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First full-resolution images of the Martian surface

nasa.gov

61–70 of 150 posts

Re: First full-resolution images of the Martian surface

#61
post #11

Earlier quoted context omitted.

These images aren't even from the main cameras. These are still navcam images. http://en.wikipedia.org/wiki/Curiosity_rover#Rover_instrumen...

I'm psyched they have a camera that can take true color images! Now we can see what Mars looks like without false color filtering. I wonder how close they get with those techniques to the real thing.

http://en.wikipedia.org/wiki/Viking_program

I'm pretty sure the images of the surface there are not altered.

Re: First full-resolution images of the Martian surface

#62
post #56

Random tangent, but I wonder what procedures NASA goES through to scrub all living organisms from the robot itself if one of their aims is to see if they can detect life on the martian planet.

You might find some info here: http://planetaryprotection.nasa.gov/

Re: First full-resolution images of the Martian surface

#64
post #56

Random tangent, but I wonder what procedures NASA goES through to scrub all living organisms from the robot itself if one of their aims is to see if they can detect life on the martian planet.

"NASA uses a variety of methods to measure, control and reduce spacecraft microbial contamination for planetary protection purposes. Assembly of spacecraft hardware is carefully controlled and often takes place in clean-room facilities using, aseptic techniques in order to meet planetary protection requirements. Dry heat microbial reduction techniques first used on the Viking spacecraft are still used today..."

http://planetaryprotection.nasa.gov/methods/

Re: First full-resolution images of the Martian surface

#65

Earlier quoted context omitted.

I wonder if eating away at the current atmosphere of venus is more or less technically challenging then the task of creating an atmosphere from scratch on Mars. Since Venus also has way more mass, I'm guessing humans would feel more comfortable there then on Mars.

My thoughts exactly - Venus seems like a better place to start interplanetary exploration with - as I understand, if you could cool it down to an acceptable temperature, you could walk on the surface with just a breathing apparatus, right?

... and an umbrella which is resistant to sulfuric acid, given that a cooler temperature will no longer evaporate the acid before it reaches the ground.

Re: First full-resolution images of the Martian surface

#66

I absolutely love this stuff. The photos to me are strangely eerie, and even perhaps a little sinister. I have trouble comprehending the size of other planets, photos like these make me feel uneasy (in an exciting way) because they are strikingly similar to landscapes we might find here on earth - yet it's a completely different planet! I'm no longer looking at mars as a red circle as shown in textbooks, but now as v…

The Venera program is definitely one of the "unsung heroes" of planetary exploration.

Perhaps the best resource for surface images of Venus (along with fascinating image reconstruction) is Don P. Mitchell's page: http://mentallandscape.com/C_CatalogVenus.htm

Another fascinating tidbit: the Soviets also performed the first (and to date, only) deployment of a balloon probe on another planet: http://en.wikipedia.org/wiki/Aerobot#The_Venus_Vega_balloons

Re: First full-resolution images of the Martian surface

#67

Random question: Is it silent on Mars? I'm looking at this picture and can't help but wonder what it sounds like. Just curious if Martian weather tends to be windy or calm.

They didn't pack a microphone! Bastards! :P

Considering the propensity for dust storms I'm going to say windy. But the atmosphere is thinner, so this makes it harder to hear? Or quieter?

Re: First full-resolution images of the Martian surface

#68

This was taken by the camera whose sole purpose is to assist with navigation. That is why its B&W, low quality, and stitched. The main camera system will produce full color images that I assume will be much higher quality.

Are there any examples of a picture taken on Earth with the main camera?

Here's a full-resolution picture taken by the descent imager as the heat shield fell away:

http://www.nasa.gov/mission_pages/msl/multimedia/pia16021.ht...

The descent imager uses the same sensor as the main mast cameras, but with different optics.

Re: First full-resolution images of the Martian surface

#69

Earlier quoted context omitted.

I wonder if eating away at the current atmosphere of venus is more or less technically challenging then the task of creating an atmosphere from scratch on Mars. Since Venus also has way more mass, I'm guessing humans would feel more comfortable there then on Mars.

My thoughts exactly - Venus seems like a better place to start interplanetary exploration with - as I understand, if you could cool it down to an acceptable temperature, you could walk on the surface with just a breathing apparatus, right?

It has 92 times Earth's atmospheric pressure at the surface. This would be a bad idea. It would be like being 900 meters deep in the ocean on Earth. 150 meters is about the limit for humans before High Pressure Nervous Syndrome stops the fun.

But around 50km above the surface of Venus, the temperatures are nice, and the pressure is 1 earth atmosphere. You just have to to stay up there.

Re: First full-resolution images of the Martian surface

#70
post #5

i hate to be critical of an image sent from millions of miles away but I have an honest question: Why do images from landers like this always look like there were taken from a iPhone 1's camera?

It has only a 2 megapixel sensor, which is a shame. I am sure that it has something to do with radiation hardening and the other environmental factors. It would be good though if NASA did catch up with sensor technology. I suspect the 2MP sensor was approved years ago when it was state of the art.

Sure they have a 2 megapixel camera, but there are probably good reasons, of which you mentioned one I can think of. The other being that they can only send back limited data which has to contest with scientific experiments and navigation data, and they can take multiple 2MP shots to make a panorama like they do, effectively making a higher res image (assuming they can zoom).
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