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We choose to go to the moon. We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.
Originally posted by Phage
reply to post by EnlightenUp
The MSL (scheduled for launch next year) will carry cameras which operate in the same manner as "standard" digital cameras. Using Bayer pattern filters, they will provide full color images rather than filtered grayscale images which will need to be further processed. The Bayer filters use broadband red, green, and blue filters. The colors will be as true as those produced by the cameras used here on Earth.
Originally posted by Phage
reply to post by Blaine91555
That's true.
But using a white target on the surface of Mars is problematic. It would provide the true color of objects if they were under "white" light. Is sunlight on the surface of Mars "white"? Sunlight filtered through that dust would have a red tinge. A piece of paper which looks white (to our eyes) in Earthly sunshine would not appear white on the surface of Mars.
Do we want to know what the colors would be if they were on Earth or how they would appear if we were standing on Mars? Tricky.
Originally posted by zorgon
They feed the IT'S RED crowd...
and on the same site they feed the IT'S BLUE crowd...
I say we take up a collection and buy them a couple of old fashioned point and shoot cameras and get us a few decent pictures. Perhaps all that high tech stuff is just too much for them to handle
Originally posted by Phage
What data are you looking for?
Originally posted by Blaine91555
They will still have to use a target to set the white point or the color will not be true.
Originally posted by ArMaP
I can show you red photos
brown photos
or blueish photos
with no need for a new camera.
Originally posted by Phage
reply to post by K-PAX-PROT
Scientists, geologists in particular, do not care about "correct and original" colors. There is much more to be learned about mineralogy by using particular wavelengths, most of which are not visible to the human eye. That is why the imagers use those wavelengths.
The cameras are not there to provide pretty pictures with "true colors". They are there to provide scientific data.
Our Exploration Strategy: Follow the Water!
To discover the possibilities for life on Mars--past, present or our own in the future--the Mars Program has developed an exploration strategy known as "Follow the Water."
Following the water begins with an understanding of the current environment on Mars. We want to explore observed features like dry riverbeds, ice in the polar caps and rock types that only form when water is present. We want to look for hot springs, hydrothermal vents or subsurface water reserves. We want to understand if ancient Mars once held a vast ocean in the northern hemisphere as some scientists believe and how Mars may have transitioned from a more watery environment to the dry and dusty climate it has today. Searching for these answers means delving into the planet's geologic and climate history to find out how, when and why Mars underwent dramatic changes to become the forbidding, yet promising, planet we observe today.
Future Missions
To pursue these goals, all of our future missions will be driven by rigorous scientific questions that will continuously evolve as we make new discoveries.
Brand new technologies will enable us to explore Mars in ways we never have before, resulting in higher-resolution images, precision landings, longer-ranging surface mobility and even the return of Martian soil and rock samples for studies in laboratories here on Earth.
Originally posted by fooks
anyone know if they found some borax, yet?
The discovery of Martian soil containing high quantities of sulphur and traces of water has sparked new questions about activity beneath the planet's surface. Scientists are puzzling over the contents of the bright white and yellow soil, first discovered after Mars rover Spirit churned it up while struggling to cross a soft patch of soil in the Columbia Hills region nearly a year ago. The material consists of sulphate salts associated with iron and likely calcium, substances not expected to be found on the planet's surface. Some scientists have speculated the materials might have been deposited in ancient times by liquid water on what is now thought to be a dry planet. However, Ray Arvidson, the deputy principal investigator for NASA's twin Mars rovers, Spirit and Opportunity, said that is only one possible explanation. "This material could have been left behind by water that dissolved these minerals underground, then came to the surface and evaporated, or it could be a volcanic deposit formed around ancient gas vents," Arvidson said in a statement.
Originally posted by Phage
NASA really doesn't care about the conspiracy speculation.
Like it or not, NASA is following a plan for robotic exploration of Mars which was first developed years ago.
Believe it or not, they really are looking for signs of life on Mars. But Mars is a big place, with a wide range of conditions.
The men and women working on the projects have ideas about how to go about answering those questions.
Anyone who thinks they have a better idea about how to do it is welcome to go through the process (of hard work, school, and stuff) to put themselves into a position to help make the decisions that have to be made. But I wouldn't be surprised if after doing that, "true color" images would not be high on the list.
But again, in a couple of years we will get those pictures.
Take the cold tolerance of bacteria that thrive in arctic ice, add the ultraviolet resistance of tomato plants growing high in the Andes mountains, and combine with an ordinary plant. What do you get? A tough plant "pioneer" that can grow in Martian soil. Like customizing a car, NASA-funded scientists are designing plants that can survive the harsh conditions on Mars. These plants could provide oxygen, fresh food, and even medicine to astronauts while living off their waste. They would also improve morale as a lush, green connection to Earth in a barren and alien world.
Andrew Stewart, a planetary geochemist at the Swiss Federal Institute of Technology, said Mars' cooling core might restore magnetism to the red planet. "If liquid metal moves around a solid core, it could create a natural dynamo like the one found in Earth's core," said Stewart, who co-authored the study detailed in today's online edition of the journal Science.
Originally posted by ArMaP
Originally posted by Blaine91555
They will still have to use a target to set the white point or the color will not be true.
They can use the LEDs method used on Phoenix, or some other method like that, in which they know exactly the wavelength of the ligth.