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NASA's Dawn spacecraft begins its approach to Ceres

 
 
edgarblythe
 
  1  
Reply Sat 17 Jan, 2015 08:48 am
@izzythepush,
I did put the story on my Rover's on Mars thread.
izzythepush
 
  1  
Reply Sat 17 Jan, 2015 09:24 am
@edgarblythe,
Sorry, I can be a right dopey bastard at times.
edgarblythe
 
  1  
Reply Sat 17 Jan, 2015 09:26 am
@izzythepush,
You can? I hadn't been paying attention.
0 Replies
 
edgarblythe
 
  1  
Reply Mon 19 Jan, 2015 10:57 pm
@izzythepush,
0 Replies
 
edgarblythe
 
  1  
Reply Tue 20 Jan, 2015 02:34 pm
First look
http://www.csmonitor.com/var/ezflow_site/storage/images/media/content/2015/0120-ceres-dawn-spacecraft/19495075-1-eng-US/0120-Ceres-Dawn-spacecraft_standard_600x400.jpg
0 Replies
 
edgarblythe
 
  1  
Reply Wed 18 Feb, 2015 04:53 pm
White spots on Ceres
http://images.nationalgeographic.com/wpf/media-live/photos/000/886/cache/pia19056_88698_990x742.jpg
FBM
 
  1  
Reply Wed 18 Feb, 2015 05:52 pm
Nice images!
0 Replies
 
rosborne979
 
  1  
Reply Wed 18 Feb, 2015 06:37 pm
@edgarblythe,
edgarblythe wrote:
White spots on Ceres

Can't wait to find out. Maybe it's ice? Wouldn't that be fun.
edgarblythe
 
  1  
Reply Wed 18 Feb, 2015 07:38 pm
@rosborne979,
It has me anticipating. Just don't know what.
0 Replies
 
Setanta
 
  1  
Reply Thu 19 Feb, 2015 03:24 am
Ice would be very likely--the so-called asteroid belt is just chock full of water ice.
0 Replies
 
Setanta
 
  1  
Reply Thu 19 Feb, 2015 03:58 am
From the Wikipedia article on Ceres:

Quote:
The surface composition of Ceres is broadly similar to that of C-type asteroids. Some differences do exist. The ubiquitous features of the Cererian IR spectra are those of hydrated materials, which indicate the presence of significant amounts of water in the interior.
0 Replies
 
edgarblythe
 
  1  
Reply Fri 27 Feb, 2015 03:58 pm
My first thought was ice. Can't imagine anything other.
0 Replies
 
FBM
 
  1  
Reply Sat 28 Feb, 2015 08:11 pm
Herschel confirmed water ice on Ceres last year: http://www.space.com/24366-dwarf-planet-ceres-water-ice-volcanoes.html
0 Replies
 
edgarblythe
 
  1  
Reply Sat 28 Feb, 2015 09:34 pm
I have a hard time understanding eruptions of the ice. I guess my brain is too small.

Wait. I read the rest of your link and it makes more sense now.
0 Replies
 
Setanta
 
  2  
Reply Tue 3 Mar, 2015 04:06 pm
This page from the Planetary Society is kind of cool. It shows Ceres rotating. I thought people might enjoy the animation. (Created, if i understand the author correctly, from 27 image.)
edgarblythe
 
  1  
Reply Tue 3 Mar, 2015 04:38 pm
I saw one of the spacecraft's shadow on there earlier. Thanks for the rotation pics.
0 Replies
 
FBM
 
  1  
Reply Tue 3 Mar, 2015 06:55 pm
Yep. Thanks for the pics. They are outstanding. Meanwhile:

Quote:
Bright Spots on Ceres Likely Ice, Not Cryovolcanoes
by NANCY ATKINSON on MARCH 3, 2015

...
While cryovolcanoes have been bantered around as a possibility, during the briefing yesterday the science team downplayed that possibility, citing several pieces of evidence.

First, Raymond said the spots are consistent with highly reflective materials that may contain ice or salts...


http://www.universetoday.com/119235/bright-spots-on-ceres-likely-ice-not-cryovolcanoes/
rosborne979
 
  1  
Reply Tue 3 Mar, 2015 08:34 pm
@FBM,
Let's assume the bright spots are ice of some type. Then the next question might be, are there just a few little spots of ice, or is the whole thing a giant ice ball just covered in a layer of dust?
FBM
 
  1  
Reply Tue 3 Mar, 2015 09:01 pm
@rosborne979,
We'll be in orbit in a few days. I hope we find out...
0 Replies
 
Lordyaswas
 
  1  
Reply Tue 3 Mar, 2015 10:19 pm
@Setanta,
Wonderful!


0 Replies
 
 

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