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#megaconstellation — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #megaconstellation, aggregated by home.social.

  1. earth.com:
    "
    Low-Earth orbit is a 'house of cards' that is just 2.8 days from a catastrophic collision
    "
    ".. the system is getting so crowded, so maneuver-dependent, and so reliant on constant control that a rare disruption – especially a strong solar storm – could push it from “busy but manageable” to “we can’t keep up” surprisingly fast."

    earth.com/news/low-earth-orbit

    1.5.2026

    #CRASHClock #LEO #MegaConstellation #Raumfahrt #Satelliten #SolarStorm #SpaceFlight #SpaceWeather #Weltraumwetter

  2. And all 32 #AmazonLeo satellites have been deployed by the first #Ariane 64: good news for Arianespace and Amazon but probably bad news for astronomy as the previous satellites of this #megaconstellation have proven to be brighter than they should be. As this diagram from the recent paper "Brightness Characterization and Modeling for Amazon Leo Satellites" - arxiv.org/abs/2601.07708 - shows they are almost always brighter than the informally established 7 mag. limit. And there are no indications that the design of the 32 added to the constellation today had been modified to make them dimmer ... while the next Ariane launch will carry more of them.

  3. #Starlink satellites lift off on #SpaceX Falcon 9 from Cape Canaveral (video)

    By Robert Z. Pearlman, Wednesday (Jan. 14).

    Excerpt: "SpaceX added 29 more Starlink satellites to its low Earth orbit #megaconstellation today (Jan. 14).

    "A Falcon 9 rocket carrying the broadband internet relay units launched from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida on Wednesday. The rocket reached its preliminary orbit about nine minutes after the 1:08 p.m. EST (1808 GMT) liftoff."

    Read more / watch video:
    space.com/space-exploration/la

    #LEO #KesslerSyndrome #KesslerEffect #SpaceJunk #SpaceDebris #Satellites #LowEarthOrbit

  4. #KesslerSyndrome in the news...!

    2.8 Days to Disaster - Why We Are Running Out of Time in Low Earth Orbit

    By Andy Tomaswick - December 15, 2025

    Excerpt: "According to their calculations, as of June 2025, if satellite operators were to lose their ability to send commands for avoidance maneuvers, there would be a catastrophic collision in around 2.8 days.

    "Compare that to the 121 days that they calculated would have been the case in 2018, before the #megaconstellation era, and you can see why they are concerned.

    "Perhaps even more disturbingly, if operators lose control for even just 24 hours, there's a 30 percent chance of a catastrophic collision that could act as the seed case for the decades-long process of Kessler syndrome."

    Read more:
    universetoday.com/articles/28-

    #KesslerEffect #LEO #Grounded #ElonMuskSucks #Starlink #SpaceJunk #DarkSkies

  5. "United Launch Alliance ended its live video coverage of the mission a few minutes after the launch at the request of Amazon, which insisted on a level of secrecy normally reserved for spy satellites. Amazon has not publicly released any photos or illustrations of the Kuiper satellites, breaking from the convention established by other Western companies with megaconstellations."

    arstechnica.com/space/2025/04/

    #Space #Satellites #AmazonKuiper #Launch #Megaconstellation

  6. Are We Going to Mess Up Outer Space Too?

    As nations jockey for military edge in orbit, there is a growing threat from above

    by Daniel Munro Updated 8:49, Jun. 19, 2024

    "Over the past decade, however, space has become much more contested and harder to govern. Nearly 1,000 private companies now offer space-based products and services. Expanding #SatelliteConstellations offer better internet access in remote and developing communities, enabling more people to access online health care, work remotely, and connect with family and friends. Space technologies also support better weather and climate monitoring, improve navigation and transportation logistics, and enhance agricultural productivity through the use of land- and water-quality sensors. All this has contributed to a space economy with an estimated value of $447 billion (US), on a trajectory to reach $1 trillion by 2030. And missions focused on exploration and scientific discovery are expanding—including the US-led Artemis program that aims to land human beings on the moon for the first time in over fifty years.

    "But this new space age poses substantial risks. #OrbitalDebris from inactive satellites, discarded rocket parts, and anti-satellite #weapons tests threatens the infrastructure on which our social and economic well-being now depends, as well as the lives of astronauts working on space stations. In addition to the 30,000 objects large enough to track, there are an estimated 1 million debris fragments—between one and ten centimetres in diameter—that are too small to be picked up by ground-based radar and surveillance networks. Experts put the likelihood of future collisions between these objects at near certainty, with potential for cascading and catastrophic damage including entire satellite communication systems being taken out and larger debris fragments falling to #Earth and threatening lives and #ecosystems."

    Read more:
    thewalrus.ca/mess-up-outer-spa

    #DarkSkies #DarkSkiesForAll #KesslerSyndrome #SpaceX #SpacePollution #KesslerEffect #MegaConstellation

  7. #Satellite #megaconstellation impacts on #astronomy are again on the agenda for the UNOOSA Committee on Peaceful Uses of Outer Space Science and Technical Subcommittee. This event, organized by the Chilean and Spanish delegations, the European Southern Observatory, SKA Observatory and the European Astronomical Society, will be held on the sidelines.

    #DarkAndQuietSkies #COPUOS #Space #SpaceSustainability