[SunkenCiv]

[Credit: E. Hubble, NASA, ESA, R. Gendler, Z. Levay and the Hubble Heritage Team]

[Bean Counter]

Pretty amazing, and even though that slide is almost a century old, it really gives you a good idea how much these galaxies change over the years.

The distances involved are mind boggling.....

[ixtl]

Interesting photos as usual. It was the large picture of the Andromeda Galaxy that really opened my eyes to just how vast our universe is.

[Prospero]

I really appreciate the head's up on the APOD's. Without these being posted here on FreeRepublic I would probably miss out, things being as busy as they are. Thanks.

Hadn't occurred to me to think of "cepheids" as a keyword. LOL. That's the kind of sophisticated, erudite people we are here on FR.