Toots for JohnBarentine@astrodon.social account

Written by Dr. John Barentine FRAS on 2025-02-03 at 21:04

Ontario, Canada Premier Doug Ford in response to U.S. tariffs on Canadian imports: “We’ll be ripping up the province’s contract with Starlink. Ontario won’t do business with people hellbent on destroying our economy. President Trump is the only person to be blamed. Maybe Elon Musk can call his buddy?”

https://apnews.com/article/canada-trump-tariffs-ontario-musk-2bc1b52b0390aee9686b270606c51573

[#]Space #Satellites #SpaceX #Starlink #Musk #Canada #Tariffs

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Written by Dr. John Barentine FRAS on 2025-02-03 at 20:16

"Uncontrolled space debris raining down toward Earth is becoming a serious concern as activity in the skies ramps up."

https://www.scimag.news/news-en/104963/skyfall-why-uncontrolled-space-debris-could-threaten-your-flight/

[#]Space #SpaceDebris #SpaceEnvironment #SpaceSustainability

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Written by Dr. John Barentine FRAS on 2025-02-03 at 20:13

EU Statement at the 62nd Session of the Scientific and Technical Sub-Committee of the United Nations Committee on the Peaceful Uses of Outer Space, 3 February 2025: https://www.eeas.europa.eu/delegations/vienna-international-organisations/eu-statement-62nd-session-scientific-and-technical-sub-committee-united-nations-committee-peaceful_en

"The EU and its Member States strongly support the rules-based international order, with the United Nations at its core, and a multilateral approach to international affairs."

Includes an appeal to "the universalisation of the Outer Space Treaty for the preservation of a secure, safe, stable and sustainable outer space environment."

[#]Space #SpaceSustainability #SpaceEnvironment #OuterSpaceTreaty #OST #COPUOS

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Written by Dr. John Barentine FRAS on 2025-02-03 at 19:16

The U.S. All-domain Anomaly Resolution Office (AARO) has released a white paper titled "Correlations of Starlink Satellite Flaring with UAP Observations".

https://www.aaro.mil/Portals/136/PDFs/Information%20Papers/AARO_Satellite_Flaring_Paper.pdf

[#]Space #UAP #SpaceEnvironment #Satellites #Flares #Starlink

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Written by Dr. John Barentine FRAS on 2025-02-03 at 17:15

Obtrusive space advertising will impact the visual appearance of the night sky, interfere with ground-based astronomy, and it may have currently unknown environmental effects. But there's still a chance to get out ahead of (and even prevent) this problem.

Read more: http://www.darkskyconsulting.com/blog/space-advertising-the-next-frontier

📷: NASA

[#]Space #SpacePolicy #SpaceAdvertising #SpaceEnvironment #COPUOS

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Written by Dr. John Barentine FRAS on 2025-02-02 at 20:10

"[S]pace today is dominated by commercial and nongovernment actors, with thousands of satellites in orbit and many thousands more on the way. The OST [Outer Space Treaty] was not designed for this type of space environment."

https://www.lawfaremedia.org/article/the-cislunar-competition

[#]Space #Satellites #SpacePolicy #SpaceLaw #OuterSpaceTreaty #CommercialSpace

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Written by Dr. John Barentine FRAS on 2025-02-01 at 23:19

A satirical take on #SpaceAdvertising: "Astronomers will argue that gigantic sky ads hinder our ability to explore the cosmos, and educate our children on the wonders of outer space. That it would prevent astronomers from uncovering the aforementioned mysteries of the universe. That it would be fucked up beyond measure to start selling the sky. But we need to take care of our home the best way we know how. By taking the natural resources god blessed us with and siphoning as much money out of them as humanly possible."

https://www.barstoolsports.com/blog/3537134/space-advertising-could-be-our-next-great-revenue-source

[#]Satire #Space

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Written by Dr. John Barentine FRAS on 2025-02-01 at 19:52

Here's a great explainer video on "the runaway debris threat to space technology" from the Financial Times.

https://channels.ft.com/en/tech/the-runaway-debris-threat-to-space-technology/

[#]Satellites #SpaceDebris #SpaceEnvironment #SpaceEnvironmentalism

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Written by Dr. John Barentine FRAS on 2025-02-01 at 07:35

“The federal webpage for an observatory named for the late astronomer Vera Rubin was edited to omit any recognition of the fact that science remains a male-dominated field or that the observatory was working to be more inclusive.”

https://www.propublica.org/article/vera-rubin-astronomer-dei-trump

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Written by Dr. John Barentine FRAS on 2025-01-31 at 21:51

More coverage of obtrusive space advertising, by @Gizmodo. "Astronomers are calling for a global ban on space advertising, in hopes that the issue can be nipped in the bud amid a period of rapid commercialization and privatization in spaceflight."

https://gizmodo.com/astronomers-call-for-global-ban-on-space-advertising-before-its-too-late-2000555264

[#]Space #SpaceAdvertising #SpaceEnvironment #SpaceLaw

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Written by Dr. John Barentine FRAS on 2025-01-31 at 17:49

Controlled de-orbiting of #satellites at end of mission is a responsible practice and @SpaceX deserves credit for doing so.

