Diff for "OpenSpace"

• http://wiki.keithl.com/OpenSpace

Open Space

David Ariosto . 2026 . BeavLib 338.4791 ARI . 372p w/ Notes and Index

• p011 Ch01 Launch Day

• p011 . Dr. Kam Ghaffarian . Steve Altemus . Intuitive Machines

• p011 . Odysseus lunar lander "Odie"

• p015 . Kam: "Imagine we have weekly trips to Mars"

  • No, I can't imagine. The synodic period between Earth-Mars conjunctions is around 780 days, more than 110 weeks. I can imagine weekly (perhaps daily) launches to an Earth-orbiting "Mars training academy", where potential Mars travelers spend months training in 0.38 gee centrifugal gravity. The top performing graduates are selected for the far more expensive trip to Mars (also in a 0.38 gee centrifugal gravity Aldrin Cycler spacecraft), up to 110 weeks later.

  • Hundreds of different skills will be required on Mars; some skills can be learned quickly, other skills may require 100 or more weeks to train. Early washouts from the 100 week training courses may still do well on a shorter training course for a simpler skill.

• p017 Ch02 Building Landers

• p017 . 2750K-melting "Columbium" actually Niobium since 1950 says IUPAC

  • I used John Clarke's sputter magnetron deposition system to make Josephson junctions

• p019 . vague "hydrogen and CO₂ reaction" Sabatier methanization reaction

• p22 Ch03 The View from China

• p022 . China Aerospace CAS Moon map by Chang'e 1 and Chang'e 2

• p022 . proposed Chinese lunar station network 100km radius from lander engine blast

• p023 . "LaGrande Points" (sic)

• p023 . Long Lehao chief designer of Long March 3A

  • 2600 kg to GTO, 1600 kg to Heliocentric HCO, 27 launches 1994-2018

• p025 . East Asian Observatory 1987-2015 UK Canada Netherlands funding, 2015-present PRC Japan Korea Taiwan funding

• p026 . 2013 Chang'e 3 lander

• p026 . and 5cm Ultraviolet Telescope 245-340 nm

• p028 Ch04 Problem in Houston

• p029 . Lingkong Tianxing Mach 4 SST

• p030 . Vikram Lander 2023

• p033 Ch05 A New Silk Road

• p035 . US law restricts NASA cooperation with China

• p037 . BeiDou Chinese tracking stations

• p037 . Zijin Mining

• p037 . Argentina Neo Lithium

• p037 . Rare earth extraction polluting Mongolia

• p038 . Bayan Obo mines

• p039 . Venus surface atmosphere density 65 kg/m³ (Earth 1.2 kg/m³) "you don't need a parachute" ... b.s.

  • Venera 7 500kg, 1 meter diameter 22 m/s, 50 mph

• p040 . libertarian Argentine President Javier Milei "no longer work with communist systems", but still reliant on Chinese income

• p042 Ch06 The Path to Interplanetary Space

• p043 . Argentina debt and financial crisis, China makes loans and builds satellite ground station

• p045 . China inter-satellite links with free-space optics

  • difficult to intercept

• p047 Ch07 Artemis

• p048 . end of 2025, new lunar lander contracts to compete with lagging(??) spaceX Reuters

• p050 . Atlas V ValveTech valve failure, launch scrub and rollback

• p052 Ch08 Selling the Moon

• p052 . RedWire 3D printing

  • 3D printing in space making spares as needed rather than stocking or shipping them (slow and costly with rockets)

• p055 . Trump says space is not a global commons, but a "legally and physically unique domain of human activity"
  • like the old Cold War, but without agreed standard guides

• p057 Ch09 Echos of China's Rise

• p058 . Zheng 1371-1435 explorer -> Ming treasure voyages

• p064 . Moon is Diaoyu/Senkaku Islands , Mars is [[ https://en.wikipedia.org/wiki/Scarborough_Shoal | Huangyan Island or Scarborough Shoal

• p064 . Hong Kong Aerospace Technology Group (many name changes)???

