Starship Asterisk*

Thank you to Judy and "the Geek" for this work

What has happened to the DISCUSS(T) page?

I feel some of you may have missed the 2:54 minute dialogue animation at the Gale Crater link, https://www.jpl.nasa.gov/videos/a-guide-to-gale-crater. Worth watching as it seems to address some of the issues being discussed.

Thank you, again, Chris.
I was using Doppler, not cosmological. My limited sonar experience and love of trains had me on the wrong track.
Bill

APOD robot link hubblesite.org/contents/news-releases/2022/news-2022-003 lists redshift, I think, incorrectly. If I am correct, does anybody have a contact at NASA who might correct this error? “The find is a huge leap further back in time from the previous single-star record holder; detected by Hu...

APOD robot link hubblesite.org/contents/news-releases/2022/news-2022-003 lists redshift, I think, incorrectly. If I am correct, does anybody have a contact at NASA who might correct this error? “The find is a huge leap further back in time from the previous single-star record holder; detected by Hub...

If a large star could become a neutron star, then a neutron star could become a black hole, what could a black hole become? Say something 3D is changed into a 2D object, what would be its 1D counterpart? I guess I might as well ask what a 4D cat ball looks like. Quasars are like that; let alone a m...

ok, no blanket, just a sieve. Still it's miles tighter than thick radiating things like Moon surface that is in a kind of thermal equlibrium with space radiation, if we take a weighted mean of the 0.5° diameter disk of Sun (6000 K) and the rest of the sky (3 K). We first hear how cold it is on Moon...

Beautiful picture today. The tulip, to me, looks like a tulip with astounding color. Then I see a bunny, facing the right edge, and below that a donkey. I choose donkey rather than horse due to the length of the eyes to nose being shorter than on a horse, IMO.

Bill Bixby

orin stepanek wrote: ↑Tue Jul 13, 2021 11:57 am I was trying to get the moon to rotate all the way around; I could not! Twas only what Cassini saw! But all in all; it was an interesting read with the videos and all!

Use the mouse left click button to drag the image, causing it to rotate.

In today's APOD of sunspots, you state " Found in solar active regions, sunspots look dark only because they are slightly cooler" I'm sorry, but it just looks like hole to me. Am I mistaken? I think it is something visible in a place where the spot would not be expected. Therefore an unde...

I would like to know the reason today's APOD is using the term CSS rather than TSS or TSS3? Neither would be confused with ISS. Just curious.

Hello every one, The title was a mistake that comes from my bad English when I sent image to APOD editors. Mr Nemiroff asked me to check texts but I did not told him to correct title and just said: “All is Ok, but I am not sure all satellites are starlink, may some other passes. Not bad idea if wri...

I watched the live NASA broadcast of Perseverance landing on Mars. The results were outstanding. The terror and excitement shown in the control room by all in attendance was real to me but delayed by whatever transition time to convert the signals into broadcast form, transmitted and received, and t...

https://apod.nasa.gov/apod/calendar/S_210219.jpg Mars Perseverance Sol 0 Explanation: After a 203 day interplanetary voyage, and seven minutes of terror, Perseverance has landed on Mars . Confirmation of the successful landing at Jezero crater was announced from mission control at NASA’s Jet Prop...

Two days later I feel my initial reaction ca be posted. The picture is wonderful but my mind is unsure if I am seeing cleavage or the back of a plumber bent over.

Beautiful photo! One of the best I've seen in the fifteen years (or so) I've been following this site. What might the person with the flashlight be doing? I grew up on a farm in Missouri USA with no running water, so figured he might have had too much water or other liquids to drink before retiring...

orin stepanek wrote: ↑Mon Nov 09, 2020 12:29 pm Nice Aurora! I would never stand on that peak!

Human lightning rod. Add a kite and a key for a simple experiment...

First, Ann thanks for clarifying things. Second, One can always learn from mistakes. By searching Seyfert galaxies, I learned stuff I didn't know but I'm still not gaining on Chris Peterson. We likely will not see anyone cross the finish line. Rather than a dash, this is a relay race. The first to ...

Nice color contrast between the Moon and Mars. The surface brightness of Mars seems to be every bit as high as the surface brightness of the Moon, even though Mars is about one and a half times as far away from the Sun as the Moon is. The Moon is a dark body. I know I've read that the Moon is as da...

Otto Posterman's third waterspouts link, https://www.youtube.com/watch?v=hN7ug1zoWWE which is the third link entitled waterspouts, coming just after the word Some... I don’t recall seeing or clicking on that in the past. From the calm line at the beginning of “it ain’t going to hurt us” to the utter...

gioyhofer@libero.it wrote: ↑Thu May 07, 2020 8:49 pm https://www.giorgiahoferphotography.com ... m-k8tre1pj

I really like that.

There's still active research into non-military supersonic aircraft. I've seen a few papers or articles about recent developments with increasing efficiency and largely eliminating shock waves. Thanks; Chris! I wouldn't be able to reply to supersonic travel! Thank you Chris from me, too. I would li...

Very nice; wish Venus wasn't so bright in the photo; but still very nice! 8-) The SST really is icing on the cake heehaw! :D TrafficTaurusLionelMajzik_1067.jpg Not sure how SST is being used in this reference. But it brings to mind the Super Sonic Transport,like the Concord. But the ISS is faster a...

Neufer has placed a comment on yesterday's APOD regarding shrimp which goes well with today's link to extreme shrimp.