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#29451 Re: Life on Mars » Possible Mars Life signs - Water Amonia Methane » 2004-10-28 20:41:49

Here is another methane claim from the University of Michigan. Scientist that are part of a European Space Agency team. Say that they have detected methane gas on Mars, and the findings will be published in the online Web journal Science Express today. Seems like we have been in the know for months for this.

http://www.umich.edu/news/index.html?Re … 04/r102804

#29452 Re: Space Policy » Space fairing Nations - The ever changing view » 2004-10-28 20:33:19

The X-43a is still progressing for for that magical mach10 speed.

NASA Schedules Hypersonic X-43a, Mach-10 Flight Press Briefing
A news media briefing for the final X-43A hypersonic-research flight is scheduled for Friday, Nov. 5, 2004, at 1 p.m. EST.

http://www.nasa.gov/home/hqnews/2004/oc … isory.html

#29453 Re: Science, Technology, and Astronomy » New Discoveries *3* - ...MORE deep space, extraplanetary, etc. » 2004-10-28 20:22:11

Well speaking of big bangs well not quite the same it now appears that a supernova may be to blame for Human advancment 3 million years ago. All from a layer of iron-60 isotope or chemical variant of iron that is rare on Earth. It has a decay rate or half-life of about 1.5 million years and the measured layer can be dated to about 2.8 million years ago

Ancient Star Dust May Point to Human Origins-Study
http://www.reuters.com/newsArt....6634433

Star dust found deep beneath the Pacific Ocean has led German scientists to speculate that a supernova explosion 3 million years ago might possibly have helped bring about human evolution.

#29454 Re: Unmanned probes » Cassini-Huygens *2* - ...more Saturn/Titan... » 2004-10-28 20:14:01

Titan Rich in Carbons That Gave Life to Earth --NASA
http://www.reuters.com/newsArt....6650745


Saturn's mysterious moon Titan appears to have an environment rich in the carbon-based molecules that spawned life on Earth and winds that etched streaks into its icy surface, NASA scientists said on Thursday.

Most exciting to scientists who hoped to unlock the origins of life by studying chemical reactions in Titan's soil and atmosphere were apparent signs of large amounts of a sort of primordial slush on its frozen surface.

#29455 Re: Human missions » Return to flight slipping » 2004-10-28 19:48:34

I believe the newer alloy tank is made by Lockheed martin Michoud facility ( http://www.lmco.com/michoud/et/description.htm ) . So unless Boeing has the same metal alloy technology I do not think Lockheed would be willing to share that little secret.

#29456 Re: Human missions » Return to flight slipping » 2004-10-28 13:11:41

Would the tank alloy change have the same issue as the external tank on the shuttle with foam falling off or is there a protective casing or something that is part of the rocket design.

#29458 Re: Science, Technology, and Astronomy » Shape-Shifting Satellites?? » 2004-10-28 11:15:12

yup some of the thoughts on doing this have been discused under the tethered elevator thread. Not all is understood with regards to the atmospheric drag and other such things for this style concept. But it does beg for experimentation in the future if we only had the money in NASA's budget.

#29459 Re: Not So Free Chat » VNS Therapy » 2004-10-28 10:36:37

I read some where that there has been work done on creating a recharging process rather than opening a person back up just to change the batteries I though it was something to do with pace makers.

#29460 Re: Science, Technology, and Astronomy » Total Lunar Eclipse - Canada/US/Western Europe » 2004-10-28 10:31:39

I did take a few peaks outside though it was partly cloudy up north here in NH to view this celestial event in between while watching the Red Sox capture the world series title. Was a little disappointed by the clouds.

#29461 Re: Science, Technology, and Astronomy » Prehistoric Dwarf Skeletons » 2004-10-28 10:26:45

So lets turn back the hands of time to when the world was a super continent and move it forward the millions of years. This will tell us where the species originated or at least from the cradle of Africa which route it would have used. Also the modern version that remains in Africa would probably be a distant cousin in the pygmy race.

#29462 Re: Water on Mars » Glacial Cycles/Ice Caps » 2004-10-28 10:20:55

Yup a much larger moon would stabilize the orbiting planet from the wandering poles. But how large, of what mass to distance from the planet and at what rotational speed would it take? Would this also be enough to start up the magnetic fields from the internal core that is cold at this time or would we need to add a few nukes to get things started by warming the internals up.

#29463 Re: Human missions » Return to flight slipping » 2004-10-28 08:55:35

GCNRevenger you are right about the standard versions of them (atlas v, delta IV) but neither will lift the real weight that we have been talking about in the 40 to 100 ton range.
Only the versions that we have been dreaming of can. Such as when you add the SRM's that you mentioned to the delta IV.

#29464 Re: Unmanned probes » Cassini-Huygens *2* - ...more Saturn/Titan... » 2004-10-28 08:08:22

I wanted to say thanks to REB as well for the planet size comparison chart.

Of those worlds that would be teraformed that match more closely than mars for that purpose I find this chart info very inlightening. Even uranus and neptune would be very inviting if they were not so cold.

Earth                   12,756         1.0000

Saturn                120,540         1.1013
Uranus                 51,118         0.8799
Neptune               49,528         1.1408
Venus                  12,104         0.9125

As larger as saturn is but with only slightly heavy gravity but what about the atmospheric pressure is that also something that a teraformer would also be interested in.

I see that over the south pole that Nasa thinks that what shows up a white are clouds. I would be more inclined to think it is some form of snow or ice.

Can't wait for the probe to go though the atmosphere and make some measurements in December.

