Where do you see a "tail pointing away from the Sun" in this image? I only see a small coma with a central condensation which appears somewhat elongated because this is the instrument's point spread function, shown in the lower right.

Es geschah vor 65 Jahren: Mysterium um die Luft-Aufnahmen des letzten „Finsterniskometen“ Wie dieses Jahr, so war auch 65 Jahre zuvor Anfang November eine kurze Totale Sonnenfinsternis über Ostafrika zu sehen – aber viel berühmter wurde der Komet 1948 V1, der während der Totalität…

Some years ago I did an intense search of the literature and also asked everyone who might know something: skyweek.wordpress.com/2013/12/26/e... is the outcome of this investigation, with fg-kometen.vdsastro.de/Publ/ECC15/D... the slides of a talk I gave about it at a comet conference in 2015.

Grand Canyon landslide-dam and paleolake triggered by the Meteor Crater impact at 56 ka: pubs.geoscienceworld.org/gsa/geology/... -> An Asteroid Impact May Have Led to Flooding near the Grand Canyon: eos.org/articles/an-...

Diese Woche vor 40 Jahren fand mit D1 die erste von zwei Spacelab-Missionen unter deutscher Regie statt: www.esa.int/About_Us/50_... - an Bord waren mit Reinhard Furrer (Kreuz links) und Ernst Messerschmid (rechts) die deutschen Astronauten Nr. 3 und 4 und mit Wubbo Ockels der erste Niederländer.

Low-hanging fruit ... saw this pun in multiple places. :-)

#NASA's #Mars #Perseverance rover

Sol 1670 Oct. 31, 2025: Left Navigation Camera (Navcam)

mars.nasa.gov/mars2020/mul...

NASA/JPL-Caltech/j. Roger

For predicting the magnitude this month I'm considering starting with an apparent 10.0 for Oct. 31 - but what 'n' to assume? (And will 3I finally show good tails as A6, R2 and K1 did?)

40,000,013 users on Bluesky 80.00003% of 50,000,000 user goal (currently estimated in ~522.3 days)

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Lowell Observatory A cosmic visitor returns. ☄️ This morning, the Lowell Discovery Telescope captured new images of interstellar comet 3I/ATLAS, now visible again after emerging from behind the Sun last week. It’s one....

3I/ATLAS has already been recovered at Lowell Observatory today! The picture www.facebook.com/lowellobserv... has a surprisingly high contrast. And the magnitude is about 10.5 mag.: scicomm.xyz/@qicheng@com...

Update on the utterly normal activity of comet 3I/ATLAS: the lack of shenanigans continues - this is just a comet doing its comet thing.

Shenzhou-21 successfully docked with Tiangong at 1922 UTC, just over 3.5 hours after launch. www.cmse.gov.cn/xwzx/202511/...

Consequences of Undecidability in Physics on the Theory of Everything General relativity treats spacetime as dynamical and exhibits its breakdown at singularities. This failure is interpreted as evidence that quantum gravity is not a theory formulated within spacetime; ...

Consequences of Undecidability in Physics on the Theory of Everything: arxiv.org/abs/2507.22950 -> UBCO study debunks the idea that the universe is a computer simulation: news.ok.ubc.ca/2025/10/30/u... - new study uses logic and physics to definitively answer one of science's biggest questions.

Image of a time-dependent rotating regular black hole In this study, we develop a modeling framework based on spatio-temporal generalized random fields to simulate the time-evolving accretion flows and their associated imaging signatures around rotating ...

Image of a time-dependent rotating regular black hole: arxiv.org/abs/2507.21628 -> Watching a black hole flicker in time: www.eurekalert.org/news-release...

2032 and 2036 risk enhancement from NEOs in the Taurid stream: Is there a significant coherent component to impact risk? Impact risk is normally quantified by summing the product of the probability of an event and some measure of its consequences over the set of all poss…

2032 and 2036 risk enhancement from NEOs in the Taurid stream: Is there a significant coherent component to impact risk? www.sciencedirect.com/science/arti... -> UNM research suggests Halloween fireballs could signal increased risk of cosmic impact or airburst: news.unm.edu/news/unm-res...

Blue Origin has conducted what appeared to be a successful full-duration hot-fire test of it's New Glenn rocket at 9:59pm EDT (01:59 UTC), ahead of it's second flight as soon as November!

Coverage was on our 24/7 livestream, Space Coast Live: nsf.live/spacecoast

Shocking revelation by leading space scientist: 3I/ATLAS at perihelion is following "exactly" the trajectory a comet would take! Now would the media - looking at you - please never again take seriously a certain 'Harvard astronomer'. Thank you.

Meet four of the seven passengers of Shenzhou-21 to leave at 15:44 UTC today for the Chinese space station!

SpaceX and Blue Origin both submitted plans to get astronauts back to the moon faster, NASA says SpaceX said it has pitched NASA a "simplified mission" to put astronauts back on the moon following criticisms over delays by Sean Duffy, the space agency's acting administrator.

SpaceX, Blue Origin submitted plans to get US astronauts back to the Moon faster, NASA says... (The proposals followed DOT Sec. Duffy's criticism of SpaceX for delays in Artemis III program.) www.cnbc.com/2025/10/30/s...

Proud to present the new version of the SUNSCAN mobile app: v1.4.3. 🔭🚀 Available on iOS and Android. Lots of new features coming 😁 And for those who don't know about #SUNSCAN, come discover this smart solar telescope designed by the #STAROS association as an open source project here: www.sunscan.net

https://punch.space.swri.edu/punch_science_getdata.php

We just rolled out v0h of the PUNCH data pipeline. Most of Aug and Sep are now up. By Sunday we should have reprocessed it all. The L2 data include 4-min-cadence images of 3I/Atlas for those who wish to verify it is not an alien spaceship doing maneuvers. 🧪🚀🛰️🔭☀️

punch.space.swri.edu/punch_scienc...

The asteroid is now known as 2025 UC11. This animation shows where the observations were made. #astronomy

As expected TIANWEN-2 appeared on X-band today, likely ahead or possibly just after it's first major deep space burn.
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So sah ATLAS tatsächlich im Perihel aus: bsky.app/profile/kwal... - erstaunlich dass man aus Bildern eines denkbar ungeeigneten Instruments so was heraus holen kann.

I wanted to offer some thoughts on the Gates climate memo that has been circulating this week. While I can't directly speak for others, I can say that my own response is one of dismay & deep frustration (and that this view is shared by many climate/Earth scientists). [1/n]

ICYMI ... ATLAS yesterday right at perihelion, caught by PUNCH: bsky.app/profile/kwal... - its rapid rise in brightness (arxiv.org/abs/2510.25035) sure helped and will help Juice, I reckon.

Interstellar comet 3I Atlas from all clear filter data from PUNCH's WFI3 satellite on October 29th. This is the combination of 134 separate images. It's again visible in single frames (moving coming next). Probably visual magnitude ~9.5ish.

Before the object was ID'd the orbit animation bsky.app/profile/tony... was published based on early orbital elements - dunno how good it reflects the current knowledge.

From season 3 episode 6 of Mr Show - first aired on 31 October 1997.

Any chance of putting everything in a single - then pretty densely packed - October plot. Caution, Zhang & Battams plot the brightness at a constant 1 au distance from the observer. (But this against time, not log(r) - wonder what the light curve would look like if plotted that traditional way).

How interstellar comet 3I/ATLAS was observed by several coronagraphs on satellites through October: see scicomm.xyz/@cosmos4u/11... for sources and analysis!