Starship Asterisk*

So what is supernova plural form?? Is it supernovas or supernovae?? Chris will tell you it is supernovas. He has convinced me, too. :wink: I would say that in English, being a descriptive, not prescriptive language, the plural form is determined by usage. And both forms here are common and widely u...

So what is supernova plural form?? Is it supernovas or supernovae??

Let alone, all the people . :roll: I don't think all the water in all the humans would be that much. If approximately humans are made of 30 liters of water, It means around 240,000,000,000 liters, which is just 240 million cubic meters. If I have done the calculations correctly, that means all of t...

Can someone clarify why the ball representing "liquid fresh water" is so much larger than the one representing "all fresh-water lakes and rivers"? I thought at first that the difference must be held up in Arctic and Antarctic ice, but it's telling us "liquid fresh water&quo...

This APOD is good wallpaper material for smartphones
I recommend trying it. It is awesome

With total respect to Gabriela Mistral, her namesake nebula https://apod.cidehom.com/pix/2018/180406.jpg has a much more rounded nose than her https://www.nndb.com/people/027/000113685/gabriela-mistral.jpg and to me it looks a lot more like the Alfred Hitchcock nebula https://media.mutualart.com/Im...

That's a magnificent portrait of a ferocious storm and its torrent of lightning bolts. ⚡️⚡️⚡️⚡️⚡️ That said, and this APOD being considered an image more suitable for an APOD than an EPOD , I have to say that star trail pictures drive me slightly crazy. That is because I think I should be able to i...

You guessed that maybe I don't want to use the tools you used to "unscramble" star trail images. Unfortunately, you are correct. I want astronomy to be fun, and doing the kind of things you describe doesn't seem like fun to me. 🙁 Ann Okay, then how about this? Go back to the original with...

"The stars, though, will continue to circle the poll for as long as the Earth spins" I am sorry, but is that supposed to be poll?? Shouldn't it be pole instead?? Yes, I think so, and I've corrected it here and on FB and dropped a note to the APOD editor. Thank you :D I was just wondering ...

That's a magnificent portrait of a ferocious storm and its torrent of lightning bolts. ⚡️⚡️⚡️⚡️⚡️ That said, and this APOD being considered an image more suitable for an APOD than an EPOD , I have to say that star trail pictures drive me slightly crazy. That is because I think I should be able to i...

"The stars, though, will continue to circle the poll for as long as the Earth spins"
I am sorry, but is that supposed to be poll?? Shouldn't it be pole instead??

Chris Peterson wrote: ↑Sun Sep 04, 2022 2:17 pm

Rauf wrote: ↑Sun Sep 04, 2022 9:04 am "Every step caused the sand to light up blue."
What does this mean exactly??

When bioluminescent microorganisms are present in the water, walking on wet sand at the water's edge can leave glowing footprints behind.

I see, thanks for the clarification!!

"Every step caused the sand to light up blue."
What does this mean exactly??

An Amazing picture, but isn't Alnitak the leftmost star in the Orion's belt as seen from northern hemisphere?
Even if you consider the right shape of Orion Alnitak is to the left of the constellation..

Ann wrote: ↑Fri Aug 26, 2022 3:22 pm I have annotated the image. I had some trouble uploading it, and it became very small.


APOD 26 August 2022 annotated.png


Ann

Thanks for the annotations Ann! Recognizing southern constellations is so difficult for me

Milky Way looks funny here

Nice going, China. Speaking of orbiting the Moon, I read on a news site a few days ago that sometime this week or next there is going to be a rocket by NASA or ESA called Artemis 1 launched to the Moon. The first rocket that can carry astronauts to the Moon since Apollo 17, although Artemis 1 will ...

Hi everyone, Forgive me but I just wanted you to know of the passing of my kitty Scrappy. She was 17 and she spent uncountable hours stargazing with me and snuggling with me as I read astronomy texts and APOD😺 She was my family and my best friend and I will miss her. I just wanted to share this wit...

How to calculate when these transits happen in your location? Is there a website or a platform for that?? I am familiar with Heavens-above, but unfortunately it doesn't seem to tell me when a certain satellite like Tiangong will cross the moon or the sun. https://transit-finder.com/ Is very useful ...

How to calculate when these transits happen in your location? Is there a website or a platform for that??
I am familiar with Heavens-above, but unfortunately it doesn't seem to tell me when a certain satellite like Tiangong will cross the moon or the sun.

Gorgeous photo! I am curious about the light in the tower windows - Is that a normal thing they do or was it just for the picture, and is it electric light or portable lanterns? I'm also very curious about how, when and why the tower was built on that tiny island! The tower on the island is a priva...

Hello
Are you not updating this index?? It seems very useful..

Such beauty. I envy the photographer
Does anyone know what that yellow light is? It is shining in the sea at the left of the picture, Is it a reflection??

The solution(s) to the climate emergency, while perhaps not simple, will not consist of technological fixes but in making social and political changes leading to a sustainable green economy, and away from the short-term-profit-driven extractive economy that has led to the current crisis. If we coul...

Aries wrote: ↑Fri Aug 19, 2022 3:04 pm Wouldn't Jupiter have crossed paths during the conjunction?

No planet can be seen. I wonder if they were digitally removed? I don't know though.