Starship Asterisk*

Does the "slab" on Pan have fewer craters than the main body of the moon?

I know that a lot of Mars atmosphere drifted off into space, and some chemically combined on the surface. How big (how much gravity) does a planet have to be (have) to retain an reasonably (capable of sustaining life) mixed atmosphere? Earth's size works well for us, but is there a lower limit? Obvi...

Would it be more precise to say that the nuclear reactions in the various stars determine their temperatures and thus their individual colors? And yes, I'm far out of my area of expertise in asking this!

Thanks, and have a very merry christmas all.

I know there are dimensions of several features, but can a scale or resolution be provided? I'm interested in the size of the smallest objects visible. Thanks.

Like most of us, I've seen that photo before, but never with the colors so vivid. thanks for digging this out of the archives. It is appreciated.

It's interesting that many of the larger rocks are sticking out of the ground - vertically. That position is unusual in my experience looking at most disturbed and undisturbed sites on earth. I would expect the high winds (or marsquakes - if Mars has quakes) on Mars to cause the rocks to fall to a l...

Sixty years later.....People are living at that altitude,
We konw of thousands of other worlds,
We're activly searching for other civilizations,
and planning is under way for living on other worlds.

All in my lifetime --- I was 3 at the time of the Bumper launch!!

My understanding is that Jupiter forces many objects to be diverted inwards, towards Mars, Earth, Venus and Mercury. Since Pluto is not affected by Jupiters gravity forcing objects towards Pluto, would the rate of cratering on Pluto be significantly less than that observed on the inner (rocky) plane...

Interesting that the rings are not quite in the plane of the camera. On the right side of the photos the rings show up as two "white" lines - where the the full arc of the rings is visible, whereas on the left, the planet obscures the rings behind the planetallowing only the near half of t...

Wow.....both for the great "illustration" of the changing seasons and for the time involved in developing this image.
Awesome!

This may be of interest to some. Note that this is qouted from a different era. From "The Book of Woodcraft and Indian Lore" published in `1929 by Ernest Thompson Seton: "PLEIADES AS A TEST OF EYESIGHT This star group has always been considered a good test of eyesight. I once asked a ...

My thanks for all of the people behind APOD for providing the easy access to these magnificent images and for the explanations / backup for the images and the manner in which they are presented. It is appreciated.

Same here, the site comes up with a message similar to "Page Unavailable."

The comments on the vertical exaggeration are interesting to me. As a civil engineer, all of the road designs we do (profile views) are exaggerated 10 times vertically to allow us to see very flat slopes. The use of vertical exaggeration is a well respected means of viewing topography for watershed ...

Anyone know what exposure time was used? The earth image looks slightly streaked, as if a long exposure time was used.

Thanks

Charlie