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Author Topic: Deep Space and Interplanetary Exploration - The Universe is Timeless  (Read 71811 times)

Maingunnery

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1440 on: 02 September 2019, 14:32:55 »
Right, piracy it is, then!  >:D
Or give them a push down "or by their return to the Earth."
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ANS Kamas P81

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1441 on: 02 September 2019, 16:56:25 »
I was only making a joke about the antimatter asymmetry problem.  And no, positrons and antiprotons both have to be antimatter, because assuming antiprotons are regular matter means 'regular' protons are antimatter particles - and the simple fact that more complex atoms than hydrogen exist says otherwise.  Plus that means all 'matter' particles, with regular negatively-charged electrons and what we call antiprotons also with a negative charge, would carry a heavy net electric charge rather than be neutral.

Thunderbolt

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1442 on: 02 September 2019, 23:26:41 »
Clarifying for accuracy and any confusion caused, matter antimatter balance depends on raw numbers, back in the hot high energy early universe, when every particle was relativistic

So we need to focus on numbers, early on, not relic mass-energy in the current cold cosmos

Even when matter and antimatter annihilate, two particles in yield two photons (or two neutrinos) out -- the number of quanta in existence stays the same

Turns out there are about a billion CMB photons per baryon (H atom) out there, and almost as many CNB neutrinos

And if DM is also a matter antimatter annihilation end product, then there are zillions more of those as well

So when you look at population numbers, back in the hot high energy early universe to boot, the matter antimatter balance was even Steven to one part in billions and billions

ANS Kamas P81

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1443 on: 12 September 2019, 03:55:24 »
https://www.cnn.com/2019/09/11/world/water-atmosphere-exoplanet-scn/index.html

Habitable zone and water vapor in the atmosphere.  One step closer...

Daryk

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1444 on: 12 September 2019, 04:44:00 »
Fantastic news!  :thumbsup:

Ogra_Chief

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1445 on: 12 September 2019, 13:05:24 »
The Aliens continue to probe our System defenses: https://www.thesun.co.uk/tech/9912329/interstellar-space-object-solar-system/

Dubbed "C/2019 Q4", the high-speed body appears to be on a path originating from another star system that will see it fire past Mars in October...

At least we know it's coming.

Added, Scott Manley touched on both: https://www.youtube.com/watch?v=OG38Ei8R_08


Edited to add Scott Manley commentary.
« Last Edit: 12 September 2019, 13:27:06 by Ogra_Chief »
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worktroll

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1446 on: 12 September 2019, 13:06:26 »
Quote
The Ramans always do everything in threes
* No, FASA wasn't big on errata - ColBosch
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rebs

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1447 on: 12 September 2019, 19:42:51 »
https://www.cnn.com/2019/09/11/world/water-atmosphere-exoplanet-scn/index.html

Habitable zone and water vapor in the atmosphere.  One step closer...

It's a matter of time.  We're terribly arrogant to think we are unique.

Ogra_Chief

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1448 on: 12 September 2019, 19:52:02 »
And, yet we appear to be. A lot of dark, and no flashing, "Join the Galactic Community here. New members accepted on probationary terms."
BattleTech @CGL_BattleTech · Jul 17
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Wrangler

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1449 on: 12 September 2019, 19:59:41 »
Bigelow Aerospace is trying again to show it's inflatable habitats would be cost effective alternative to be used as the Gateway spacestation.

I've followed this for a while, it seem the company been struggling to get things going despite the success of the BEAM attached to the ISS.

Do you guys know about this thing?  Do you think it would be feasible? I think there some stuff they have to explain like how they plan assemble stuff that's inside the inflatable station how it's suppose to shield the crew from radiation.

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worktroll

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1450 on: 12 September 2019, 20:45:36 »
I believe you could poke a pencil through most of the hull of the ISS as it is; a stanley knife anyway. Short form, weight is critical, so they don't use "hull armour" to protect - it's things called "Whipple shields", which are pretty much spaced armour, except it's spaced tinfoil. The micrometeors vaporise away from the main hull, and I assume it could be easily replaced by more tinfoil.

