Search found 5 matches
- Mon Feb 26, 2007 3:14 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: White Ridges on Mars (APOD 20 Feb 2007)
- Replies: 20
- Views: 7367
You are right!! Rotating the picture 180 degrees makes a BIG difference and the blue areas do look like shadows. Also, I have noticed that if one magnifies the blue areas, they look more like discolored solid than a liquid. That seems to answer my original question that started all of this. (see the...
- Wed Feb 21, 2007 3:30 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: White Ridges on Mars (APOD 20 Feb 2007)
- Replies: 20
- Views: 7367
White Ridges on Mars (APOD 20 Feb 2007)
In the picture of Mar surface (Feb. 20, 2007)--What is it that looks like lakes in the valley between the ridges?? If those are lakes, what are they composed of??
Al
Al
- Thu Dec 07, 2006 3:19 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Phobos: Irregular Shape? (APOD 3 Dec 2006)
- Replies: 43
- Views: 15535
John, and all; Yes, I see some of the 'lines' that look as if they are made up of small craters. But others don't seem to be. Maybe I chose the wrong word--'rolling'. Drag may fit what I meant better. I pictured the moon running into a bunch of something, like from the right of the picture. The piec...
- Tue Dec 05, 2006 8:33 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Phobos: Irregular Shape? (APOD 3 Dec 2006)
- Replies: 43
- Views: 15535
Phobos
Thanks John. What you said makes sense. Now, just suppose that Phobos ran into a bunch of pieces of something from the right as John suggests. One would think that pieces close enough to the moon to be attracted by gravity would 'roll' along the surface making tracks as we see them. I would expect t...
- Tue Dec 05, 2006 4:55 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Phobos: Irregular Shape? (APOD 3 Dec 2006)
- Replies: 43
- Views: 15535
Layers of Phobos
Note that the layers of Phobos appear parallel. If the lines came from something external to the moon, I would think the layering effect would not appear so perfectly parallel. Also note that some of the layering goes down into some (but not all) of the craters. To me this means that the layering go...