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#28801 Re: Science, Technology, and Astronomy » Singing Sand Dunes » 2005-01-12 07:46:33

Don't forgot snow avalanches here on Earth make a lot of simular noises as well.

#28805 Re: Human missions » The use of Nasa resources for science - other than space exploration » 2005-01-12 07:35:20

Astronomers concerned for future of U.S. space science

Some would say that the writing is on the wall for American space science future. That it could be written off by NASA's new mandate to send humans back to the moon and on to Mars.

Linsky, one of 2,500 astronomers attending this week's national meeting of the American Astronomical Society in San Diego, echoed the worry of many of his colleagues.

"If NASA has to live with a very expensive program, then the concern is the science part will suffer, (unmanned science) missions will get canceled and things won't happen,"

This is very much the case as Nasa moves forward with the return to flight of the shuttle and the continuation of construction of the ISS as others have noted on this board.

The investment is huge with regards to the space vision of exploration that President Bush has directed NASA to do.

From 2005 to 2020, NASA estimates it will spend $271 billion. Of that total, at least $169 billion is projected to be used to fulfill the president's vision.

Living within the means of the current budget will mean as Nasa shuffles its funds to various programs possible cuts of funds, delays and out right cancellation of some as indicated in a Shifts in funding patterns could have the potential to create imbalances that could be detrimental to the field of science investigation. More discusion of this can also be found on the spacepolitics web site as well titled Tweaking the NASA budget.

#28806 Re: Science, Technology, and Astronomy » New Discoveries *4* - ...Solar System, Deep Space, cont'd » 2005-01-12 06:56:24

Interesting how the Spitzer Space telescope uses the Earth as a solar shield from the sun.

#28807 Re: Human missions » Which Would Be Cheaper To Build? - "Comet" Saturn V variant or Super Ares? » 2005-01-12 06:52:13

By RP1 boosters, you mean kerosene, alcohol and other hydrocarbon based fuels...
So I guess the question then, is how much of each fuel type per stage is then required to get the payload size we want to orbit.

#28808 Re: Not So Free Chat » Exploding ball of methane » 2005-01-12 05:36:45

You will find the answer in the original Deep impactor thread.

edit:
just for you  cool

#28809 Re: Science, Technology, and Astronomy » Deep Impact Crashing mission - Comet Tempel 1 target » 2005-01-12 05:35:23

NASA's Comet Smashing Mission Ready to Fly

If all goes well with today's launch the mission’s six-month spaceflight will send its 820-pound or 372-kilogram Deep Impactor slamming into the sunlit side of Tempel 1 at about 23,000 miles an hour (37,014 kilometers an hour). The resulting explosion would be equivalent to detonating 4.5 tons of dynamite as reported in multiple articles.

Live coverage of launch is for this afternoon EST 1/12/05.

Answer to errotist questions of exploding methane:

"A lot of people asked us why we didn't just pack the spacecraft with a whole lot of explosives," said Jay Melosh, a co-investigator in the mission from the University of Arizona. "But Impactor will hit the comet at 10 kilometers a second. That's 10 times faster than a fast rifle bullet and about 10 times larger than the equivalent mass of TNT."

The eighth of NASA's Discovery class missions, the $330-million Deep Impact spacecraft were built by Ball Aerospace and Technologies Corp. While the mission has a single, instantaneous liftoff time set for tomorrow, its actual launch window stretches through Jan. 28, with two launch opportunities daily beginning Jan. 13.

If Deep Impact launches anytime before Jan. 28, it will reach Tempel 1 on July 4 of this year, mission managers said.

#28810 Re: Human missions » ISS Woes & To-Mars » 2005-01-12 05:25:04

Ottawa will have to increase space agency budget for Mars missions: Marc Garneau

The future of the space station would be discussed at a Jan. 26 meeting in Montreal with the heads of the world's space agencies.

But he added the space station program isn't in jeopardy.

"All of the partners have agreed that they will support their undertakings until at least 2016."

#28811 Re: Space Policy » Space fairing Nations - The ever changing view » 2005-01-12 05:23:32

Ottawa will have to increase space agency budget for Mars missions: Marc Garneau


The federal government will have to increase the Canadian Space Agency's budget if it wants Canada to be part of future missions to Mars or the moon. Canada is involved in discussions with NASA to find out how it can contribute to a Mars mission. But he said the agency's annual $300-million budget would have to be increased in order to get Canada involved.

Canada's strengths are robotics, mining technology, atmospheric technology and communications.

The future of the space station would be discussed at a Jan. 26 meeting in Montreal with the heads of the world's space agencies.

But he added the space station program isn't in jeopardy.

"All of the partners have agreed that they will support their undertakings until at least 2016."

#28812 Re: Human missions » Which Would Be Cheaper To Build? - "Comet" Saturn V variant or Super Ares? » 2005-01-11 12:45:49

Well here is a little something on the solid fuels (perchlorate)contained in the SRB's and the effects it has on humans.

