute this verdict