  • Djibouti launch site

• p065 . Tiangong Kaiwu plan

• p066 . 2021 newspaper report of special economic zone between Earth and Moon, $10T by 2050

• p067 Ch10 First Taikonaut

• p069 . 1996 Long March 3B veers sideways, destroys Intelsat 708 and Mayelin village

• p074 Ch11 Science in the Haunted 1950s

• p074 . tensor calculus Gregorio Ricci and student Tullio Levi-Civita

• p076 . before Trump, Chinese PhDs left permanently to US, now they stay

• p082 Ch12 The Pentagon's New Ride

• p086 Ch13 Moon Rush

• p092 Ch14 Red Star and Clover

• p096 Ch15 Peregrine

• p096 . Astrobiotic . WP . Perigrine lunar lander . CEO John Thornton

• p098 . Lunar Landers 24 successes, 29 failures

• p098 . Author says: One of the most difficult landing zones in solar system
  • Mars is 10 successes and 11 failures

• p099 Ch16 Final Descent - Columbia

• p102 .Loss of Challenger 1986 January, Loss of Columbia 28th flight 2003 January, Shuttle cancellation 2011

• p107 Ch17 Moon Mountain

• p110 Ch18 The Making of China's Commercial Rockets

• p114 Ch19 Imagining Tomorrow

• p122 Ch20 The Night Before Blastoff

• p121 . Intuitive Machines IM-1 "Odie"

• p124 . Stephen Altemus I.M. cofounder

  • graduated Embry Riddle 1987, 6 years after STS-1 April 1981 when I visited ERAU

• p127 . I.M. Propulsion Lead Rob Morehead p126 network problems, "outside actors

• p129 Ch21 Launch from the East

• p129 . Orienspace 2024 Jan 11 launch Gravity-1 400 tonnes solid fuel 6500 kg to LEO, 4200 kg to 500km SSO

• p129 . Yizhuang 20 launch companies

• p130 . SpaceX Starshield Golden Dome

• p134 Ch22 Countdown

• p137 . IM-1 Odie star tracker rejected good data because software rejected acceptable errors

• p139 Ch23 Lunar Payload

• p139 . Columbia Sportswear thermal insulation for IM-1

• p139 . Chris Stott Lonestar Data Holdings

• p141 . Eric Schmidt Relativity Space

• p142 . China SSPS article 2025 paywall [[ https://economictimes.indiatimes.com/news/international/us/another-three-gorges-dam-above-earth-china-plans-to-build-an-enormous-1-kilometer-wide-solar-power-

station-in-space-that-will-beam-continuous-energy-back-to-earth/articleshow/117309277.cms?from=mdr | indiatimes ]]

• p142 . "new designs and polymeric matricies" bafflegab

• p143 . Dennis Wingo Skycorp web server for ISS

• p143 . "Skynet-like satellite constellation" ... "more than 600 million cameras", no 3 satellites Tianwang two active

• p144 . Nonsense: "lunar dust and drastic temperature fluctuations can cause molecules within the electronics to radically (and destructively) expand and contract"

• p145 Ch24 Huntsville

• p145 . Ernst Stuhlinger 1913-2008 Paperclip -> US Army -> NASA, ion thrusters

• p148 . Altair 8080 "lacked a keyboard"

  • customers could purchase a serial interface board and a teletype, but many tasks did not require user interaction

• p149 . "something called C programming"

  • author seems computer illiterate, in the same way most drivers can't change a spark plug

• p151 Ch25 En Route to the Moon

• p152 . Apollo 11 Bruce McCandless capcom, role not described in book

• p152 . far side of Moon "extreme blackness" ... no, sunlight half the month, but no 0.15W/m² (110ppm) Earthlight

