What would the most cost-effective way of getting the metals down to Earth?Can that question be answered yet?
What would the most cost-effective way of getting the metals down to Earth?
I think that everyone would agree that, once refined, getting the processed ore back to Earth would be fairly trivial (in the sense that the ore would be so valuable that there would be many ways to return the ore to Earth on an economical basis).
Here's one article that I find interesting.http://nextbigfuture.com/2012/04/planetary-resources-could-use-passively.htmlIs the information there accurate?
Quote from: Wyvern on 04/26/2012 10:58 pmHere's one article that I find interesting.http://nextbigfuture.com/2012/04/planetary-resources-could-use-passively.htmlIs the information there accurate?No. The qualified customer with billions of dollars is not named. Therefore, the article is no valid than if I claimed that they are going to make trillions because aliens will buy asteroids from them.BTW, a better way to image GEO satellites is to send an Arkryd satellite to GEO and let it float around. Please give me a billion dollars to do so.
The customers - 1. Disrupt the satellite imaging market. That market is already over $1.5 billion per year. Governments are the main buyers of satellite imaging. A lot of small scopes will provide more timely images.
Quote from: Diagoras on 04/26/2012 02:52 pmQuote from: QuantumG on 04/26/2012 06:40 amApparently Neil deGrasse Tyson will be talking about Planetary Resources on The Daily Show. For some reason I doubt he'll even mention how much all this proves wrong his claims that only governments do exploration.Where'd you hear about this? I Googled for a link, but couldn't find one.It was on yesterday in the first segment of the show.
Quote from: QuantumG on 04/26/2012 06:40 amApparently Neil deGrasse Tyson will be talking about Planetary Resources on The Daily Show. For some reason I doubt he'll even mention how much all this proves wrong his claims that only governments do exploration.Where'd you hear about this? I Googled for a link, but couldn't find one.
Apparently Neil deGrasse Tyson will be talking about Planetary Resources on The Daily Show. For some reason I doubt he'll even mention how much all this proves wrong his claims that only governments do exploration.
Here's a thought for the thread, as it 'could' be considered related:What are the chances that something could exist in an asteroid that may not be desireable to have here on the Earth (thinking of the movie Andromeda Strain).Obviously if they perform some sort of high temperature extraction process, that 'could' be effective in killing any organisms that might be tagging along. And for that matter, anything that tags along FROM the Earth and gets irradiated, and then returns in some mutated form, could pose a hazard.Again, just food for thought, nothing that would require serious consideration at this stage.
Quote from: robertross on 04/27/2012 01:50 amHere's a thought for the thread, as it 'could' be considered related:What are the chances that something could exist in an asteroid that may not be desireable to have here on the Earth (thinking of the movie Andromeda Strain).Obviously if they perform some sort of high temperature extraction process, that 'could' be effective in killing any organisms that might be tagging along. And for that matter, anything that tags along FROM the Earth and gets irradiated, and then returns in some mutated form, could pose a hazard.Again, just food for thought, nothing that would require serious consideration at this stage.Even if the intention is to heat all material gathered to a very high temperature, it's likely that the spacecraft will accumulate bits of asteroidal dust that have not been heated.
Desalination is pretty widely used in the Middle East and North Africa.
Quote from: Wyvern on 04/26/2012 10:58 pmWhat would the most cost-effective way of getting the metals down to Earth?An Ablative Ceramic Heat Shield made from Asteroid materials should be no problem compared to the actual mining of an Asteroid.
Even if the asteroid was entirely "dry", you could still send powdered asteroid through the focus of a solar furnace and use it as reaction mass. Not terribly efficient due to the high molecular weight of the vapour plume, but solar energy is effectively free, and the reaction mass is otherwise almost worthless. The big improvement in transit time over SEP would be worth it, in my opinion.
Quote from: Danderman on 04/26/2012 06:40 pmIf you are going to engage in conspiracy theories, you might want to consider that the swarm of small telescopes to be launched into orbit might instead be a 24 hour monitoring system for Homeland Security to watch you day and night. Would the swarm have enough resolution to differentiate which finger I just went outside and raised? Or do I need to wait ten years and go outside and try again?
If you are going to engage in conspiracy theories, you might want to consider that the swarm of small telescopes to be launched into orbit might instead be a 24 hour monitoring system for Homeland Security to watch you day and night.
Planetary Resources will be putting up hundreds of inexpensive space telescopes with 9 inch mirrors, 2 meter resolution and sub-arcsecond pointing. The passive constellation method for boosting image resolution could achieve centimeter resolution.
High-Resolution Optical DataSales of commercial data reached $1.3 billion in 2010 and continue to grow strongly. The U.S. government remains by far the largest consumer of commercial EO data, primarily for defense purposes through the National Geospatial-Intelligence Agency (NGA). Following consolidation in the U.S. industry, the industry has grown strongly—by a 23 percent compound annual growth rate during the last five years—largely in response to growing requirements for defense applications. Furthermore, the private sector is showing signs of increased development, particularly for location-based applications.In total, 83 percent of all commercial data sales are from optical solutions. The remaining 17 percent come from synthetic aperture radar (SAR) data solutions. Somewhat unsurprisingly, sub-1-meter-resolution datasets represent the bulk of data sales, such as data provided by U.S.-based operators DigitalGlobe and GeoEye. Because the U.S. Department of Defense is the key customer for image intelligence applications, customers show a clear preference for high resolutions and higher accuracy data sources.
Quote from: Moe Grills on 04/25/2012 08:44 pm You need return samples to confirm or refute the interpretations of the spectra of celestial bodies.EXAMPLE; It's a FACT that the flyby of the asteroid Lutetia by Rosettadisproved the interpretations of telescopic spectra of that body.--whistles innocently--
You need return samples to confirm or refute the interpretations of the spectra of celestial bodies.EXAMPLE; It's a FACT that the flyby of the asteroid Lutetia by Rosettadisproved the interpretations of telescopic spectra of that body.