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← The real obstacle to a Mars landing is closed-loop life support, not propulsion.
17 connected korrents · 15 moments from 18 Sept 2014 to 18 Sept 2026.
Everything filed under space
space
Everything filed under climate change
climate change
Everything filed under consciousness
consciousness
Everything filed under war
war
Everything filed under America
America
Everything filed under solar
solar Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Read this korrent: The real obstacle to a Mars landing is closed-loop life support, not propulsion. The real obstacle to a Mars landing is closed-loop life support, not propulsion. Last stated 4 years ago
1 Jan 2023
MC
Maciej Cegłowski — holds since 2023-01-01 — tap for who they are
Same subject: A Mars base is not a backup plan for climate change or nuclear war, because self-sufficiency there is centuries away. — tap to centre the map on it A Mars base is not a backup plan for climate change or nuclear war, because self-sufficiency there is centuries away. Last stated 2 years ago
22 Dec 2024
AF
Adam Frank — holds since 2024-12-22 — tap for who they are
Same subject: Landing people on Mars would contaminate it and destroy the evidence of life we went there to find. — tap to centre the map on it Landing people on Mars would contaminate it and destroy the evidence of life we went there to find. Last stated 4 years ago
1 Jan 2023
MC
Maciej Cegłowski — holds since 2023-01-01 — tap for who they are
Same subject: A Chinese crewed landing on the Moon before America returns would be a defeat for the free world. — tap to centre the map on it A Chinese crewed landing on the Moon before America returns would be a defeat for the free world. Last stated 2 months ago
18 Aug 2026
CH
Casey Handmer — holds since 2025-10-31 — tap for who they are
EB
Eric Berger — holds since 2026-08-18 — tap for who they are
Same subject: Planetary protection rules will keep astronauts on Mars away from everything on Mars worth studying. — tap to centre the map on it Planetary protection rules will keep astronauts on Mars away from everything on Mars worth studying. Last stated 4 years ago
1 Jan 2023
MC
Maciej Cegłowski — holds since 2023-01-01 — tap for who they are
Same subject: The goal of spaceflight is the whole solar system, not any single destination the experts are arguing over. — tap to centre the map on it The goal of spaceflight is the whole solar system, not any single destination the experts are arguing over. Last stated 12 years ago
18 Sept 2014
WH
Wayne Hale — holds since 2014-09-18 — tap for who they are
Same subject: The Mars programme is a faith rather than a policy: it survives because people believe in it, not because it has a purpose. — tap to centre the map on it The Mars programme is a faith rather than a policy: it survives because people believe in it, not because it has a purpose. Last stated 4 years ago
1 Jan 2023
MC
Maciej Cegłowski — holds since 2023-01-01 — tap for who they are
Same subject: NASA can still be reorganised into an agency that exploits cheap heavy lift, and the next administrator will decide whether it is. — tap to centre the map on it NASA can still be reorganised into an agency that exploits cheap heavy lift, and the next administrator will decide whether it is. Last stated 2 years ago
2 Oct 2024
CH
Casey Handmer — holds since 2021-03-04 — tap for who they are
CH
Casey Handmer — no longer holds since 2024-10-02 — tap for who they are
Same subject: A crewed spacecraft does no work: putting people aboard is what stops a mission getting anything done. — tap to centre the map on it A crewed spacecraft does no work: putting people aboard is what stops a mission getting anything done. Last stated 4 years ago
1 Jan 2023
MC
Maciej Cegłowski — holds since 2023-01-01 — tap for who they are
Same subject: 'As long as it takes' lacks urgency, and it is a formula available to Ukraine's allies precisely because they are not the ones doing the fighting. — tap to centre the map on it 'As long as it takes' lacks urgency, and it is a formula available to Ukraine's allies precisely because they are not the ones doing the fighting. Last stated a year ago
10 Oct 2025
LF
Lawrence Freedman — holds since 2025-10-10 — tap for who they are
Same subject: 9/11 and Osama bin Laden's actions fundamentally shaped the world we live in today. — tap to centre the map on it 9/11 and Osama bin Laden's actions fundamentally shaped the world we live in today. Last stated a month ago
11 Sept 2026
MY
Matthew Yglesias — holds since 2026-09-11 — tap for who they are
Same subject: A ceasefire along the current lines would end the killing and still leave a long-term settlement between Russia and Ukraine possible. — tap to centre the map on it A ceasefire along the current lines would end the killing and still leave a long-term settlement between Russia and Ukraine possible. Last stated 2 months ago
26 Aug 2026
BM
Branko Milanovic — holds since 2026-08-26 — tap for who they are
Same subject: "Carbon intensity" metrics let oil companies claim climate progress even as their total emissions rise from increased production. — tap to centre the map on it "Carbon intensity" metrics let oil companies claim climate progress even as their total emissions rise from increased production. Last stated a month ago
9 Sept 2026
EA
Emily Atkin — holds since 2026-09-09 — tap for who they are
Same subject: A hybrid-electric airliner ends up heavier and more complex than the aircraft it replaces and delivers no fuel saving at all. — tap to centre the map on it A hybrid-electric airliner ends up heavier and more complex than the aircraft it replaces and delivers no fuel saving at all. Last stated 6 years ago
2 Apr 2021
BF
Bjorn Fehrm — holds since 2021-04-02 — tap for who they are
Same subject: A regional climate extreme set during an ecological disaster is not evidence that the whole country or planet was hotter — tap to centre the map on it A regional climate extreme set during an ecological disaster is not evidence that the whole country or planet was hotter Last stated 3 months ago
22 Jul 2026
ZH
Zeke Hausfather — holds since 2026-07-22 — tap for who they are
Same subject: A mystical state defies expression, so its quality must be experienced directly and cannot be passed on to others — tap to centre the map on it A mystical state defies expression, so its quality must be experienced directly and cannot be passed on to others
WJ
William James — holds since c. 1902 — tap for who they are
Same subject: A person is best understood as a loose jumble of barely intelligent, looping processes producing only the illusion of coherent subjectivity. — tap to centre the map on it A person is best understood as a loose jumble of barely intelligent, looping processes producing only the illusion of coherent subjectivity. Last stated a month ago
18 Sept 2026
MW
Matt Webb — holds since 2026-09-18 — tap for who they are
Same subject: A sense of coherent consciousness arises from experience being compressed into a single thread rather than from the brain's full underlying activity. — tap to centre the map on it A sense of coherent consciousness arises from experience being compressed into a single thread rather than from the brain's full underlying activity. Last stated 9 months ago
4 Feb 2026
SW
Stephen Wolfram — holds since 2026-02-04 — tap for who they are