text: Thread: Mars picture
  01-07-2004�11:08 AM
  It's great to finally see some high resolution pictures of the "red planet" up close. In the picture we can see the orange/red sand, orange/grey rocks, and the orange sky.
  Hold on a second...... ORANGE SKY????
  If you were standing on the surface of the planet, looking up, wouldn't the sky seem blue? I realize there might be a lot of orange dust particles in the air, but still.....
  Are there any geologist/meteorologist/science people who would know the answer.
  (or could there be another reason) Every day I break my previous record of consecutive days still alive.
  Reply With Quote 01-07-2004�11:09 AM
  Case in point..... look at the sky.
  Reply With Quote 01-07-2004�11:13 AM
  the sunlight is scattered by the molecules making up the atmosphere... mostly by the oxygen/nitrogen. mars doesnt have very much of that :P
  Reply With Quote 01-07-2004�11:14 AM
  OK, let me give it a try. Our sky is mostly blue because thats the color of nitrogen(N), wich is about 75-80% of our atmosphere.
  Mars has, I THINK, an atmophere mostly composed of Carbone dioxide(CO2), which turns the sky that redish color, like sunset in polluted L-A.
  Reply With Quote 01-07-2004�11:15 AM
  repost, Dale:http://www.bcsportbikes.com/forum/sh...threadid=27267
  great pictures though, eh?
  Reply With Quote 01-07-2004�11:19 AM
  Originally posted by miraclejoe OK, let me give it a try. Our sky is mostly blue because thats the color of nitrogen(N), wich is about 75-80% of our atmosphere.
  Mars has, I THINK, an atmophere mostly composed of Carbone dioxide(CO2), which turns the sky that redish color, like sunset in polluted L-A. yes
  Reply With Quote 01-07-2004�11:31 AM
  Sorry about reposting the pic, I just wanted to draw attention to the sky colour.
  Some good answers so far, but I thought the sky seemed blue because light, which is normally white, is slowed down by the atmoshere, therefore we see the sky in the blue spectrum. Sort of a similar concept to looking at a rainbow. Perhaps because there is little water vapour in the air, the light passes through easier?
  In polluted LA, it looks more brown than orange. Although looking at the sun through smoke turns it a neat pinkish/red colour. Also, if you go to Banff or Jasper, the lakes are a brilliant blue or green, I'm assuming that's because of the density of the particles in the water, and how they effect light when it passes through it.
  Reply With Quote 01-07-2004�11:38 AM
  brilliant blue water might appear to be an emerald green if you look at it with a Netral density polarizing filter. this just filters out the reflection off the water, and you see its real color. or more of it neway.
  the sunligh hits all the particles in the atmosphere, the smog, the ozone, the air (nitrogen and oxygen)... everything scatters the light a little differently, while these all effect the color, the majority of the atmosphere is made of nitrogen, and it scatters blue. hence the blue color. air we breath is about 78%nitrogen, 20%oxygen 1%argon, and a whole bunch of other thing well under 1%
  Reply With Quote 01-07-2004�11:40 AM
  and if you think about that, the polution in la lays at a much lower level than the atmosphere about it. above la the sky is blue.... so you have this mostly blue scattered light, filtering through the smog, and it gives you another color, mostlly made up from whats left of the white light in the blue.
  Reply With Quote 01-07-2004�08:37 PM
  If I wanna see orange rocks I will wear orange sunglasses and look at the gravel on the side of the road. P.S. Unless there are terrorists on Mars, I think it's a huge waste of money I.M.O.
  Reply With Quote 01-07-2004�09:39 PM
  Reply With Quote 01-07-2004�11:32 PM
  Originally posted by Bean Unless there are terrorists on Mars, I think it's a huge waste of money I.M.O. This electron microscope image is a close-up of the center part of photo number S96-12301. While the exact nature of these tube-like structures is not known, one interpretation is that they may be microscopic fossils of primitive, bacteria-like organisms that may have lived on Mars more than 3.6 billion years ago. A two-year investigation by a NASA research team found organic molecules, mineral features characteristic of biological activity and possible microscopic fossils such as these inside of an ancient Martian rock that fell to Earth as a meteorite. The largest possible fossils are less than 1/100th the diameter of a human hair in size while most are ten times smaller. NASA caption and photo.
  more pics herehttp://seti1.setileague.org/photos/marspix.htm
  Reply With Quote 01-07-2004�11:39 PM
  a chunk of mars, left its gravity, and traveled to earth, survived the entry, landed, was found and has organic molecules on it?
  i think they need to be a little more concerned about about contamination of earth organics.
  Reply With Quote 01-07-2004�11:57 PM
  imagine if you could live there in your life time what a thrill.... i wonder whats the next step towards the mars program
  Reply With Quote 01-08-2004�12:06 AM
  Originally posted by Jayson i think they need to be a little more concerned about about contamination of earth organics. contamination? it's a possibility that's how life began here. bacteria from earth have been found in the extreme reaches of our atmosphere, basically outer space. they may in turn seed another planet.