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RGClark
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RGClark
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2013-May-09,
12:06 AM
Hop_David
replied to a thread
Asteroid mining: an economic means to our future.
in
Space Exploration
From correspondence with J. S. Lewis:
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138 replies | 3773 view(s)
2013-May-09,
12:03 AM
Hop_David
replied to a thread
Asteroid mining: an economic means to our future.
in
Space Exploration
No, if space transportation were cheaper, it's possible asteroidal PGMs could realize a return on investment. And reducing the cost of space...
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138 replies | 3773 view(s)
2013-May-04,
08:48 PM
Hop_David
replied to a thread
Asteroid mining: an economic means to our future.
in
Space Exploration
There are meteorites with PGM concentrations much higher than high grade ore from earth's platinum mines. Another problem with mines is possible...
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138 replies | 3773 view(s)
2013-May-04,
08:42 PM
Hop_David
replied to a thread
Asteroid mining: an economic means to our future.
in
Space Exploration
From Space Review's To catch a planetoid:
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138 replies | 3773 view(s)
2013-Apr-27,
11:09 PM
Hop_David
replied to a thread
Asteroid mining: an economic means to our future.
in
Space Exploration
We agree on something! Gotta mark this day on my calendar.
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138 replies | 3773 view(s)
2013-Apr-25,
03:47 PM
Hop_David
replied to a thread
Straightening out misconceptions about space elevators.
in
Space Exploration
The fact that stationary orbit is so low is worth thinking about. For planets and large moons getting an elevator past stationary orbit is a major...
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63 replies | 2090 view(s)
2013-Apr-25,
03:03 PM
Hop_David
replied to a thread
Asteroid mining: an economic means to our future.
in
Space Exploration
Since you evidently haven't heard of it I suggest you Google Chelyabinsk.
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138 replies | 3773 view(s)
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