Report Assesses Health Implications of Perchlorate Exposure

#28814 Re: Unmanned probes » Mars Science Laboratory (MSL) - rover » 2005-01-11 09:46:42

SwRI® instrument selected for next Mars rover mission to assess radiation hazard for future astronauts

The Radiation Assessment Detector, or RAD,will be used to characterize the broad spectrum of radiation at the surface. The investigation will determine the radiation hazards faced by astronauts on Mars. The need to for an comprehesive Understanding of the space radiation environment is important to the design of shelters, habitats and spacesuits with sufficient shielding to protect astronauts.

Seven other instruments were also selected for the MSL, including a mast camera, a Mars hand lens imager and a Mars descent imager, all led by Malin Space Science Systems; a chemistry and micro-imaging sensor, led by Los Alamos; an alpha-particle-X-ray-spectrometer, led by the Max-Planck-Institute for Chemistry; an X-ray diffraction and fluorescence instrument, led by the NASA Ames Research Center; and a sample analysis instrument, led by the NASA Goddard Space Flight Center. MSL will also carry a pulsed neutron source and detector for measuring hydrogen, provided by the Russian Federal Space Agency. The project will also include a meteorological package and an ultraviolet sensor provided by the Spanish Ministry of Education and Science.

#28815 Re: Science, Technology, and Astronomy » Singularity - Black Holes, Gamma Rays, Magnetars, etc » 2005-01-11 08:59:47

So it looks like gravity wins and that in some areas of space a total collaspe would be expended at the end. Maybe we will some day witness the next big bang and birth of a new universe.

#28816 Re: Science, Technology, and Astronomy » New Discoveries *4* - ...Solar System, Deep Space, cont'd » 2005-01-11 08:57:50

It is great how all these different space telescopes, peering at the stars are increasing the knowledge of there birth formations, there life and of course there death depending on the neighborhood that they live within.

#28817 Re: Science, Technology, and Astronomy » Spitzer Space Telescope » 2005-01-11 08:55:32

Yup but it is sort of the reason why we lose sight of the discoveries that each instrument makes and ultimately why we wanted to design and build such devices for the purpose of scientific exploration. It is also one of the hottest discussions in regards to, when is a space telescope obsolete and not worthy of repair.

#28818 Re: Human missions » Long duration Human space missions - Can we survive them? » 2005-01-11 08:24:14

It really is rocket science for Nahant man

An experiment a local resident is working on may yield technology to protect astronauts from the effects of radiation during missions to Mars.

Manning, who said he believes he will see a manned-mission to Mars in his lifetime, and his colleagues at CAMMP are researching Zeolite crystals, which he said are hard like rocks and act as sponges because the crystals are full of tunnels that can store water and chemicals.

Manning said the crystals are the backbone of the chemical processes industry and are a catalyst used to convert crude oil to gasoline. The crystals are also used in a variety of household applications, including cat litter to absorb odor, water filters to remove impurities, in laundry detergents to soften hard water, and in automobile catalytic converters to reduce pollutants.

     In space, Zeolite has already been used to recover, purify and recycle air and water aboard spacecraft.

     Manning said Zeolite could help protect humans from radiation on manned trips to Mars because the crystals have already demonstrated extraordinary stability when tested as radioactive waste disposal containment materials.

     "Zeolites absorb radiation and could help mitigate the effects of cosmic and galactic radiation. It could be used on the exterior of the aircraft and the interior as well," Manning said.

     Radiation degrades food and Manning said he believes the crystals could also be used to develop food packaging for manned missions.

     "When we send people to Mars, we have to send their lunch," he chuckled.

     Manning had a hand in developing the first samples that were processed in the Zeolite Crystal Growth Furnace on the international space station and some of his experiments were part of the payload on the space shuttle Columbia (STS-107) when it disintegrated 19 miles above the earth on Feb. 1, 2003.

#28820 Re: Science, Technology, and Astronomy » New Discoveries *4* - ...Solar System, Deep Space, cont'd » 2005-01-11 07:40:19

I searched for the B Flat article a sound that a star might make but did not find it.
Here is another Rapidly rotating star dubbed 'King of Spin' by research team

New ultraviolet observations indicate a Milky Way star is spinning nearly 200 times faster than Earth's sun, the probable result of a merger between two sun-like stars whose binary orbit recently collapsed, according to a University of Colorado at Boulder astronomer.

I wonder what note that is.

#28824 Re: Science, Technology, and Astronomy » Planned Earthly or Space Telescopes - from any nation » 2005-01-11 06:00:51

Posted in another thread by Euler, Thanks :
China hopes to build world-class observatory in Tibet It would appear that it is a multi national effort to build am infrared telescope in the 10M and upward size once the location is chosen.

#28825 Re: Not So Free Chat » Neutron star material » 2005-01-11 05:45:29

Exoplanet imaged?! Granted there were only three posts in it but the initial speculation is there.

Plus this thread Major Extrasolar Planet Discovery, ...to be announced August 31!

There was also another thread for neutron star material as well Scientists Glimpse Exotic Matter In A Neutron Star, Fusion or Fision

So there are usually multiple threads going on any topics.

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