  • full sunshine can still launch lunar dust onto optics.
  • A lunar surface landing is 6 km/s high impulse from LEO, while a zero gee observatory at Earth-Sun L2 is less than 5km/s gradual low impulse from LEO.
  • Telescopes on the lunar far side is silly
• p153 . Odie misfired thrusters wasted 21% of total helium supply
• p154 . Odie LOS after engine burn ... expected, but author presents it as exciting anomaly

• p156 Ch26 Lunar Descent

• p164 Ch27 The SpaceX Effect

• p164 . Falcon 9 "three other launch sites" ... no, 3 total, 2 other launch sites

• p165 . Lee Rosen and Musk discuss landing first stages at Vandenburg launch in 2010. "parachutes don't work on Mars"

  • Propulsive Delta V from LEO to Lunar surface 6 km/s high gee landing

  • Propulsive Delta V from LEO to Mars surface 11 km/s

  • Propulsive Delta V from LEO to Phobos 7 to 7.5 km/s

    • microgee (12m/s) landing, so practically all the Delta V can be high ISP ion engine
    • I can imagine TWO Phobos landers tethered with a 30 km electrical/data cable for almost continuous power. Perhaps the cable itself can assist with the 11 m/s Mars landing.

• p166 . Richard Boltz

• p166 . Frank Tybor

• p166 . Relativity Space COO -> Distinguished Engineer Zach Dunn

• p166 . Ricky Lim

• p167 . Supersonic retropropulsion for RTLS Return To Launch Site

• p169 . first SpaceX RTLS "work with a company that was very drunk"
• p171 . "itinerant effect"??
• p171 . X-raying a satellite from 10 km distance, for example imaging a hidden niclear weapon

• p172 Ch28 The Art of War

• p173 . Kongming lantern flame-heated air paper balloon

• p174 . Golden Dome missile defense system

• p174 . Vantor, formerly Maxar Intelligence

• p175 . challenging when technology moves faster than human processes and policies

• p176 . Russian Oreshnik missile Mach 10

• p177 . measuring gravitational fields from small objects?

• p179 Ch29 Turning Point

• p179 . US Space Force general B. Chance Saltzman

• p182 Ch30 Starfish Prime

• p182 . 1962 1.4 MT Starfish Prime

• p182 . 6+ satellites failed including Telstar 1, 1/3 of satellites in orbit
• p183 . "widespread GPS outage" ... implying no damage to competitor systems?

• p184 . 2024 space junk damages Florida home

• p185 Ch31 Space Junk

• p185 . ESA Zero Debris Charter

• p187 . 2009 collision between Iridium 33 and 1995 derelict https://en.wikipedia.org/wiki/Kosmos_2251

• p189 . Japanese Astroscale space debris removal startup

• p193 . FAA told SpaceX to review itself after March 2025 Starship explosioj

• p197 Ch32 Italian Entrepreneurs in the Red Desert

• p198 . Mars Desert Research Station near Hanksville, SE Utah

• p200 . Feeding One Million People on Mars paywall

• p202 Ch33 Governing Mars

• p204 .

• p208 Ch34 Where is Everybody?

• p213 Ch35 The Search

• p217 Ch36 Defending Earth

• p221 Ch37 Impact

• p222 .

• p223 .

• p224 .

• p229 Ch38 Alpha Centauri Awaits

• p236 Ch39 Interstellar Voyagers

• p240 Ch40 Party in the Valley

• p244 .

• p244 .

• p247 .

• p249 Ch41 Nuclear Rockets

• p252 .

• p255 Ch42 Harnessing the Power of the Sun

• p255 .

• p262 Ch43 Ask a Fish About Water -- A Visit to CERN

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• p266 Ch44 The Antimatter Factory

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• p271 Ch45 Warp Drives

• p275 .

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• p277 Ch46 Casimir

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• p287 Ch47 Adaptation

• p287 .

• p290 Epilogue

• p290 .

• p292 .