Re: News Briefs: Astronomy, Astophysics & Space Exploration
Posted: Mon Feb 07, 2011 10:14 am
by voralfred
Wow!
Thanks, Curt!
They are all spectacular, but I particualrly liked the one of the dunes on Mars, and the picture of all of Orion (especially on the high-res form available with one more click) http://www.flickr.com/photos/badastrono ... 9/sizes/o/
astrophotographer and amateur astronomer Rogelio Andreo
Re: News Briefs: Astronomy, Astophysics & Space Exploration
WILD speculation here, but notice the observation: "It is believed its atmosphere consists of either vaporized potassium and sodium or titanium oxide." Titanium oxide is a compound used in alternative solar cell designs...remember the Mercury Array in Charlie's "Flying to Valhalla?"
Like I said, wild speculation!
Re: News Briefs: Astronomy, Astophysics & Space Exploration
It's so interesting when atmospheres freeze onto planets. Eventually I'm sure Jupiter will become the brightest planet in our solar system, but not for ages!
Re: News Briefs: Astronomy, Astophysics & Space Exploration
Well ... it does show a bit more than our group photo the Cassini probe shot while it was in Saturn's shadow.
For whomever is not quite sure:
Cassini Spacecraft Snaps Photo of Earth from Saturn
Leading up to the event, NASA urged Earthlings to "wave at Saturn" at the appointed time, a purely symbolic gesture ...
They also encouraged the public to ... take pictures of groups waving at Saturn.
Re: News Briefs: Astronomy, Astophysics & Space Exploration
Posted: Fri Sep 06, 2013 12:47 pm
by E Pericoloso Sporgersi
...
Virgin's SS2 Spacecraft Reaches the Stratosphere
Yay!
Click on the image
Re: News Briefs: Astronomy, Astophysics & Space Exploration
Posted: Sun Sep 08, 2013 12:27 pm
by E Pericoloso Sporgersi
...
NASA's Trick Moon Picture
In the image below, assume that the upper edge is north.
In the left (western) half of the picture, the craters' inner walls are lit on the eastern side.
In the right (eastern) half, the inner walls are lit on the western side.
Re: News Briefs: Astronomy, Astophysics & Space Exploration
Posted: Tue Sep 10, 2013 1:21 pm
by voralfred
E Pericoloso Sporgersi wrote:...
NASA's Trick Moon Picture
In the image below, assume that the upper edge is north.
In the left (western) half of the picture, the craters' inner walls are lit on the eastern side.
In the right (eastern) half, the inner walls are lit on the western side.
Clearly left and right picture halves were taken several days apart and certainly NOT during a new moon.
I totally agree with your analysis. But you should have explained that if it had been during the "new moon" (as seen from Earth), that would be fully lit, from "above" with no shadow, since this is the "hidden side". I was taken aback for awhile...
Re: News Briefs: Astronomy, Astophysics & Space Exploration
Posted: Sun Nov 17, 2013 5:52 am
by E Pericoloso Sporgersi
...
Promising Comet ISON Now Brightening for Stargazers on Earth.
Remember to get up three hours before the sun!
Mike Hankey of Monkton, Maryland took this photo of Comet ISON in outburst the morning of Nov. 14.
The tail now shows multiple streamers.