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← The real obstacle to a Mars landing is closed-loop life support, not propulsion.

17 connected korrents · 15 moments on record from 18 Sept 2014 to 7 Sept 2026.

Everything filed under America America Everything filed under climate change climate change Everything filed under China China Everything filed under solar solar Same subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame subjectSame 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 isclosed-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 forclimate change or nuclear war,because self-sufficiency there iscenturies 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 wouldcontaminate it and destroy theevidence of life we went there tofind. 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 Moonbefore America returns would be adefeat for the free world. Last stated 3 weeks 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 keepastronauts on Mars away fromeverything 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 wholesolar system, not any singledestination the experts are arguingover. 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 ratherthan a policy: it survives becausepeople believe in it, not because ithas 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 intoan agency that exploits cheap heavylift, and the next administratorwill 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 stopsa 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: A country cannot fund its own industrial strategy and call the same policy cheating when China does it. — tap to centre the map on it A country cannot fund its ownindustrial strategy and call thesame policy cheating when China doesit. Last stated a year ago 15 May 2025 HR Hannah Ritchie — holds since 2025-05-15 — tap for who they are Same subject: A few square miles at the Moon's south pole are the only lunar real estate that matters, and whoever gets there first sets the terms. — tap to centre the map on it A few square miles at the Moon'ssouth pole are the only lunar realestate that matters, and whoevergets there first sets the terms. Last stated 3 weeks ago 18 Aug 2026 EB Eric Berger — holds since 2026-08-18 — tap for who they are Same subject: A large, sustained AI capability lead by either the US or China could shift the global balance of power between them. — tap to centre the map on it A large, sustained AI capabilitylead by either the US or China couldshift the global balance of powerbetween them. Last stated 2 days ago 5 Sept 2026 NS Noah Smith — holds since 2026-09-05 — tap for who they are Same subject: AI-related cybersecurity damage over the next year or two will fall well short of the harm caused by Covid or global warming — tap to centre the map on it AI-related cybersecurity damage overthe next year or two will fall wellshort of the harm caused by Covid orglobal warming Last stated 6 days ago 1 Sept 2026 TC Tyler Cowen — holds since 2026-09-01 — tap for who they are Same subject: All five mass extinctions were ultimately climate change — the climate shifting faster than life could adapt to it. — tap to centre the map on it All five mass extinctions wereultimately climate change — theclimate shifting faster than lifecould adapt to it. Last stated a year ago 4 Sept 2025 DH Dave Hone — holds since 2025-09-04 — tap for who they are Same subject: Canada should build a pipeline carrying at least a million barrels a day of low-emission Alberta oil to Asia, paired with large-scale carbon capture. — tap to centre the map on it Canada should build a pipelinecarrying at least a million barrelsa day of low-emission Alberta oil toAsia, paired with large-scale carboncapture. Last stated 3 months ago 28 May 2026 MC Mark Carney — holds since 2026-05-28 — tap for who they are Same subject: A country cannot have radical technological breakthroughs and also refuse to tolerate uncomfortably rich people, because the financial system it resents is what funds the innovation. — tap to centre the map on it A country cannot have radicaltechnological breakthroughs and alsorefuse to tolerate uncomfortablyrich people, because the financialsystem it resents is what funds theinnovation. Last stated a year ago 13 Aug 2025 KJ Keyu Jin — holds since 2025-08-13 — tap for who they are Same subject: A country's large trade deficit in manufactured goods reduces its manufacturing employment below what it would be with balanced trade. — tap to centre the map on it A country's large trade deficit inmanufactured goods reduces itsmanufacturing employment below whatit would be with balanced trade. Last stated today 7 Sept 2026 PK Paul Krugman — holds since 2026-09-07 — tap for who they are Same subject: A nuclear war between the United States and Russia would kill five billion people. — tap to centre the map on it A nuclear war between the UnitedStates and Russia would kill fivebillion people. Last stated 2 years ago 22 Mar 2024 AJ Annie Jacobsen — holds since 2024-03-22 — tap for who they are
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At the centre The real obstacle to a Mars landing is closed-loop life support, not propulsion. Last stated 1 Jan 2023 · 4 years ago Holds Maciej Cegłowski Read this korrent →