Search found 4 matches
- Mon Sep 10, 2012 12:53 pm
- Forum: Starship Asterisk: Handbook
- Topic: APOD assessment poll #8
- Replies: 129
- Views: 75241
Re: APOD assessment poll #8
Don't remember - either link from a friend or more likely in a news item online. But I continue to send links to those I know all the time.
- Mon Jun 06, 2011 1:03 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Geometers Playground Over Wyoming (2011 Jun 06)
- Replies: 65
- Views: 44190
Re: APOD: Geometers Playground Over Wyoming (2011 Jun 06)
Well, the star trails point in multiple directions inconsistent with using a fish-eye lens (especially noticeable at the top center and again directly above the monument); there are errant or missing shadows (mentioned frequently), and the horizon perspective also seems to indicate that the focal po...
- Sun Mar 27, 2011 11:42 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Valles Marineris: The Grand Canyon... (2011 Mar 27)
- Replies: 64
- Views: 9162
Re: APOD: Valles Marineris: The Grand Canyon... (2011 Mar 27
Instead of comparing it to surface features, why not look to the Mariana Trench in the Pacific? More comparable in size; possibly in origin. We think about plate tectonics here so maybe Valles Marineris is the edge of a tectonic plate that existed when Mars still had a molten core -- it wouldn't be ...
- Thu Feb 28, 2008 3:03 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Object in ISS: Sunlight to Shadow (28 Feb 2008) BSoD
- Replies: 6
- Views: 2012
Object in ISS: Sunlight to Shadow (28 Feb 2008) BSoD
In addition to the aircraft in this picture, there is another object moving in the sky - starts in lower middle and moves down off the bottom of the clip. Doesn't look like a plane?