Pressure sealing also comes from liners & layers, typically special non-flammable plastics I believe. And radiation shielding will probably come from major structural elements - like the "core can" in the illustration. One end will have a "rac cellar" built in. Right behind the batteries would be good, particularly if you can point that end at the Sun.

So there's nothing in orbit which can withstand machine gun fire, basically, let alone a baseball at escape velocities.

Given that, and given more actual structure than shown there (eg. multiple redundant layers), I'm quite comfortable with the theoretical use of inflatables. Would I want to be the first person to stay in one long-term? Ummm ... but I'd give it a go for the chance to be in orbit ;)
* No, FASA wasn't big on errata - ColBosch
* The Housebook series is from the 80's and is the foundation of Btech, the 80's heart wrapped in heavy metal that beats to this day - Sigma
* To sum it up: FASAnomics: By Cthulhu, for Cthulhu - Moonsword
* Because Battletech is a conspiracy by Habsburg & Bourbon pretenders - MadCapellan
* The Hellbringer is cool, either way. It's not cool because it's bad, it's cool because it's bad with balls - Nightsky
* It was a glorious time for people who felt that we didn't have enough Marauder variants - HABeas2, re "Empires Aflame"

Thunderbolt

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1451 on: 12 September 2019, 22:23:23 »
The Aliens continue to probe our System defenses: https://www.thesun.co.uk/tech/9912329/interstellar-space-object-solar-system/

Dubbed "C/2019 Q4", the high-speed body appears to be on a path originating from another star system that will see it fire past Mars in October...

At least we know it's coming.

Added, Scott Manley touched on both: https://www.youtube.com/watch?v=OG38Ei8R_08


Edited to add Scott Manley commentary.
how many Oumuamua's are out there? 

Thunderbolt

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1452 on: 12 September 2019, 22:28:08 »
And, yet we appear to be. A lot of dark, and no flashing, "Join the Galactic Community here. New members accepted on probationary terms."
uncritically accepting your argument, means no friendlies

Weirdo

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1453 on: 12 September 2019, 23:59:17 »
Maybe not 'no friendlies' so much as 'not morons'. Much as it is the height of arrogance to assume we are unique, it seems similarly arrogant to assume that in a galactic community we'd be the most aggressive and otherwise cranky race out there. A galaxy even sparsely populated by intelligent life is statistically going to include a fair share of very nasty folks. It makes sense for an established interstellar community to monitor and vet new entries before rolling out the welcome sequence of prime numbers...and have you met us? *I* certainly wouldn't let us into the neighborhood if I had any choice in the matter.
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rebs

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1454 on: 13 September 2019, 04:17:00 »
Its possible that entire galactic-scale wars have been fought around us while we huddled right here on Earth.  A galactic community has possibly seen what happens when an aggresive and trigger happy race takes to the stars, and knows the hard work to rein such a race of beings in. 

Any observers will note that we can scarcely get along with members of our own race on different parts of our home planet.  We should tread cautiously as we explore space.  We should also take attempts at world peace more seriously.  Yeah, yeah, yeah, I'm a bleeding heart hippie, but a more unified face on our no doubt unending factional bickering would go along way to help us colonize our solar system, and also in the case of a needed defense.  We may be a young race and behind the proverbial eightball tech-wise, but we can at least go down swinging in unison. 

worktroll

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1455 on: 13 September 2019, 04:27:44 »
Its possible that entire galactic-scale wars have been fought around us while we huddled right here on Earth.  A galactic community has possibly seen what happens when an aggresive and trigger happy race takes to the stars, and knows the hard work to rein such a race of beings in. 

I think it's entirely reasonable that we'd see evidence of "war in heaven". Clusters of novae, unusual radiation coming from nebula, spikes of radiation at the matter-antimatter annihilation frequency, etc.

It's also entirely possible that we have seen such evidence already, and not understood it. Maybe gamma ray bursters are actually what happens when you use a Franistab Inverter with hostile intent. And of course, memetic warfare may be far more lethal, and less detectable at a distance.
* No, FASA wasn't big on errata - ColBosch
* The Housebook series is from the 80's and is the foundation of Btech, the 80's heart wrapped in heavy metal that beats to this day - Sigma
* To sum it up: FASAnomics: By Cthulhu, for Cthulhu - Moonsword
* Because Battletech is a conspiracy by Habsburg & Bourbon pretenders - MadCapellan
* The Hellbringer is cool, either way. It's not cool because it's bad, it's cool because it's bad with balls - Nightsky
* It was a glorious time for people who felt that we didn't have enough Marauder variants - HABeas2, re "Empires Aflame"

hoosierhick

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1456 on: 13 September 2019, 09:02:02 »
Bigelow Aerospace is trying again to show it's inflatable habitats would be cost effective alternative to be used as the Gateway spacestation.

