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Astronomy Picture of the Day -- Mars: Shadow at Point Lake
NASA ^ | February 05, 2013 | (see photo credit)

Posted on 02/05/2013 5:05:14 PM PST by SunkenCiv

Explanation: What if you saw your shadow on Mars and it wasn't human? Then you might be the robotic Curiosity rover currently exploring Mars. Curiosity landed in Gale Crater last August and has been busy looking for signs of ancient running water and clues that Mars could once have harbored life. Pictured above, Curiosity has taken a wide panorama that includes its own shadow in the direction opposite the Sun. The image was taken in November from a location dubbed Point Lake, although no water presently exists there. Curiosity has already discovered several indications of dried streambeds on Mars, and is scheduled to continue its exploration by climbing nearby Mt. Sharp over the next few years.

February 05, 2013

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; mars; science
[Credit: NASA, JPL-Caltech, MSSS, Mastcam]

1 posted on 02/05/2013 5:05:22 PM PST by SunkenCiv
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To: SunkenCiv
JPL did well with this one. Those guys are getting good at this stuff.

/johnny

2 posted on 02/05/2013 5:11:32 PM PST by JRandomFreeper (Gone Galt)
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To: SunkenCiv

the landing sequence still blows my mind.


3 posted on 02/05/2013 5:12:39 PM PST by beebuster2000
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To: SunkenCiv

Looks like fishing at the lake is not going to be very good this year.


4 posted on 02/05/2013 5:13:29 PM PST by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
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To: JRandomFreeper

The Cassini craft has been in the field for quite a while as well. New Horizons launched in 06 and won’t reach its destination till 2015


5 posted on 02/05/2013 5:16:51 PM PST by cripplecreek (REMEMBER THE RIVER RAISIN!)
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To: SunkenCiv

As Buzz Aldrin said from the Moon, “Magnificent desolation”. It is almost like some of the desert areas in Utah.


6 posted on 02/05/2013 5:18:36 PM PST by jmcenanly ("The more corrupt the state, the more laws." Tacitus, Publius Cornelius)
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To: cripplecreek
Yep. Those guys are smart.

/johnny

7 posted on 02/05/2013 5:21:23 PM PST by JRandomFreeper (Gone Galt)
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
See, I knew it! Traces of intelligent life on Mars... ;')

8 posted on 02/05/2013 5:21:44 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: beebuster2000
No kidding. Rube Goldberg lives on Mars.

/johnny

9 posted on 02/05/2013 5:22:22 PM PST by JRandomFreeper (Gone Galt)
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To: SunkenCiv
Excellent panorama, worth clicking through to the ASAP page and directly on the original posted image, for the 6.8 meg stitch.

I always like taking note of the dust accumulating on the vehicle. (Looks like a nice day. - no place to raise your kids, though. In fact, it's cold as hell.)

10 posted on 02/05/2013 5:42:42 PM PST by Prospero (Si Deus trucido mihi, ego etiam fides Deus.)
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To: Prospero
Not only cold, but sorta lacking in atmospheric pressure and O2. But those are things we can compensate for with technology. ;)

/johnny

11 posted on 02/05/2013 6:29:44 PM PST by JRandomFreeper (Gone Galt)
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To: Prospero

Having ones blood boil out through the eyes probably gets old in a hurry, too. ;’)

I started the d/l of the big one, and my internet link hiccoughed. Will try again later. :’(


12 posted on 02/05/2013 6:44:56 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: SunkenCiv

Looks like 30 more years of no extra-earth human spaceflight.


13 posted on 02/05/2013 6:47:07 PM PST by mkboyce
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To: TheOldLady; Fred Nerks; JRandomFreeper; beebuster2000; BenLurkin; cripplecreek; jmcenanly; ...