But this entails depositing an unknown amount of material in the upper #atmosphere, with presently unknown #environmental effects. We don't know how much of which metals this involves, but "burning" things up in the atmosphere involves ablation and vaporization of materials. There are legitimate concerns that this may upset the thermal balance of the atmosphere, amounting to a giant uncontrolled #geoengineering experiment.

https://www.pcmag.com/news/mass-retirement-spacex-spotted-deorbiting-dozens-of-starlink-satellites

[#]Space #SpaceEnvironment #SpaceEnvironmentalism

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Written by Dr. John Barentine FRAS on 2025-01-30 at 16:36

Good @spacenews_inc article on the current direct-to-cell market state of affairs, but they buried the lede: @SpaceX’s current satellite architecture does not meet FCC operating rules.

https://spacenews.com/iphone-starlink-compatibility-sends-direct-to-smartphone-stocks-sliding/

[#]Satellites #Space #Radio

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Written by Dr. John Barentine FRAS on 2025-01-29 at 22:17

The company also associates with some very choice individuals.

Like sanctioned Russian oligarchs.

https://www.bloomberg.com/news/articles/2025-01-29/russian-oligarch-held-stake-in-spacex-via-trust-while-sanctioned

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Written by Dr. John Barentine FRAS on 2025-01-28 at 22:45

The Committee on Human Rights of @thenasem has put together "an array of resources meant to support researchers and scholars in preventing and responding to targeted attacks" in the #UnitedStates.

https://www.nationalacademies.org/chr/resources-for-researchers-and-scholars-under-threat-in-the-united-states

[#]Science #Scholarship #AcademicFreedom

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Written by Dr. John Barentine FRAS on 2025-01-28 at 22:35

A reminder that broadband-from-space isn't about bridging the global digital divide or serving poor people. It's just another for-profit enterprise that seeks to exploit a public commons for private gain.

"#Starlink has refused to comply with the country’s BEE (Black Economic Empowerment) – 30 per cent ownership to local historically disadvantaged people."

https://technext24.com/2025/01/28/starlink-south-africa-waive-bee-policy/

[#]Space #SouthAfrica

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Written by Dr. John Barentine FRAS on 2025-01-28 at 20:53

"'This is one of the highest probabilities of an impact from a significantly sized rock ever.'"

https://www.space.com/180-foot-asteroid-1-in-83-chance-hitting-Earth-2032

[#]Asteroid #PlanetaryDefense #2024YR4

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Written by Dr. John Barentine FRAS on 2025-01-28 at 20:17

"The American Astronomical Society has called for a global ban on intrusive space advertising through international treaties or laws. It also asked the US delegation to the #UN Committee on the Peaceful Uses of Outer #Space to initiate the process." (via @ust_magazine)

https://universemagazine.com/en/astronomers-beg-not-to-show-ads-from-space/

[#]COPUOS #SpaceAdvertising #SpacePolicy

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Written by Dr. John Barentine FRAS on 2025-01-28 at 20:04

I love the Taiwan Dark-Sky Association's new communications around the incoming #YearOfTheSnake in the Chinese calendar: light pollution is like "a snake with limbs, making movement less free and losing more". 🐍 #LunarNewYear2025

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Written by Dr. John Barentine FRAS on 2025-01-28 at 19:40

Thanks to @skyandtelescope for publishing this story about light pollution and satellite impacts on the night sky resulting from our AAS Committee for the Protection of Astronomy and the Space Environment press briefing at #AAS245.

https://skyandtelescope.org/astronomy-news/space-industry-adds-threats-to-astronomy-light-pollution-remains-a-big-problem/

[#]Astronomy #LightPollution #DarkSkies #Space #Satellites

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Written by Dr. John Barentine FRAS on 2025-01-26 at 18:04

"We quantified global artificial illuminance caused by #skyglow, finding that skyglow artificially doubled illuminance of new moon conditions—a critical phase for biological processes."

https://esajournals.onlinelibrary.wiley.com/doi/10.1002/fee.2832

[#]Animals #Ecology #ALAN #LightPollution #Darkness #Biology

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