Search found 1563 matches

by JohnD
Mon Apr 22, 2024 10:06 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Moon and Smoke Rings from Mt. Etna (2024 Apr 22)
Replies: 6
Views: 403

Re: APOD: Moon and Smoke Rings from Mt. Etna (2024 Apr 22)

That looks even more like the back drop for some SF movie!
"Tentacle Creatures of the Smokey Planet!!"
by JohnD
Mon Apr 08, 2024 10:00 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Changing Ion Tail of Comet... (2024 Apr 08)
Replies: 4
Views: 627

Re: APOD: The Changing Ion Tail of Comet... (2024 Apr 08)

What a clever set of pictures!

Surely they could be put together as an animated film, perhaps by using AI to produce interpolated images? Beyond my skills, I fear!

JOhn
by JohnD
Sat Mar 23, 2024 8:13 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Ares 3 Landing Site: The Martian... (2024 Mar 23)
Replies: 11
Views: 700

Re: APOD: Ares 3 Landing Site: The Martian... (2024 Mar 23)

Quote today's blurb, "the scifi novel The Martian by Andy Weir." AND one the the best SF films in years. With an excellent cast, not least Mat Damon, as the "Martian". As for " Dejah Thoris, princess of Helium, and Tars Tarkas, Jeddak of Thark" this film (and book!) wil...
by JohnD
Tue Feb 20, 2024 10:02 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: AM1054: Stars Form as Galaxies Collide (2024 Feb 20)
Replies: 24
Views: 2082

Re: APOD: AM1054: Stars Form as Galaxies Collide (2024 Feb 20)

Thank you, Ann!
You took my words, or rather thought, as you expressed it so much better and more knowledgably!
John
by JohnD
Mon Feb 19, 2024 3:06 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Looking Sideways from the Parker... (2024 Feb 19)
Replies: 12
Views: 1382

Re: APOD: Looking Sideways from the Parker... (2024 Feb 19)

Yes, thank you, Chris!

Then some of the secondary particles will be lighter (electrons?) and low energy, so more easily curved by weaker magnetic fields?
John
by JohnD
Mon Feb 19, 2024 11:33 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Looking Sideways from the Parker... (2024 Feb 19)
Replies: 12
Views: 1382

Re: APOD: Looking Sideways from the Parker... (2024 Feb 19)

Some further Qs. In front of the passing view of the sky are random (?) streaks. Are these particles in the Corona, that we see further out but in front of the starry sky beyond? Or are they radiation particles, directly affecting the camera? And why are so many such streaks curved? A charged partic...
by JohnD
Tue Feb 13, 2024 9:39 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A January Wolf Moon (2024 Feb 13)
Replies: 10
Views: 1237

Re: APOD: A January Wolf Moon (2024 Feb 13)

Just HOW is this a "Wolf" moon?
There are no wolves on the island where I live, and few in Europe, and anyway the animals couldn't give a F&^*&^ about it!

It's beautiful picture of a full moon! Why bring in all the false folkways?
JOhn
by JohnD
Fri Feb 02, 2024 2:10 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: SLIM Lands on the Moon (2024 Jan 30)
Replies: 10
Views: 13451

Re: APOD: SLIM Lands on the Moon (2024 Jan 30)

The blurb seems a little out of date! AS of yesterday, 29th Jan, Japan regained contact with SNIPER: https://edition.cnn.com/2024/01/29/asia/japan-moon-sniper-lander-resumes-intl-hnk-scn/index.html John It is back! See the New Scientist report https://www.newscientist.com/article/2414496-japans-sli...
by JohnD
Thu Feb 01, 2024 1:02 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Ghosts of Gamma Cas (2023 Oct 28)
Replies: 8
Views: 15783

Re: APOD: The Ghosts of Gamma Cas (2023 Oct 28)

"Cute"? clever or shrewd often in an underhanded manner? No. obviously straining for effect. No attractive or pretty especially in a childish, youthful, or delicate way. The first, perhaps, but these are millions of years old! Please don't use 'cute' about astronomy. In fact, PLEASE don't ...
by JohnD
Tue Jan 30, 2024 9:58 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: SLIM Lands on the Moon (2024 Jan 30)
Replies: 10
Views: 13451

Re: APOD: SLIM Lands on the Moon (2024 Jan 30)

The blurb seems a little out of date! AS of yesterday, 29th Jan, Japan regained contact with SNIPER:
https://edition.cnn.com/2024/01/29/asia ... index.html

