home.social
  1. #Vulcanโ€™s future might be constrained. As competition intensifies, with the potential for #SpaceX to lower prices in response, Vulcan could face challenges in remaining cost-competitive. We witness the possibility of an eraโ€™s conclusion, observing the launch of massive, #expensive rockets โ€” a spectacle that may be replaced by more economically #efficient alternatives in the aerospace industry everydayastronaut.com/how-does

    #LaunchCost

  2. RE: mastodon.social/@arstechnica/1

    #Isaacman said it is important for #SpaceXโ€™s #Starship and #BlueOriginโ€™s #NewGlenn rocket ๐Ÿš€ to reach higher launch cadences to support not just Artemis III but many future missions to the lunar ๐ŸŒ™ surface. #NASA is clearly watching both closely.

    During Artemis III, the #Orion spacecraft will launch (presumably with four astronauts ๐Ÿง‘โ€๐Ÿš€) on a #SLS rocket. In Earth orbit, they will rendezvous with one or both of NASAโ€™s #HLS (Starshipโ€™s upper stage and a modified #BlueMoon lander)

    #Artemis

  3. RE: mastodon.social/@arstechnica/1

    #Orionโ€™s big test is yet to come with the fiery ๐Ÿ”ฅ #reentry through Earthโ€™s atmosphere on Friday.

    So far, itโ€™s looking like the rocket and spaceship needed for a lunar landing are getting there for #NASA. The biggest remaining piece of the architecture is the Human Landing System.

    #HLS #SpaceX #BlueOrigin #Artemis

  4. #LRO launched in ๐Ÿ“† 2009 on a mission to create high-resolution ๐Ÿ” topography #maps for future #NASA astronauts. The telescope ๐Ÿ”ญ and camera system can see details up to 2.5 meters across. The cameras have captured views of the #Apollo sites so detailed you can see astronautsโ€™ footprints ๐Ÿ‘ฃ planetary.org/space-missions/l

    #Moon #mapping

  5. #SpaceWeather : #Sun โ˜€๏ธ activity jumped to moderate over the past day, with 24 total flares. Three of them were M, or moderate flares, and one was edging up toward being an X flare

    Forecast:

    ๐Ÿ“† April 4 we might get more G1-G2 (minor-moderate) #geomagnetic storms
    ๐Ÿ“† April 5 possibly with more G1 enhancements
    ๐Ÿ“† April 6 unsettled-to-active conditions as effects from the solar wind stream and #CME start to subside

    earthsky.org/sun/sun-news-acti

  6. The basis of #Michelinโ€™s lunar tire ๐Ÿ›ž is an airless design using polyether ether ketone (#PEEK) thermoplastic that has a useful operating temperature up to 250C ๐ŸŒก๏ธ. The material must be soft and flexible but also rigid. The contact surface is wide like a snowshoe because the regolith is fluffy and volatile, so this will be needed to maintain traction. Michelin also uses an extinct volcano as part of its testing process, because the fine rocky dust is both soft and abrasive forbes.com/sites/jamesmorris/2

  7. Unlike the easily predictable #radiation โ˜ข๏ธ exposures from flying through the Van Allen Belts or basking in the background flux of #galactic ๐ŸŒŒ cosmic rays, the dose an #astronaut gets from #solar โ˜€๏ธ activity can vary enormously. Predicting #SpaceWeather remains a decidedly inexact ๐Ÿ”ฎ #science. High-energy #protons and #ions can tear through metal and flesh alike, damaging #DNA and other delicate cellular machinery. Typically, these showers are linked to #CME scientificamerican.com/article

  8. #SpaceWeather : The chance for strong flares โ˜€๏ธ increased to 20%. The main driver is active region #AR4405

    Forecast:

    ๐Ÿ“† April 1: A #CME may provoke enhancements up to G2 (moderate) geomagnetic storming late today

    ๐Ÿ“† April 2: G1 (minor) #geomagnetic storm levels expected

    ๐Ÿ“† April 3: Unsettled to active conditions may occur. A chance of G1 (minor) storm intervals exists if the next coronal holeโ€™s fast solar wind stream arrives earlier than expected

    earthsky.org/sun/sun-news-acti

  9. #NASA will launch the #SpaceReactor1 Freedom, the first nuclear โ˜ข๏ธ powered #interplanetary spacecraft, to #Mars ๐Ÿ”ด before the end of ๐Ÿ“† 2028. Nuclear #ElectricPropulsion enables high power missions beyond #Jupiter ๐Ÿช where #solar arrays are not effective nasa.gov/news-release/nasa-unv

    #SpacecraftPropulsion #SR1

  10. โ€œThe goal of #Isaacman is 30 landings in three yearsโ€. Only #Fireflyโ€™s #BlueGhost 1 mission a year ago was a complete success. The two #IntuitiveMachines landers fell over upon landing. #Astroboticโ€™s #Peregrine lander malfunctioned hours after launch and was unable to attempt a landing.

