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Is there any evidence from previous missions to asteroids that said asteroids have minable minerals?

There have been no sample return missions from M-type (metallic) asteroids. Their composition has been estimated from spectroscopic data and radar albedo. The IR spectra of these asteroids was matched ...
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How is it known that asteroid 2011 UW158 has so much platinum?

With all the hype in the news this was surprisingly hard to research for specifically 2011 UW158. I never did find a source for the claim on the value, though the Slooh Community Observatory put the ...
• 7,196
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Would a sufficiently deep cavern on Mars provide habitable temperature and atmospheric pressure? Was Dick Tracy wrong?

Looks like it's not possible: To get Earth-normal pressure we need 55km https://astronomy.stackexchange.com/questions/14871/at-what-depth-on-mars-would-the-atmosphere-have-equal-pressure-of-that-on-...
• 11.2k
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Are people actually serious about mining the Moon?

the Moon is actually pretty damn small The Moon is actually pretty damn enormous. The mass of the Moon is about $7.34 \times 10^{22}$ kilograms. As a point of comparison, all the copper ever mined on ...
• 164k
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How to maintain balance and center of gravity when pushing a 100-ton piece of asteroid?

Two observations: Any reasonable way of nudging a NEO towards Earth requires doing a burn months or even years in advance. Compared to the burn time (here 1min), that means we have a lot of time to ...

Mining Helium-3 on the Moon and sending it to Earth?

On Earth, before a mineral or petroleum resource is mined/extracted, the deposit is delineated and evaluated. Briefly, the process involves sending a some geologists and some drill rigs and their ...
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Is there an elegant method to stop an asteroid's spin?

I found at least 1 paper proposing enclosing the asteroid in a bag filled with gas. https://www.researchgate.net/publication/273913280_SHEPHERD_A_Concept_for_Gentle_Asteroid_Retrieval_with_a_Gas-...
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Is there an elegant method to stop an asteroid's spin?

Look at how satellites are commonly de-spinned, and apply it on a larger scale. A commonly done method is the Yo-yo de-spin where you have long ropes with weights, and extending them slowy from the ...
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Is there any evidence from previous missions to asteroids that said asteroids have minable minerals?

Iron? Maybe, but... The first material being considered for mining (you may be surprised to find out) is water. The processes for mining water are generally well known and benign (ice has a very low ...
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• 2,291

When the moon rock heats up to 600°C, does only Helium comes out?

Lunar regolith may contain not only the lightest noble gas helium, but also hydrogen and other noble gases like neon, argon, krypton and xenon. The concentration of helium is much higher than that of ...
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Resources on 129 Antigone

tl;dr: There's a fair bit of wiggle room in density estimates, macroporosity is a thing to consider, you could still feasibly find a lot of material on this rock I first want to clarify that asteroids ...
• 347

What would be the required equipment for an astronaut to dig to the centre of Bennu?

The most obvious type of equipment required will be some form of restraint system. While, for some reason, studies of hand-shoveling a tunnel to the center of an asteroid are not appearing in my ...
• 171k