John
by JohnD
Sun Jan 28, 2024 3:10 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Full Observatory Moon (2024 Jan 27)
Replies: 8
Views: 1144

Re: APOD: Full Observatory Moon (2024 Jan 27)

Ann He wasn't! Or at least he didn't at first. Kilroy and Mr.Chad, or Chad, had American and British origins, both before WW2, but became conflated during the war, as the US was recruited to the struggle. The graffito of the long nosed person peering over a wall/fence was used in the UK to complain ...
by JohnD
Sat Jan 27, 2024 12:56 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Full Observatory Moon (2024 Jan 27)
Replies: 8
Views: 1144

Re: APOD: Full Observatory Moon (2024 Jan 27)

Thank you, alter-ego!

That's no stupid 'Wolf Moon", that's the Chad-Moon!
John
by JohnD
Mon Jan 15, 2024 6:42 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Cluster IC 348 from Webb (2024 Jan 15)
Replies: 13
Views: 3036

Re: APOD: Star Cluster IC 348 from Webb (2024 Jan 15)

It's not April 1st, but how else to account for this sentence inserted into the blurb for this APoD? " Evidence for this includes the detection of an unidentified atmospheric chemical, likely a hydrocarbon, seen previously in the atmosphere of Saturn. " If you wish for confirmation of this...
by JohnD
Tue Dec 05, 2023 5:07 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Plane Crossing Crescent Moon (2023 Dec 04)
Replies: 18
Views: 11026

Re: APOD: Plane Crossing Crescent Moon (2023 Dec 04)

Awfully like the SpaceX logo! [] Not to mention being just in time for [] Too far fetched. :thumb_down: More like this https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRC5aOrphDcGCszC7sdRo3fl6sQDq7cG8AK2cQDcWfdCj_6G-4AYNb9C-G_JeTK951F5Mc&usqp=CAU :thumb_up: :saturn: Yes, but ... boring!
by JohnD
Mon Dec 04, 2023 5:09 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Plane Crossing Crescent Moon (2023 Dec 04)
Replies: 18
Views: 11026

Re: APOD: Plane Crossing Crescent Moon (2023 Dec 04)

Awfully like the SpaceX logo!
SpaceX logo.jpg

Not to mention being just in time for
X logo.jpg
MAS
by JohnD
Sun Nov 26, 2023 1:41 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Something has fallen off Perseverance!
Replies: 7
Views: 9423

Re: Something has fallen off Perseverance!

Another one! <iframe src="https://mars.nasa.gov/layout/embed/image/500raw/?i=NLF_0151_0680349565_301EBY_N0051812NCAM00417_04_0LLJ" width="500" height="500" scrolling="no" frameborder="0"></iframe> Frustratingly, NASA doesn't discuss the multitude of ...
by JohnD
Tue Nov 21, 2023 9:48 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Fleming's Triangular Wisp (2023 Nov 21)
Replies: 12
Views: 10968

Re: APOD: Fleming's Triangular Wisp (2023 Nov 21)

Nice pic! It raises for me the question, how/why are the 'veils' of nitrogen and oxygen so separated? This applies to aurorae too, when in Earth's atmosphere the gases are so intimately mixed, yet are seen as separate features. All are due to high energy radiation/particles striking the gas atoms. T...
by JohnD
Mon Nov 20, 2023 2:00 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Something has fallen off Perseverance!
Replies: 7
Views: 9423

Re: Something has fallen off Perseverance!

Just boosting this, as no one seems to know, and I'd like to!
by JohnD
Wed Nov 15, 2023 5:10 pm
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Something has fallen off Perseverance!
Replies: 7
Views: 9423

Something has fallen off Perseverance!

See: https://www.youtube.com/shorts/elnDAEKOZhM

An axle? In two parts?
Or is this a sample tube for later recovery?

John
by JohnD
Thu Nov 02, 2023 11:37 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Galaxy Cluster Abell 370 and Beyond (2023 Sep 12)
Replies: 28
Views: 14586

Re: APOD: Galaxy Cluster Abell 370 and Beyond (2023 Sep 12)

The main article in this weeks New Scientist is "In Search of Quantum Gravity". See: https://www.sciencedirect.com/science/article/abs/pii/S0262407923020122 if you don't have a subscription to NS. The author is a journalist, not a scientist! She describes the work of Kathryn Zurek, who pro...