    There are four #CLPS missions currently scheduled for launch this year: Astroboticโ€™s Griffin-1, #BlueOriginโ€™s #BlueMoon Mark 1, Fireflyโ€™s Blue Ghost 2 and Intuitive Machinesโ€™ #IM3 spacenews.com/nasa-considering

  11. 2026 #lunar ๐ŸŒ™ missions

    โ€ข #Astroboticโ€™s #Griffin lander is scheduled for July 2026, will carry #Astrolabโ€™s FLEX rover
    โ€ข #IntuitiveMachines' third #NovaC mission in the second half of the year will carry payloads for #NASA, #ESA, and #KASI
    โ€ข #BlueOrigin's first lunar landing with its #BlueMoon #Mark1 craft
    โ€ข #Firefly's #BlueGhost Mission 2 in November will carry five payloads to the lunar surface
    โ€ข #China is planning a #ChangE 7 landing near the lunar south pole

    nasaspaceflight.com/2026/01/sp

    #Moon

  12. #BE4 is a LNG-fueled engine capable of producing 2,450 kN thrust ๐Ÿš€ blueorigin.com/engines/be-4
    #BE3U (upper stage) is a liquid oxygen/liquid hydrogen engine capable of generating 778 kN thrust in vacuum ๐ŸŒŒ blueorigin.com/engines/be-3u

    #NewGlenn #BlueOrigin

  13. ๐Ÿ‡จ๐Ÿ‡ณ #ChangE8 ๐Ÿ“† 2028 : โ€œThrough data sharing and task delegation, the #robots ๐Ÿค– will work together like a team, achieving objectives that would be impossible for independent robots to completeโ€ scmp.com/news/china/science/ar

    #SpaceRobot #MoonMining #ISRU

  14. Membership and contribution ๐Ÿ’ฐ to en.wikipedia.org/wiki/European

    ๐Ÿ‡ช๐Ÿ‡บ @[email protected] 28.4%
    ๐Ÿ‡ซ๐Ÿ‡ท France 24.5%
    ๐Ÿ‡ฉ๐Ÿ‡ช Germany 21.1%
    ๐Ÿ‡ฎ๐Ÿ‡น Italy 14.1%
    ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom 9.1%
    ๐Ÿ‡ง๐Ÿ‡ช Belgium 5%
    ๐Ÿ‡ช๐Ÿ‡ธ Spain 4.6%
    ๐Ÿ‡จ๐Ÿ‡ญ Switzerland 3.6%

  15. ๐Ÿ“† 31 Aug 2023 ancestors went through a severe population bottleneck with about 1280 ๐Ÿ“‰ breeding individuals between around 930,000 and 813,000 years ago. The bottleneck lasted for about 117,000 years and brought human ancestors close to โ˜ ๏ธ. arstechnica.com/science/2023/0

    Picture : commons.wikimedia.org/wiki/Fil

  16. ๐Ÿ“† May 2021 "The known of damage caused by came as early as ๐Ÿ“† 1969. An had fallen from and hit a that was traveling off the of , five crewmen. initially kept that a ๐Ÿ•ต๏ธ, out of a desire to avoid provoking a conflict with " washingtonpost.com/world/2021/

    Picture (symbolic) :cc_zero: commons.wikimedia.org/wiki/Fil

  17. How many agencies did you know ?
    ๐Ÿ‡ฉ๐Ÿ‡ฟ ๐Ÿ‡ฆ๐Ÿ‡ด ๐Ÿ‡ฆ๐Ÿ‡ท ๐Ÿ‡ง๐Ÿ‡ญ ๐Ÿ‡ง๐Ÿ‡ท ๐Ÿ‡จ๐Ÿ‡ฆ ๐Ÿ‡จ๐Ÿ‡ณ ๐Ÿ‡ฉ๐Ÿ‡ฐ ๐Ÿ‡ช๐Ÿ‡ฌ ๐Ÿ‡ธ๐Ÿ‡ป ๐Ÿ‡ซ๐Ÿ‡ท ๐Ÿ‡ฉ๐Ÿ‡ช ๐Ÿ‡ฎ๐Ÿ‡ณ ๐Ÿ‡ฎ๐Ÿ‡ฉ ๐Ÿ‡ฎ๐Ÿ‡ฑ ๐Ÿ‡ฎ๐Ÿ‡น ๐Ÿ‡ฏ๐Ÿ‡ต ๐Ÿ‡ฐ๐Ÿ‡ช ๐Ÿ‡ฑ๐Ÿ‡บ ๐Ÿ‡ฒ๐Ÿ‡ฝ ๐Ÿ‡ณ๐Ÿ‡ฟ ๐Ÿ‡ต๐Ÿ‡ฐ ๐Ÿ‡ต๐Ÿ‡ช ๐Ÿ‡ต๐Ÿ‡ญ ๐Ÿ‡ฐ๐Ÿ‡ท ๐Ÿ‡ท๐Ÿ‡ด ๐Ÿ‡จ๐Ÿ‡ณ ๐Ÿ‡ธ๐Ÿ‡ฆ ๐Ÿ‡ฟ๐Ÿ‡ฆ ๐Ÿ‡ช๐Ÿ‡ธ ๐Ÿ‡บ๐Ÿ‡ฆ ๐Ÿ‡ฌ๐Ÿ‡ง ๐Ÿ‡บ๐Ÿ‡ธ ๐Ÿ‡ฟ๐Ÿ‡ผ ๐Ÿ‡ช๐Ÿ‡บ ๐Ÿ‡ช๐Ÿ‡บ unoosa.org/oosa/en/ourwork/spa