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cosmos4u.bsky.social @cosmos4u.bsky.social · 4h

Some 'domeshots' from the new Bochum astrophysics planetarium show 'Our Exotic Universe' ... and if you want to know what's going on here: come and watch! Dates & tickets: planetarium-bochum.de/de_DE/progra...

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

Guests of the (2nd) premiere of the Bochum astroparticles planetarium show - most are from the RAPP: www.rapp-center.de

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

Gruppenbild mit den RAPP-Gästen vor dem Planetarium - die in wenigen Minuten die Show gucken.

cosmos4u.bsky.social @cosmos4u.bsky.social · 7h

The Type II SN 2025pht in NGC 1637 - A Red Supergiant with Carbon-rich Circumstellar Dust as the First JWST Detection of a Supernova Progenitor Star: iopscience.iop.org/article/10.3... -> Webb Telescope unveils doomed star hidden in dust: news.northwestern.edu/stories/2025...

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iopscience.iop.org

cosmos4u.bsky.social @cosmos4u.bsky.social · 7h

@boslough.bsky.social Hi Mark, I reckon the conclusion that "neither the asteroidal nor the cometary interpretation of the Tunguska event is consistent with" the "atmospheric optical anomalies" in arxiv.org/abs/2510.03239 is a fringe view ... can you point me to a good review about these effects?

The 1908 Tunguska event and the atmospheric optical anomalies

This paper is a continuation of a series of works, devoted to various aspects of the 1908 Tunguska event. In the late June - early July, 1908 there were various optical anomalies in the atmosphere. Ea...

arxiv.org

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ESA Operations @operations.esa.int · 1d

Happy launch anniversary to ESA's Hera mission! 🎂🥳

One year ago ESA's first planetary defence mission was stranded on Earth, its launcher grounded, as a hurricane closed in on its launch site. What a difference a year makes! www.esa.int/ESA_Multimed...

Hera’s first year in space

www.esa.int

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Col (Chuck TMF’s) @coldownsouth.bsky.social · 13h

FOX "NEWS"

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

High-energy astroparticle physics in a popular planetarium show? Only in Bochum, Germany: premieres today, public shows from 12 October: planetarium-bochum.de/de_DE/progra...

Ruhr-Universität Bochum @ruhr-uni-bochum.de · 11h

Premiere! So groß haben wir unsere Forschung noch nie präsentiert. Ab Oktober könnt ihr die Ergebnisse unserer Astrophysiker*innen im @planetariumbochum.bsky.social bestaunen. 🪐🌟

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Doug Mack @douglasmack.bsky.social · 16h

the most delightful version of logging on to see what news you've missed

Dr Ramsdell, whose phone had been on airplane mode when the Nobel committee tried to call him, told the BBC's Newshour Programme that his first response when his wife said, "You've won the Nobel prize" was: "I did not."

To which Ms O'Neill replied that she had 200 text messages that suggested he had.

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

“The Destruction of NASA’s Mission” | Whistleblowers Reveal OMB’s Unconstitutional Plot to Gut the Agency: www.commerce.senate.gov/services/fil... -> www.commerce.senate.gov/2025/9/new-d... -> bsky.app/profile/comm... and bsky.app/profile/sola...

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Shea (she/her) @solarshea.bsky.social · 1d

Shared with permission from Carl Stahle, Retired, Vice President of Goddard Retirees and Alumni Association, NASA Goddard Space
Flight Center

Link in the document text: www.commerce.senate.gov/services/fil...

(Original LinkedIn post: www.linkedin.com/posts/carl-s...)

@roguenasa.altgov.info

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

The Discovery of a Large Active Wind from the Milky Way's Central Black Hole: arxiv.org/abs/2509.10615 -> Missing wind from Milky Way’s giant black hole finally found: www.science.org/content/arti... - astronomers may have glimpsed a long-predicted wind of gas blowing out from Sagittarius A*.

The Discovery of a Large Active Wind from the Milky Way's Central Black Hole

Every large galaxy has a black hole in its center. The interaction between the black hole and their host profoundly shapes galactic evolution and the Universe as a whole. The key feature of this inter...

arxiv.org

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lindsey ✨ @lcgordon.bsky.social · 1d

how to win a nobel physics prize 🔭✨☄️

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

Your friedly neighbourhood radio ham (with a 20-meter dish :-) at your service ... I had asked them to look for Juno's carrier, and a few hours later: bingo!

