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Reposted

NASASpaceflight.com @nasaspaceflight.com · 2h

Launch highlights from NSF's multitude of live and remote cameras covering Flight 11 of Starship.

➡️ www.youtube.com/watch?v=U4_-...

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Reposted

Daniel Bellingradt @dbellingradt.bsky.social · Sep 21

Auch das ist eine Jahresangabe in einem Impressum: "Gedruckt in diesem Jahr, da alles verkehrt war."

A slightly unusual printer's imprint: "Printed in the year when everything was wrong".

#bookhistory #skystorians

Titelblatt der Flugschrift"Der Kluge Meyer, Wie er sein Gsind aufweckt, und zu der Arbeit antreibt : Ich bin genannt der kluge Mever, In die Stadt trag ich Haasen, Hüner und Ever. Samt Kurtzweiligen Klagsprüchen eines armen ausgehauseten Beltzstössels" (VD18 90882237).

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cosmos4u.bsky.social @cosmos4u.bsky.social · 2h

Still trying to figure out what this means ... apparently "croak" is the generic term for the sound all frogs (and some corvids) make while "ribbit" is a call associated quite specifically with Pseudacris regilla, the Pacific tree frog - so the Portland frogs are cool then while all others are not?

Isabel Santos @isabelsantos.bsky.social · 2d

Meanwhile in Portland…Frog becomes symbol of resistance. Teasing seems far more effective than fighting. Loving all the frogs and creative costumes!
Go Portland!

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cosmos4u.bsky.social @cosmos4u.bsky.social · 3h

The return of the #Starship close-up, grabbed from the videos in x.com/SpaceX/statu...

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cosmos4u.bsky.social @cosmos4u.bsky.social · 6h

Just saw the paper "Constraining Earth’s orbital capacity via operational feasibility" - www.sciencedirect.com/science/arti... - which probably gives an answer but how no time to look into the math in detail. Says that the 400–600 km and 700–800 km LEO range is getting dangerously crowded already.

Constraining Earth’s orbital capacity via operational feasibility

Earth’s orbital environment has grown increasingly congested as the cost of satellite deployment has fallen dramatically in the twenty-first century. …

www.sciencedirect.com

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cosmos4u.bsky.social @cosmos4u.bsky.social · 8h

Deep imaging of the galaxy Malin 2 shows new faint structures and a candidate satellite dwarf galaxy: www.aanda.org/articles/aa/... -> IAC research reveals hidden structures and a turbulent past in one of the largest spiral galaxies in the Universe: www.iac.es/en/outreach/...

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cosmos4u.bsky.social @cosmos4u.bsky.social · 9h

Conclusion of a thread explaining why Juice's observations of 3I planned for November won't be on the ground for months. (Well, perhaps the Shutdown has ended by then and we've learned whether more U.S. Mars s/c than Perseverance saw something this month.)

ESA Space Science @science.esa.int · 17h

It is also far from Earth, on the other side of the Sun. For all these reasons, we don’t expect to receive Juice’s observations of 3I/ATLAS until February 2026. It is a long wait indeed, but it's a big space out there. 8/8

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cosmos4u.bsky.social @cosmos4u.bsky.social · 9h

At least weather- AND comet-wise the world was a better place exactly one year ago today ... here's Tsuchinshan-ATLAS over Bochum, Germany, that evening. An easy urban naked-eye comet - they don't make these anymore. Or will Lemmon explode in glory soon while the clouds part? Yeah, right ... ;-)

Planetarium Bochum @planetariumbochum.bsky.social · 10h

Heute vor genau einem Jahr war der beste Abend, um in Bochum den Kometen Tsuchinshan-ATLAS zu bestaunen, der leicht mit bloßem Auge zu sehen war: www.facebook.com/dan.fischer.... = viele Bilder von jenem Abend, bonnstern.wordpress.com/2024/10/30/z... = ein Best-Of der gesamten Sichtbarkeit.

Reposted

Stand Up for Science! @standupforscience.bsky.social · 10h

📣Launching SCIENCE FIGHT CLUB ✊

It’s time to take back our science.

How? We take back Congress to protect science and democracy in 2026.

We invite you to join us in building power as part of our monthly grassroots donor program.

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Graphic titled “science fight club” in bold red blocks. Text states there are two rules - 1. Only a congress without accomplices stops trumps. 2. Once we achieve that, we disband. A small box asks, “are you in?” Website at bottom: standupforscience.net/join-science-fight-club. Tone is urgent, activist, pro-science.

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cosmos4u.bsky.social @cosmos4u.bsky.social · 10h

I'm confused: in the announcement it says it begins on 17 Oct at 20:00 JST which would be 13:00 CEST (or 11:00 UTC) - but on www.youtube.com/live/Fxe3owb... the start time is currently displayed as 2:00 CEST on 18 Oct which would be 9:00 (a.m.) JST on that date. Just a glitch with YouTube's stream?

Nerd Nite Tokyo #72: The Camera Eye

Every month, we gather some smart speakers and a curious crowd, add a bar, and create something unique. This month, we’re in Sugamo to talk about computer vision and narrating a Moon landing! As alway...

www.youtube.com

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cosmos4u.bsky.social @cosmos4u.bsky.social · 10h

Image reconstruction with the JWST Interferometer / AMIGO - a Data-Driven Calibration of the JWST Interferometer: arxiv.org/abs/2510.10924 / arxiv.org/abs/2510.09806 -> How we sharpened the James Webb telescope’s vision: theconversation.com/how-we-sharp... -> bsky.app/profile/benj...