This may also be of interest, and of course, there’s a much better chance of someday visiting in person:

Explore 75 Miles of Grand Canyon Trails and Roads With Google Street View
YOUTUBE | February 3, 2013 | DL Cade
Posted on 02/03/2013 6:41:54 PM PST by SWAMPSNIPER
http://www.freerepublic.com/focus/chat/2985018/posts


14 posted on 02/05/2013 7:23:35 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: mkboyce

Our thorough exploration of Mars using robotic means has already far exceeded the pre-Apollo robotic exploration of the Moon; it is very much a necessity to do so in advance of human Mars missions, which technically may (or may not) be possible per se right now. My view is that Von Braun’s risk minimizing approach is best and that this robotic exploration is rooted in that.

Von Braun’s idea of going to Mars matured into a follow-on from Apollo. He envisioned assembling the Mars mission in LEO, using a minimum of 12 Saturn V launches (IOW, the entire lunar program and a bit more, just to do one Mars mission).

If enough water were available in near-Earth orbit, using photovoltaics to turn it into hydrogen and oxygen for the fuel for Mars shots (and probably for other interplanetary missions), a big kick engine to push the manned portion of the mission to Mars and back, along with its tank, would be the rest that would be needed from Earth’s surface. The booster would have to be easy to recycle for each leg, as the work would be done in micrograv conditions, and on both ends.

Obviously for this to be feasible, there would also have to be an ample water supply near Mars as well. An automated system to gather the water, deploy photovoltaics, and accumulate the fuel and oxidizer, would have to be launched, probably in modules, to arrive, self-manage, and operate some few years prior to the crew launch. This ensures that the fuel for the return trip would be available before they set out.

This would have to be financed by asteroid mining, which would use much of the same kind of technology. Mars exploration would also have to be with a view of colonization, which IMHO is probably a nutty thing to try for the next, oh, century or so. Meanwhile, a permanent human presence in space, and in orbit around Mars in particular, would have to be established.


15 posted on 02/05/2013 7:35:31 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: JRandomFreeper
There is a lot of material for these in the raw image gallery that they don't publish for some reason. I paid for a download of PTgui, which does a comparable job, and I can pick my subjects. Hate to say it but I missed this one! Note they have given it the "way-it-would-look-on-earth" treatment, which kind of baffles me. If you look at the Sol 106 Mastcam raw image gallery you will see the natural appearance. I read a comment from JPL saying that although they couldn't guarantee exactly how it would appear if you were there, the raw images are the way it would appear if you took cellphone pictures of it, because it is essentially the same technology.
16 posted on 02/05/2013 7:44:24 PM PST by dr_lew
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To: dr_lew
Note they have given it the "way-it-would-look-on-earth" treatment, which kind of baffles me.

Because my eyes are adapted to the amount of light that reaches Terra, the light balance thing they do allows a human like me (seriously, I'm human, really, cooks are human) to identify objects like metamorphic rock vs. sedimenatary rock pretty easily.

In natural Mars light, I would have a tougher time identifying objects, not counting the freezing and exploding and asphyxiating thing.

/johnny

17 posted on 02/05/2013 7:59:14 PM PST by JRandomFreeper (Gone Galt)
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To: BenLurkin

I wish they had sent this one to the Cydonia region.


18 posted on 02/05/2013 8:15:20 PM PST by PhiloBedo (You gotta roll with the punches and get with what's real.)
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To: JRandomFreeper
I know that's what they say, but take for example this component image showing the rover deck:

It looks fine, right? But compare it to the panorama and you'll see the change in color balance. So let's see it the way it looks. It's on Mars! It IS Mars!

19 posted on 02/05/2013 8:33:53 PM PST by dr_lew
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To: dr_lew
Dude, I use a DSP filter box to dial down audio so I can listen to morse code in the range I've got left in my hearing and lose the noise. I'm all for electronic enhancement to augment my senses. ;)

Besides, I'm moderately color-blind. I'm happy with a sharp, crisp view. If I need color data, there's a machine for that and I can view the graph.

/johnny

20 posted on 02/05/2013 8:39:44 PM PST by JRandomFreeper (Gone Galt)
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