Recent comments in /f/space

dern_the_hermit t1_j2f0bys wrote

Reply to comment by Grimsage777 in Israeli pens plan for belt of solar panels on moon to power oxygen production. With NASA mulling nuclear reactor to generate energy, Ben Gurion University expert says his idea would produce same amount of power with six times less mass. by Zee2A

Unless the dust is disturbed by human or machine activity it'll just stay where it currently is. And if it is disturbed its trajectory tends to follow a simple up-and-down arc. It doesn't float in the air like it does here on Earth, for the very obvious reason.

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hyper24x7 t1_j2f02bq wrote

Reply to Israeli pens plan for belt of solar panels on moon to power oxygen production. With NASA mulling nuclear reactor to generate energy, Ben Gurion University expert says his idea would produce same amount of power with six times less mass. by Zee2A

Both - panels could get hit by meteorites of all sizes. The nuclear reactor could help charge batteries. having more than once source of power (no matter how long it takes to get up there) is better than just having one.

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dern_the_hermit t1_j2ezy61 wrote

Reply to comment by _off_piste_ in Israeli pens plan for belt of solar panels on moon to power oxygen production. With NASA mulling nuclear reactor to generate energy, Ben Gurion University expert says his idea would produce same amount of power with six times less mass. by Zee2A

Moon dust won't linger off the ground like it would in an atmosphere. You kick dust up and it falls right back down.

Which isn't to suggest it's not a concern, just that there's not going to be big billowing clouds that linger for any appreciable amount of time.

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dern_the_hermit t1_j2ezk8z wrote

Reply to comment by BavarianBanshee in Israeli pens plan for belt of solar panels on moon to power oxygen production. With NASA mulling nuclear reactor to generate energy, Ben Gurion University expert says his idea would produce same amount of power with six times less mass. by Zee2A

Yeah, even Chernobyl needed them to deliberately shut off safety equipment and run the reactor in an atypical experimental manner before experiencing a catastrophe.

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radioli t1_j2etrey wrote

Reply to comment by rshorning in China hoping rocket that can send people to the moon will be ready to launch by 2027 by Saltedline

What a mis-read. There is NO HATE, just frustration.

  1. In my past comments in this sub, I never said any word like "China (esp. in space industry) is perfect". They are just a fast but decent group of people catching up.
  2. I mentioned CCTV regardless of its propaganda, just to point out that the manned lunar program and moon base plan have been MADE PUBLIC FOR YEARS. And they have been hot topics in the science and tech circle as more details are disclosed. It is not anything "secret" like redditors always brag about. And anyone can find and follow TONS of Chinese sources about what the Chinese did and are going to do, from their gov, industry, academic institutions, space and tech enthusiasts and even social media, and check them out, IF ANYONE READS CHINESE. There is no need to hide or fake such huge space programs now. The more you read, the deeper you know, and the harder it is to fake. It is the lazy, arrogant and lying western media that make everyone blind from what is really happening in other countries. Political lens makes people stupid.
  3. It is true that in the coming decade, for China or other space power, getting human to stay on the moon for half a month is an enormously difficult goal. I didn't expect beyond that. After all, it is planned to be "short-term" or "mid-term" mission at best by 2035, 12 YEARS LATER FROM NOW. As planned their core base in the lunar south pole will come earlier than the manned landing (roughly 2030). It is way more about a series of plans than a cold-war style one-time show-off. Today's Chinese are not Soviet Russians, show-offs cannot please or feed these realistic people. 2030 is not so far away, we will see.
  4. So far China had never lost (or even significantly injured) any astronaut in her space programs. For the public this has become a norm. Space is always highly dangerous, but gov and the space industry has to manage risks, either high up to the space or down to the earth. I don't know where you could get an impression that China or any major space power could (or even need to) risk any astronaut's life just to ram for a cold-war style trophy.
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BavarianBanshee t1_j2etk7k wrote

Reply to comment by Rare-Joke in Israeli pens plan for belt of solar panels on moon to power oxygen production. With NASA mulling nuclear reactor to generate energy, Ben Gurion University expert says his idea would produce same amount of power with six times less mass. by Zee2A

You just do it the same way you would service solar panels on the moon.

You bring the stuff with you that you need, and have highly trained personnel do it.

And while there's never a 0% chance of a meltdown, with modern reactor designs, they can make it pretty close to 0%. People are quick to think of events like Chernobyl when talking about nuclear power, but that was a very old type of reactor being used in the worst way possible. You can bet people running a much better designed reactor on the moon are gonna take it a lot more seriously.

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BavarianBanshee t1_j2esjed wrote

Reply to Israeli pens plan for belt of solar panels on moon to power oxygen production. With NASA mulling nuclear reactor to generate energy, Ben Gurion University expert says his idea would produce same amount of power with six times less mass. by Zee2A

Personally, I'm not buying it, but I'm not an expert. It just seems to me that there is no way in hell they would have six times less mass when making a ring of solar panels around something as large as the moon. It may not be as big as the earth, but that fucker is big; that's gonna take a lot of solar panels.

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Spank86 t1_j2es4o8 wrote

Reply to comment by IglooCrusade in Want to Build Structures on the Moon? Just Blast the Regolith With Microwaves - Microwaves are useful for more than just heating up leftovers. They can also make landing pads on other worlds - Universe Today by vibrunazo

30 seconds.

I've shoved a stick in the bit that makes mine think the doors closed and ive got it on the windowsill turned on, juat got to line the bugger up. Eyeballing it should be fine, the moons pretty big.

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_off_piste_ t1_j2erqax wrote

Reply to comment by forestapee in Israeli pens plan for belt of solar panels on moon to power oxygen production. With NASA mulling nuclear reactor to generate energy, Ben Gurion University expert says his idea would produce same amount of power with six times less mass. by Zee2A

What about the abrasive nature of moon dust? I know there’s no wind like on Earth and Mars but it seems like travel to install and other operations will have an effect on how much is in the atmosphere.

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david4069 t1_j2eqdm9 wrote

Reply to comment by VikingBorealis in Historic first launch of Chinese private methane-fueled rocket ends in failure by returnofjuju

>A launch is never a failure, only a failure to launch, especially on new hardware.

An unsuccessful launch would absolutely be a failure if you don't learn something from it.

I get what you're trying to say, but I think if you worded it a bit differently, more people would have been able to get it too.

I don't have enough info to comment on the other statement.

Edit: Just realized this thread was from 3 days ago.

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gerkletoss t1_j2epuhd wrote

Reply to comment by Rare-Joke in Israeli pens plan for belt of solar panels on moon to power oxygen production. With NASA mulling nuclear reactor to generate energy, Ben Gurion University expert says his idea would produce same amount of power with six times less mass. by Zee2A

The astronauts are near the reactor. They can potentially service it in shirt sleeves.

A meltdown is nearly impossible with current designs, but it would definitely halt ISRU operations until a new reactor could be sent.

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