#29465 Re: Human missions » Earths Oceans Explored - but why not colonized » 2004-10-28 06:09:33

Both have expressed why a sea colony will not be done but when you look at the reasons for a moon or mars colony all I see from some are those same exact reasons for why we will not. I look at why we as a nation decided to expand beyound the missisippi west ward and why those people did so. It was not about science and cost was not in the picture either. It was about land, riches and of freedom of ownership a chance for a new beginning and so much more.
These are the same reason we will use to do any colonies in my mind even here within earths oceans or on our journeys to the stars setting bases as we go.

#29466 Re: Human missions » Return to flight slipping » 2004-10-28 06:00:59

What bothers most about the designs from existing delta, atlas and even sdv is that most have been on the drawing books of concepts some as much if not more than a decade. If any of them had take the steps needed to go from paper to reality we would have either probably already retired the shuttle and or reduced its flights to near zero or for special functions only. But instead all decided that with no contracts in hand to pay for it they all did nothing instead. Now closing in on being 2 plus years since a shuttle flight and still none have gone beyound paper still. When will this stupidity stop....

#29467 Re: Not So Free Chat » Presidential Elections - ...and other political discussion. » 2004-10-27 11:40:33

Between chads, missing votes by mail and the early voting electronic machine with no means to verify actual votes cast why have them vote at all. Just flip a coin heads Bush wins tails Kerry does and be done with the possibility of it ending up in court again.

#29468 Re: Science, Technology, and Astronomy » New Discoveries *3* - ...MORE deep space, extraplanetary, etc. » 2004-10-27 11:33:30

I finally had the time to load an watch the movie of the rebels on there own super highways. Quite beautiful. We will if gravity has its way on those close encounters quite possibly end up being a binary or more star system some day.

#29469 Re: Science, Technology, and Astronomy » Space Exploration of Yesteryear » 2004-10-27 11:28:07

Sealed envelope sound real military in thinking.

How surveyor landed on the moon will be the same when we finally get to go back.

That has got to be the best up close look at the lunar buggy. I do not remember such views when I watched the Nasa broadcasts so long ago.

#29470 Re: Human missions » Return to flight slipping » 2004-10-27 10:13:26

NASA Works to Lower Shuttle, ISS Flight Risk

More propaganda on why we need the shuttle for the ISS.

“If we’re going to complete the space station, we’re going to need the shuttle,” Pattison said. “It’s going to take a lot of resources.”

#29471 Re: Science, Technology, and Astronomy » New Discoveries *3* - ...MORE deep space, extraplanetary, etc. » 2004-10-27 10:08:35

Well if you thought the big bang was a bang how about a wandering star...Rebel Stars Cross Paths with Sun

Wow we now have super highways for the stars to travel from galaxy by way of gravitational (density) waves from the galatic center of the milky way. There is also to be a close call as it were a star named Gliese 710, found by Hipparcos and reported in 1999, will pass within 1 light-year of the Sun. But do not fret it will only be a mere 1.4 million years from now.

And I thought Nasa was slow... with the CEV design and such for the space exploration vision.

Edit:
yup I see it now...
Still makes you wonder though about what we really know about gravity, time and the internal driving force that makes up the fabric of space.

#29472 Re: Human missions » Kerry's position on space *2* - ...continue discussion here (for now) » 2004-10-27 06:23:07

I want to know how Kerrry thinks he can make a more balanced Nasa?
Such as in even dollars for every mission, as in the same amount as the mars probes versus the expense of a manned flight with a shuttle or anyother vehicle. What could he possibly mean?


Kerry Promises 'A More Balanced' NASA

#29473 Re: Human missions » Space tourism & - a shuttle C hotel? » 2004-10-27 05:58:24

I agree with you Bill, that we should use what we have rather than designing alabarat vehicles for space. A merging of designs would get use there quickly in addition to finishing existing work as well would be nice if cost are kept to a minimum.

edit:
Well it does appear that what I had mentioned seems to be an acurate picture of things.

SpaceDev a California company aims to resurrect a scrapped NASA project and use the technology to build a spaceship that could carry tourists into space by 2008.

http://www.floridatoday.com/!NEWSROOM/s … 7DREAM.htm


102704x34.jpg

#29474 Re: Science, Technology, and Astronomy » New Discoveries *3* - ...MORE deep space, extraplanetary, etc. » 2004-10-26 21:31:59

More on the haze of possible dark energy.
Chandra's Find of Lonely Halo Raises Questions About Dark Matter
http://chandra.harvard.edu/press/04_rel … 02604.html

And another mystery is with regards to the big bang and of time.
Scientists zero in on why time flows in one direction
http://www.eurekalert.org/pub_releases/ … 102604.php

#29475 Re: Science, Technology, and Astronomy » Cataracts & Space Exploration » 2004-10-26 21:28:27

Paving the way for pioneers Ming Zhang's cosmic radiation research takes first step in missions to Mars, moon base

With more than $1 million in NASA funding, Zhang is researching cosmic and energetic solar radiation, seeking how the two space weather components affect human beings, both as space travelers and as the end-user of satellite technology.

As American space exploration fulfills promises for a new era of long-term moon colonization and a mission to Mars, the research of Florida Institute of Technology space physicist Ming Zhang will become more important to the lives of each and every astronaut. While his research on cosmic radiation has its roots in pure science, the practical applications of what he has learned about space weather are matters of life and death.

We know that solar activity modulates cosmic rays, even to the far boundary of the solar system," Rassoul said. "Indeed, using recent observations from NASA's old work horses, the Voyager 1 and 2 spacecraft, Zhang and Ball found that the intensity of cosmic rays at ~90 AU is still strongly modulated by solar activity. What we are trying to understand is how these changes occur, and what they mean for us and our space investments.

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