s1ngular1ty2

s1ngular1ty2 t1_ixjo1r9 wrote

Yeah and when they landed they probably killed anything in close proximity and also probably altered global temperatures. Do you think that a massive ice rock is any different from a normal rock when traveling at thousands of miles per hour? It goes through the atmosphere in a couple of seconds. It can't melt fast enough. It is just like a normal rock hitting the Earth.

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s1ngular1ty2 t1_ixf0te8 wrote

If all the super wealthy billionaires interested in space gave up all their money for a Mars landing, it wouldn't even be near enough. Landing on Mars with people will be ungodly expensive. It will take a major country or several to pull it off. Which is why it is likely to never happen with people. We can send robots pretty easily but sending people is entirely different and way more challenging.

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s1ngular1ty2 t1_ixezqlu wrote

That's not true. A human can do lots of things a robot can't. Although it probably won't happen in our lifetime if ever. You are correct in saying it is probably not worth the cost. We could send a dozen rovers for the same cost. They aren't as good as a human, but they are still worth sending. I personally feel sending people is far too risky and costly. We can just send more advanced robots as they are invented. Eventually they could be as capable as a human. They are definitely more durable and can stay far longer on the surface. It would cost too much to keep people for any long period of time on the surface so even if they are better at tasks they have less staying power than a fleet of robots.

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s1ngular1ty2 t1_iwsi71l wrote

The article is bad since the most commonly accepted description of dark matter is some exotic particle we have not yet discovered. The article says dark matter isn't particles. So how can it be correct? Researchers across the world are actively searching for dark matter particles because most of them believe it is a particle...

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s1ngular1ty2 t1_iwsh4qg wrote

Spin doesn't mean it is actually spinning. It is a way to describe how it interacts with a measurement machine when the spin is measured. Spin is how the particle is deflected in the presence of a magnetic field. The particle is not spinning like a top. It's confusing I know.

https://www.scientificamerican.com/article/what-exactly-is-the-spin/

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s1ngular1ty2 t1_iwsdah9 wrote

The leading theories for what it is are mostly particle based theories. That was my point. I understand it exhibits gravity. That is the sole reason we know it exists.

There are custom made particle detectors all over the Earth trying to find dark matter every second of every day. They are giant contraptions which are almost solely searching for dark matter by many different means. It is one of the most active fields of study right now because understanding what dark matter is, is super important and will probably win you a nobel prize if you figure it out.

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s1ngular1ty2 t1_iws95xf wrote

We are pretty sure dark matter is matter, which is why it's called dark matter not dark information. We have many observations that suggest it is a particle of some kind. We have decades of discoveries that prove dark matter is real. Just because we haven't detected the particles themselves yet doesn't mean it isn't still matter. It can be weakly interacting matter we can not detect because it barely interacts with other matter. It can be exotic large mass particles we can not produce in our colliders because they are limited to lower energies and lower masses. There are many reasons why we may not be able to detect it with any means we have and yet it still exists and is still matter.

This article is laughable at best.

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