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Re: Have you seen this image before? (APOD of 2016 Sep 11)

Posted: Sun Sep 11, 2016 5:19 pm
by charlieo3
I have heard the statistics before, but I do not recall previously having seen this image or any other graphic depicting it visually. Cool. Having seen it, the image certainly creates a hard-to-forget imprint on the brain. imho

Re: Have you seen this image before? (APOD of 2016 Sep 11)

Posted: Sun Sep 11, 2016 8:02 pm
by tcarroll@keuka.edu
It means more now that I am aware of there being so much water and ice in and beyond the Solar System. It might be feasible that, eons ago, a collision between Earth and a large "icy" body could have resulted in there being so much surface water. -- Tom Carroll/Physics/Keuka College (NY)

Re: Have you seen this image before? (APOD of 2016 Sep 11)

Posted: Sun Sep 11, 2016 10:25 pm
by Salt extracted?
I wonder if the representation considers the sea's salt or is it just water? :)
Would it be tinnier, then?

Re: Have you seen this image before? (APOD of 2016 Sep 11)

Posted: Sun Sep 11, 2016 11:09 pm
by Chris Peterson
Salt extracted? wrote:I wonder if the representation considers the sea's salt or is it just water? :)
When you add salt to water, the volume actually goes down a bit. But either way, you're not going to see a visual difference in an image like this.

Re: Have you seen this image before? (APOD of 2016 Sep 11)

Posted: Mon Sep 12, 2016 12:18 am
by wbd
I voted 'No' but maybe I have seen it before and simply forgotten, given that I've been a regular APOD visitor since the late '90's.

Re: Have you seen this image before? (APOD of 2016 Sep 11)

Posted: Mon Sep 12, 2016 12:46 am
by Sposter2
Not only have I seen it before on APOD, I copied it to my NASA photos folder and use it as a background slideshow on my desktop. It is a wonderful image! Thank you!

Re: Have you seen this image before? (APOD of 2016 Sep 11)

Posted: Mon Sep 12, 2016 4:39 am
by Another Guest
To my eye the ball should appear much smaller. It appears to span half the width of the US, isn't that more than 1400 km?

Re: Have you seen this image before? (APOD of 2016 Sep 11)

Posted: Sat Sep 24, 2016 1:51 pm
by pablo valenzuela
sigo diariamente las imàgenes de Apod desde sus inicios, so... :D :D