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Member (Idle past 5260 days) Posts: 766 From: Newcastle, Australia Joined: |
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Author | Topic: Touchdown on Titan! | ||||||||||||||||||||
RAZD Member (Idle past 1405 days) Posts: 20714 From: the other end of the sidewalk Joined: |
... that baby can float when the tide comes in.
anybody know if they planned for a liquid landing? yep http://www.nasa.gov/...5304main_Huygens_onto_Sea_320x240.mov but now that it is open what happens? This message has been edited by RAZD, 01-15-2005 21:20 AM we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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jar Member (Idle past 394 days) Posts: 34026 From: Texas!! Joined: |
Yes they did. It was desgined to be self righting in liquid. In fact, a liquid landing would have been surer. In a land landing there was no assurance that it would be able to orient its antennas properly.
In addition, many of the experiments work better if they could sample a liquid medium. Aslan is not a Tame Lion
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Sylas Member (Idle past 5260 days) Posts: 766 From: Newcastle, Australia Joined: |
The probe on Titan is not a rover, and could only operate as long as it had battery power. It lasted for about 90 minutes, which is a spectacular effort. There will be no more data transmitted from the surface, but no doubt people will be busy with has been found now for years to come. Bravo Huygens, and RIP.
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RAZD Member (Idle past 1405 days) Posts: 20714 From: the other end of the sidewalk Joined: |
looks to me like they were only 8 ft (2.4m) short ...
and they said something about erosion around the nearer rocks (like the one with a "4" on it) and that made me think about tides ... you would think that Saturn would cause significant tides on titan eh? we are limited in our ability to understand by our ability to understand RebelAAmerican.Zen[Deist
{{{Buddha walks off laughing with joy}}}
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jar Member (Idle past 394 days) Posts: 34026 From: Texas!! Joined: |
Well, next time maybe.
Aslan is not a Tame Lion
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RAZD Member (Idle past 1405 days) Posts: 20714 From: the other end of the sidewalk Joined: |
next time maybe they can use fuel cells for power that access the atmosphere ... or the liquid?
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DBlevins Member (Idle past 3776 days) Posts: 652 From: Puyallup, WA. Joined: |
That is spectacular considering it was only designed to last a few minutes after touchdown.
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coffee_addict Member (Idle past 477 days) Posts: 3645 From: Indianapolis, IN Joined: |
I seem to remember that the science channel said that it was designed to work for about 3 hours or so on the surface.
Here is something to relieve stress. a + b = t(a + b)(a - b) = t(a - b) a - b = at - bt a - at = b - bt a - at + t/4 = b - bt + t/4 (a - t/2) = (b - t/2) a - t/2 = b - t/2 a = b Since all numbers are the same, math is useless.
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Rrhain Member Posts: 6351 From: San Diego, CA, USA Joined: |
Jacen writes:
quote: That's a new one I hadn't seen. Problem is in the next-to-last step, of course (due to the nature of squaring), but it's a good one. I'll have to try and remember it. Rrhain WWJD? JWRTFM!
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roxrkool Member (Idle past 989 days) Posts: 1497 From: Nevada Joined: |
Oh wow! That shoreline composite is awesome! To have a rover on Titan would have been incredible. At least we get this, though.
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RAZD Member (Idle past 1405 days) Posts: 20714 From: the other end of the sidewalk Joined: |
yes, I hope there are more pictures still to come even if the probe is now dead.
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Neutralmind Member (Idle past 6124 days) Posts: 183 From: Finland Joined: |
Sorry to bump a 2 year old topic, but well... I tried looking up the net for set dates for any probes to land on Europa or Titan but no luck.
Any projects going on about these two planets?
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Coragyps Member (Idle past 735 days) Posts: 5553 From: Snyder, Texas, USA Joined: |
They've found lakes of methane near one of the poles of Titan.
Nature 445, 61-64 (4 January 2007)
The surface of Saturn's haze-shrouded moon Titan has long been proposed to have oceans or lakes, on the basis of the stability of liquid methane at the surface1, 2. Initial visible3 and radar4, 5 imaging failed to find any evidence of an ocean, although abundant evidence was found that flowing liquids have existed on the surface5, 6. Here we provide definitive evidence for the presence of lakes on the surface of Titan, obtained during the Cassini Radar flyby of Titan on 22 July 2006 (T16). The radar imaging polewards of 70 north shows more than 75 circular to irregular radar-dark patches, in a region where liquid methane and ethane are expected to be abundant and stable on the surface2, 7. The radar-dark patches are interpreted as lakes on the basis of their very low radar reflectivity and morphological similarities to lakes, including associated channels and location in topographic depressions. Some of the lakes do not completely fill the depressions in which they lie, and apparently dry depressions are present. We interpret this to indicate that lakes are present in a number of states, including partly dry and liquid-filled. These northern-hemisphere lakes constitute the strongest evidence yet that a condensable-liquid hydrological cycle is active in Titan's surface and atmosphere, in which the lakes are filled through rainfall and/or intersection with the subsurface 'liquid methane' table.
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