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Steve Brown - astronomy and astrophotography @sjbastro.bsky.social · 1d

Captured something interesting a couple of days ago - colourful satellites. I've seen blue Starlinks before but not green and blue ones together. What's with the different colours? Apparently it's all to do with different coatings they have. More info in the ALT. #Astronomy #Space #Astrophotography

Two Starlink satellite trails, one green and one blue. They are passing through Gemini on 5 October 2025 at 04:35 UT. The bright stars above the green trail are Castor and Pollux. The bright object at the end of the blue trail is Jupiter. Taken with a Canon 600D and 50mm lens at 10s exp, 50mm fl, f/1.8, ISO-800.

I know that the blue ones are due to a coating on the newer 'Direct to Cell' satellites that is supposed to make them less visible in the night sky. Apparently the latest coatings have a green hue, meant to make them even less visible (I assume). Satellite mega constellations are the vermin of the sky but in some circumstances make for an interesting picture.

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

Yes, Bochum sees the carrier: bsky.app/profile/amsa...

AMSAT-DL @amsat-dl.org · 1d

JUNO at Jupiter is still alive!! 📡〰️🛰️Just received it's X-Band transmitter (carrier only) at 781 Million kilometer distance with the Bochum 20m antenna.

Reposted

AMSAT-DL @amsat-dl.org · 1d

JUNO at Jupiter is still alive!! 📡〰️🛰️Just received it's X-Band transmitter (carrier only) at 781 Million kilometer distance with the Bochum 20m antenna.

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

Einstein got it "for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect", Peebles "for theoretical discoveries in physical cosmology" with *no* specific work mentioned. Can't find the specific rule which this violated now but saw one in 2019.

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Simeon Schmauß @stim3on.bsky.social · 2d

I guess some proof can't hurt:
With proper processing of that image and don't just showing the raw version which is super noisy, you can see some familiar stars like Arcturus and the the big dipper.
And that streak is turns out to be exactly where Phobos was in the sky...

Processed version of the Perseverance Navcam image from Sol 1643 with all the noise removed. It shows a much larger area of sky than the infamous raw image because it was stitched from 16 individual tiles which are sent separately.
It shows a dark sky with a couple of stars sprinkled around. The brightest is Arcturus at the top center, and the handle of the big dipper can be seen below. On the left is a bright streak with a halo, this is the moon Phobos.

Sreenshot from Stellarium showing the same Starfield with a red box indicating the FOV of Nacam (not considering the Fisheye nature of that lens).
The stars match up perfectly with Navcam, especially Phobos can be clearly identified as such.
Comet 3I/Atlas is marked in red and should be in the middle of the frame, but is so much darker than any stars in the actual Navcam image that it will be impossible to detect there.

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

An amateur astrophotographer from Florida - I've tried in vain to find out his name.

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

Aren't such lifetime achievement awards explicitly banned in the Nobel rules which demand a particular achievement to be honored? (The prize for Jim Peebles seems to have violated that, though.)

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

Great analysis at the beginning of www.youtube.com/watch?v=QKls... - L. is beyond clueless ...

Interstellar Comet 3I/ATLAS Captured by Mars Rover!

YouTube video by Astronomy Live

www.youtube.com

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cosmos4u.bsky.social @cosmos4u.bsky.social · 2d

@radiotelescoop.bsky.social Did the Dwingeloo dish ever get downlink from Juno at Jupiter? The absence or presence of a carrier might answer the question - www.space.com/space-explor... - whether Juno has been killed or is still working.

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cosmos4u.bsky.social @cosmos4u.bsky.social · 2d

FWIW L. just blundered big-time again ... mistaking Phobos for comet 3I in Perseverance NavCam images: www.youtube.com/watch?v=QKls... demonstrates it. (Just a Floria amateur astronomer on YouTube but doing great astronomy outreach here.)

Interstellar Comet 3I/ATLAS Captured by Mars Rover!

YouTube video by Astronomy Live

www.youtube.com

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cosmos4u.bsky.social @cosmos4u.bsky.social · 2d

@amsat-dl.org Did the Bochum dish ever get downlink from Juno at Jupiter? The absence or presence of a carrier might answer the question - www.space.com/space-explor... - whether Juno has been killed or is still working.

NASA's Juno probe may have come to an end but no confirmation

The U.S. government shut down the same day Juno's last mission extension expired.

www.space.com

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