HN Hall of Fame
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Type and topic

Reference on space and transportation

Every link here is classified as reference on space and transportation.

Hall of Fame
6
Candidates
7
Median span
7.9 yrs

observed on HN

First seen
2009

oldest HN appearance

Strongest Hall records

6 items

Recently resurfaced

latest 20+ point return

Candidates

Browse 7 candidates
Kessler Syndrome
en.wikipedia.org 15 submissions · 15 people · 11.3 years
Candidate Resurfaced 2020-02-13
Needs:2 breakout events 720+ days apart
63max pts
Sweden Solar System
en.wikipedia.org 9 submissions · 9 people · 12.9 years
Candidate Resurfaced 2023-12-31
Needs:2 breakout events 720+ days apart
224max pts
Olbers' Paradox
en.wikipedia.org 10 submissions · 10 people · 7.9 years
Candidate Resurfaced 2022-03-27
Needs:2 breakout events 720+ days apart
162max pts
Privately-Owned Rail Cars
www.amtrak.com 3 submissions · 3 people · 6.4 years
Candidate Resurfaced 2025-08-21
Needs:5 submissions
487max pts
Vacuum Airship
en.wikipedia.org 5 submissions · 5 people · 11.5 years
Candidate Resurfaced 2023-07-20
Needs:2 breakout events 720+ days apart
101max pts
Holden's Lightning Flight
en.wikipedia.org 6 submissions · 3 people · 5.2 years
Candidate Resurfaced 2026-08-31
Needs:2 breakout events 720+ days apart
234max pts
Voith Schneider Propeller
en.wikipedia.org 3 submissions · 3 people · 5.0 years
Candidate Resurfaced 2026-02-15
Needs:2 breakout events 720+ days apart5 submissions3 active years
169max pts