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In late November 2005 while descending "Husband Hill," NASA's Mars Exploration Rover Spirit took the most detailed panorama so far of the "Inner Basin," the rover's next target destination. Spirit acquired the 405 individual images that make up this 360-degree view of the surrounding terrain using five different filters on the panoramic camera. The rover took the images on Martian days, or sols, 672 to 677 (Nov. 23 to 28, 2005 -- the Thanksgiving holiday weekend).
This image is an approximately true-color rendering using camera's 750-, 530-, and 430-nanometer filters. Seams between individual frames have been eliminated from the sky portion of the mosaic to better simulate the vista a person standing on Mars would see.
New light on Mars methane mystery
Large quantities of methane gas have been detected on Mars, NASA scientists have announced in Science journal.
The gas could be produced either by geological activity or by life.
Methane was detected in the Martian atmosphere five years ago; scientists have found it is more abundant over particular parts of the planet.
It should last for only a short time in the atmosphere until it is destroyed by sunlight, and so its continued presence means it is being replenished.
This suggests the methane is made by an ongoing process.
Nili Fossae (Nasa)
We've demonstrated there are regions of active (methane) release
Michael Mumma, Nasa
But the ultimate origin of the methane could either be an ancient or a modern one, say the researchers.
"The fact that we have found three discrete regions where Mars is releasing methane at this time means we have a window into processes occurring under the surface of the planet," said co-author Michael Mumma, a senior planetary scientist at Nasa's Goddard Spaceflight Center in Maryland, US.
"The production (of methane) is likely due to only one of two possibilities. The first is geochemistry, the second is biology. That raises much interest on which one is the dominant production mechanism."
news.bbc.co.uk...
"Methane is quickly destroyed in the Martian atmosphere in a variety of ways, so our discovery of substantial plumes of methane in the northern hemisphere of Mars in 2003 indicates some ongoing process is releasing the gas," said Dr. Michael Mumma of NASA's Goddard Space Flight Center in Greenbelt, Md. "At northern mid-summer, methane is released at a rate comparable to that of the massive hydrocarbon seep at Coal Oil Point in Santa Barbara, Calif."
- Michael J. Mumma, Goddard Space Flight Center for the National Aeronautics and Space Administration in Greenbelt, Md.
"Our team has discovered Methane on Mars. The surprising thing about methane on Mars is that - first, that we detected it meaning its recently generated. But in addition, we find that it is being released from several discrete vents, or sites, on the planet's surface, in either mid-summer in the northern hemisphere or early spring in the southern hemisphere on Mars. And yet at a later season, we see essentially no methane."
Originally posted by scubagravy
Great thread Zorgon,
But may a simple guy ask a simple question??
Why (on earth) haha can we get great color pictures of mars which to me have a striking resemblance to places here on earth, though the we receive such pasty pictures from the moon??
Originally posted by scubagravy
Why (on earth) haha can we get great colour pictures of mars which to me have a striking resembelence to places here on earth, though the we receive such pastey pictures from the moon??
Originally posted by rocksolidbrain
The colors in Mars pictures are not 'real'. They are a guess-estimate at the most. So its color is only approximate, just like all colored images from the rover. Its not green strictly.
The primary colors of light are needed when we are mixing different colored light together. This is done in a computer monitor (whether using LCD technology, or the older CRT technology). The computer screen can emit only three colors, and every color we see on the screen is produced from a mixture of those three primary colors.
And as far as I know, methane is colorless.. and wiki says so.
en.wikipedia.org...
So its not methane. If it is it should be invisible.
Methane is a major substance in most of the planets in our solar system. Its not directly related to life or its processes, which means its presence does not imply life, just as presence of CO2 or C won't tell you that there are living things (C-based). So the whole post is saying nothing really.
Originally posted by rocksolidbrain
Because Moon is grey ??? Or are you asking why moon is not like earth ? Because it is not like earth, so it won't look like earth.
Mars is much more like earth, size, atmosphere, surface, rocks, minerals... mostly the same. So no surprise that it resembles earthly places. Some pics from venus also look earthly.
Funny that you say that, the only people that I see using the "swamp gas" explanation are "believers" that think that it is funny to make a one line post saying just that, I don't remember seeing anyone on ATS using "swamp gas" as an explanation to a UFO sighting.
Originally posted by zorgon
Well maybe so... but it appears that 'swamp gas' is NOT because all the skeptics use 'swamp gas' to explain UFO's...
Originally posted by zorgon
Also the rovers have a color chart... the sundial
All you need is three filters...
The primary colors of light are needed when we are mixing different colored light together. This is done in a computer monitor (whether using LCD technology, or the older CRT technology). The computer screen can emit only three colors, and every color we see on the screen is produced from a mixture of those three primary colors.
I wish you skeptics would learn a little basic light physics
Originally posted by zorgon
Yeah especially the contrail and shadow on Venus
Originally posted by scubagravy
Great thread Zorgon,
But may a simple guy ask a simple question??
Why (on earth) haha can we get great colour pictures of mars which to me have a striking resembelence to places here on earth, though the we receive such pastey pictures from the moon??
Originally posted by ArMaP
PS: Why does Mike Singh says that those are the true colours, did he took the photo himself?
PPS: And why didn't he posted it himself instead of using you as a proxy poster?
The Atacama desert lies on the western edge of South America, covering much of northern Chile and parts of Argentina. It is the closest one can get to Mars while remaining grounded on Earth. High atop the Socompa volcano on the Eastern edge of the Atacama desert, the atmosphere is thin, the ultraviolet radiation is intense, and the climate is dry. Nevertheless, the improbable has been found: life.
I would suggest you to watch Moon Rising. UFO Greatest Story Ever Denied 2
Originally posted by weedwhacker
I've seen the 'green fog' on Mars before, guess it WAS Mike Singh.
Originally posted by mikesingh
Be that as it may, here is a good SOHO pic of a 'Sun Cruiser'. Of course, it could be swamp gas too!!
SOHO/LASCO pic of a 'Sun Cruiser'.
Originally posted by zorgon
So your saying NASA lies?
snip
If we can make such awesome colors we see on our screen surely NASA can do the same in their images? Hmmm?
Originally posted by zorgon
Well maybe so... but it appears that 'swamp gas' is NOT because all the skeptics use 'swamp gas' to explain UFO's...
You cannot have it both ways...
Originally posted by zorgon
we know that 'arm chair experts' have all the answers
Originally posted by ArMaP
The problem is that when we use the wrong filters we cannot get the real colours because different materials reflect the wavelengths in different ways, as you know.