Image reconstruction with the JWST Interferometer

Flying on board the James Webb Space Telescope (JWST) above Earth's turbulent atmosphere, the Aperture Masking Interferometer (AMI) on the NIRISS instrument is the highest-resolution infrared interfer...

arxiv.org

Reposted

Jonathan McDowell @planet4589.bsky.social · 23h

SpaceX webcast data consistent with a Starship orbit of -1 x 192 km, with uncertainty of about plus or minus 3 km in the perigee value. The Raptor restart raised perigee to about +52 km (but the vehicle was by then already well past apogee, at 145 km on the way down.)

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cosmos4u.bsky.social @cosmos4u.bsky.social · 23h

Global Tipping Points Report 2025: global-tipping-points.org/resources-gtp/ (summary and full report) -> Bleaching, Melting, Slowing - New report tracks growing risks of Earth system tipping points: www.pik-potsdam.de/en/news/late... -> edition.cnn.com/2025/10/13/c...

Resources - Global Tipping Points

Tipping Points Briefing Papers Download the Tipping Points Policy Brief here. Download A positive tipping cascade in power, transport and heating Download the study here. Download something here Plane...

global-tipping-points.org

cosmos4u.bsky.social @cosmos4u.bsky.social · 1d

The Gulf of ...? ;-)

cosmos4u.bsky.social @cosmos4u.bsky.social · 1d

How do you get the launch time down to a second? When I'm watching several launch streams simultaneously the rocket lifts off at a different time in each one - this time for example SpaceX on X and NSF on YouTube via my cable TV were 30 seconds apart ...

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cosmos4u.bsky.social @cosmos4u.bsky.social · 1d

And the ditching of the #Starship after test #11, seen from an onboard camera and a buoy which was close but didn't look in the best direction. Anyway, everything seems to have gone just as planned this time, including aggressive reentry experiments with tiles removed and hard maneuvers.

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cosmos4u.bsky.social @cosmos4u.bsky.social · 1d

Some screencaps of the #Starship reentry during test #11.

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cosmos4u.bsky.social @cosmos4u.bsky.social · 1d

First steps of the 11th #Starship test flight going to plan.

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cosmos4u.bsky.social @cosmos4u.bsky.social · 1d

The webcast of the 11th #Starship flight test has begun: x.com/i/broadcasts... - t zero is 23:23 UTC.

SpaceX

Starship's Eleventh Flight Test

x.com

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Javi Ibarrondo @jibarrondo.bsky.social · 1d

Total solar eclipse triggers dawn behavior in birds: Insights from acoustic recordings and community science | Science www.science.org/doi/10.1126/... 🧪

Total solar eclipse triggers dawn behavior in birds: Insights from acoustic recordings and community science

On 8 April 2024, a total solar eclipse disrupted light-dark cycles for North American birds during the lead-up to spring reproduction. Compiling more than 10,000 community observations and artificial ...

www.science.org

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Reposted

Marco Langbroek @marcolangbroek.bsky.social · 5d

Navigational Warnings for #Starship FT-11

Navigational Warnings NAVAREA IV 1082/25 and HYDROPAC 2583/25

Areas from Navigational Warnings NAVAREA IV 1082/25 and HYDROPAC 2583/25 plotted on a map with a fitted trajectory

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Karen Mulreid @beatingblog.bsky.social · 1d

No no. No, we won't be doing that. We won't be brushing the last two years under the carpet just because there is a current ceasefire. This is appalling, Israel should not be allowed to participate until Palestine is free and Netanyahu is behind bars for war crimes, where he belongs.

RTÉ News @news.rte.ie · 1d

Eurovision Song Contest organisers will no longer meet online in November to vote on Israel's participation in the competition, following Middle East "developments", the European Broadcasting Union said

Eurovision organisers push back Israel decision

Eurovision Song Contest organisers will no longer meet online in November to vote on Israel's participation in the competition, following Middle East "developments", the European Broadcasting Union sa...

www.rte.ie

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E. Bottlaender @bottlaeric.bsky.social · 1d

Très intéressant, et loin des poncifs sur les nantis qui font des vols suborbitaux.
Quand tu passes 20 ans à bâtir toute la sécurité/fiabilité chez SpaceX et que ton premier vol "spatial" est sur... New Shepard.

arstechnica.com/space/2025/1...

Hans Koenigsmann, who investigated all of SpaceX’s rocket failures, is going to space

“I’ve always been interested to experience Max Q from the inside.”…

arstechnica.com

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Reposted

Daniel Bellingradt @dbellingradt.bsky.social · 1d

This ad about the importance of using the best lightning solutions for your workspace is brought to you from 1530 Wittenberg. The desk user M.L. recommends the illuminating dove to help you stay on task. #skystorians #academicchatter

Martin Luther sits at a writing desk, writing, and a heavenly sent dove is illuminating the room. This is a hand coloured part of a bible print from 1530. You may access a digital copy here: https://daten.digitale-sammlungen.de/~db/0011/bsb00113027/images/index.html

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cosmos4u.bsky.social @cosmos4u.bsky.social · 1d

[Earth] Core [magnetic] field changes from eleven years of Swarm satellite observations: www.sciencedirect.com/science/arti... -> Swarm reveals growing weak spot in Earth’s magnetic field: www.esa.int/Applications...

Core field changes from eleven years of Swarm satellite observations

The Swarm satellite trio has provided global vector magnetic field measurements, with high precision and absolute accuracy, for the past eleven years.…

www.sciencedirect.com

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