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Space Debri
Source: Breaking Defense https://breakingdefense.com/2021/04/asterx-2021-french-space-forces-reach-for-higher-orbit/ The French military is moving apace in keeping with Paris’s determination to, at a minimum, keep its rank as the third international space power in an increasingly large and competitive club of nations. By  MURIELLE DELAPORTE on April 09, 2021 PARIS: France led its first multinational military space exercise last month,...
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‘Red alerts’ of a potential disaster were sent to the companies By Joey Roulette  Apr 9, 2021 https://www.theverge.com/2021/4/9/22374262/oneweb-spacex-satellites-dodged-potential-collision-orbit-space-force Two satellites from the fast-growing constellations of OneWeb and SpaceX’s Starlink dodged a dangerously close approach with one another in orbit last weekend, representatives from the US Space Force and OneWeb said. It’s the first known collision avoidance event...
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KING 5 : Stephen Vilke’s cameras pointed at Puget Sound from Bainbridge Island captured debris from a SpaceX rocket shooting across the sky on March 25, 2021.
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M Kocifaj, F Kundracik, J C Barentine, S Bará, The proliferation of space objects is a rapidly increasing source of artificial night sky brightness, Monthly Notices of the Royal Astronomical Society: Letters, 2021;, slab030, https://doi.org/10.1093/mnrasl/slab030 Abstract The population of artificial satellites and space debris orbiting the Earth imposes non-negligible constraints on both space operations and ground-based optical...
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Source: Royal Astronomical Society https://ras.ac.uk/news-and-press/news/satellites-contribute-significant-light-pollution-night-skies by Robert Massey on Mon, 29/03/2021 Scientists reported new research results today suggesting that artificial objects in orbit around the Earth are brightening night skies on our planet significantly more than previously understood. The research, accepted for publication in Monthly Notices of the Royal Astronomical Society: Letters, finds that the number of objects orbiting...
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Source https://www.satellitetoday.com/broadband/2021/01/04/viasat-requests-fcc-look-into-environmental-impact-of-spacexs-starlink-constellation/ By Rachel Jewett | January 4, 2021 Viasat has taken issue with SpaceX’s request to lower the orbital altitude of its Starlink satellite constellation, and requested the FCC to prepare an environmental impact statement on Starlink.  In an FCC filing on Dec. 22, Viasat outlined its environmental concerns with Starlink and with SpaceX’s request to relocate the satellites to...
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Source: https://spacenews.com/upper-stages-top-list-of-most-dangerous-space-debris/ by Jeff Foust — October 13, 2020 WASHINGTON — While launch providers are doing a better job at disposing of upper stages left behind in orbit, rocket bodies still constitute the most dangerous pieces of orbital debris. The European Space Agency released Oct. 12 its annual Space Environment Report, the agency’s assessment of orbital debris. The report...
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Source: https://www.theguardian.com/science/2020/sep/12/stars-astronomy-spacex-satellite-elon-musk Miniature satellites open up a world of technological possibility. But experts say they degrade the astronomical landscape. Stuart Clark, Sat 12 Sep 2020 17.00 BST The natural serenity of the night sky is a touchstone for all of us. Everyone alive today looks at the same stars no matter where they are located on the...
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by Caleb Henry — July 30, 2020 WASHINGTON — The U.S. Federal Communications Commission on July 30 approved Amazon’s request to operate a constellation of roughly 3,200 internet satellites in low Earth orbit.  The FCC said Amazon has until July 30, 2026 to launch at least 50% of its satellites in order to maintain its authorization, and until...
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Image: ESA What is the Kesller Syndrome? The Kessler syndrome (also called the Kessler effect, collisional cascading, or ablation cascade), proposed by NASA scientist Donald J. Kessler in 1978, is a theoretical scenario in which the density of objects in low Earth orbit (LEO) due to space pollution is high enough that collisions between objects could cause a cascade in which each collision generates space debris that increases the likelihood...
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