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General Discussion => Science & Nature => Topic started by: sam on March 07, 2010, 20:34

Title: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: sam on March 07, 2010, 20:34

http://news.nationalgeographic.com/news/2010/03/photogalleries/100302-best-space-pictures-week-84/?now=2010-03-03-00:01#martian-dark-streaks-trough_13432_600x450.jpg

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Simon on March 07, 2010, 21:50

I like the cobweb.  :)

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Clive on March 07, 2010, 22:35

I am a soft touch for star clusters, nebulae and galaxies.  I second Simon.   :D

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: sam on March 08, 2010, 01:15

I quite liked the brightness temperature map... but is def one for the geeks... just in case you were worried: Brightness temperature is the temperature at which a black body in thermal equilibrium with its surroundings would have to be to duplicate the observed intensity of a grey body object at a frequency ν. This concept is extensively used in radio astronomy and planetary science. (I can't beat the explanation of wiki this time; http://en.wikipedia.org/wiki/Brightness_temperature)

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Clive on March 08, 2010, 10:16

I suspect this thread is about to degenerate in 3...2...1...

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Rodders on March 08, 2010, 13:01

Am I in time for the 'Chocolate' jokes?   ???

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Clive on March 08, 2010, 13:13

I was thinking more in the line of hot black bodies.   :o:

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: sam on March 08, 2010, 13:53

 :crazy:

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Rodders on March 08, 2010, 14:56

Quote from: Clive on March 08, 2010, 13:13

I was thinking more in the line of hot black bodies.   :o: 

I'll send you a Zulu, Clive.

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Rik on March 08, 2010, 15:42

Is a Zulu Clive something like a Zulu Tango?

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Simon on March 08, 2010, 16:35

You'll have to tell us what a Zulu Tango is first.

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Rik on March 08, 2010, 16:43

Clive will explain.  :devil:

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Simon on March 08, 2010, 16:49

A Zulu with orange hair? :)x

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Rik on March 08, 2010, 16:52

A little, maybe. Or someone whose dancing ends on the cutting room floor.

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Clive on March 08, 2010, 16:56

The Zulu tango was before my time Rik.  Sounds a fascinating dance!   ;D

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Rik on March 08, 2010, 16:57

It was, but you really had to get the spear in the right position.

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Clive on March 08, 2010, 18:11

Otherwise it could have painful consequences.   ;D  I always try to get my spear in the right position Rik.  I get told off otherwise!   :devil:

Title: Re: Space Photos This Week: Mars Streaks, Cosmic Web, More
Post by: Rik on March 08, 2010, 18:15

 :devil:  :-X