I've followed this for a while, it seem the company been struggling to get things going despite the success of the BEAM attached to the ISS.

Do you guys know about this thing?  Do you think it would be feasible? I think there some stuff they have to explain like how they plan assemble stuff that's inside the inflatable station how it's suppose to shield the crew from radiation.



I have a friend that worked on BEAM.  I'll shoot him an email and ask.

Wrangler

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1457 on: 13 September 2019, 09:46:43 »
I have a friend that worked on BEAM.  I'll shoot him an email and ask.
Cool!  Hope things are looking good for the company.  I've been worried they were on verge shutting down.

New Item
Looks like Earth may have had a 2nd Interstellar visitor, a interstellar comet!

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Thunderbolt

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1458 on: 13 September 2019, 11:03:39 »
I think it's entirely reasonable that we'd see evidence of "war in heaven". Clusters of novae, unusual radiation coming from nebula, spikes of radiation at the matter-antimatter annihilation frequency, etc.

It's also entirely possible that we have seen such evidence already, and not understood it. Maybe gamma ray bursters are actually what happens when you use a Franistab Inverter with hostile intent. And of course, memetic warfare may be far more lethal, and less detectable at a distance.
easier to snipe in space than in a moonless starlit forest?

You can put a flash suppresser on any barrel?

worktroll

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1459 on: 13 September 2019, 14:18:59 »
If we're just talking war on a BT scale, no. But if we're talking proper Kardashev Type II civilisations at war ...
* No, FASA wasn't big on errata - ColBosch
* The Housebook series is from the 80's and is the foundation of Btech, the 80's heart wrapped in heavy metal that beats to this day - Sigma
* To sum it up: FASAnomics: By Cthulhu, for Cthulhu - Moonsword
* Because Battletech is a conspiracy by Habsburg & Bourbon pretenders - MadCapellan
* The Hellbringer is cool, either way. It's not cool because it's bad, it's cool because it's bad with balls - Nightsky
* It was a glorious time for people who felt that we didn't have enough Marauder variants - HABeas2, re "Empires Aflame"

Maingunnery

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1460 on: 13 September 2019, 15:09:54 »

What is possible is that the galaxy is full with alien life, but they have FTL communication but no FTL travel.
So the biggest organization is the Milky Way Chan board.
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Daryk

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1461 on: 13 September 2019, 16:19:20 »
If it's ANYTHING like that, it's a VERY GOOD THING they don't have FTL travel...

hoosierhick

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1462 on: 13 September 2019, 16:43:21 »
Cool!  Hope things are looking good for the company.  I've been worried they were on verge shutting down.

New Item
Looks like Earth may have had a 2nd Interstellar visitor, a interstellar comet!



He actually left Bigelow before BEAM was launched, but some of the hardware he designed is on it.  It wouldn't surprise me that he's out of date on things, unless he's still been talking to folks there.  He did tell me one time what the "fabric" was made up from, but I don't remember what exactly it was.

Thunderbolt

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1463 on: 13 September 2019, 23:44:43 »
Oumuamua's prove that natural inert space rock & ice can complete interstellar journeys

So, since artificial technology can always do better / faster than nature, interstellar journeys are proven possible

https://en.wikipedia.org/wiki/Intergalactic_star

Intergalactic stars prove that inert space plasma can complete intergalactic journeys

Similar argument, intergalactic journeys are proven possible (in principle)

worktroll

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1464 on: 14 September 2019, 01:37:47 »
Bats, which are mammals, fly, and exist. Therefore theoretically humans, which are also mammals, could fly!

Sorry, that's pretty nonsensical stuff. We know inert material can fall freely through interstellar, and probably intergalactic, space.  Proves nothing beyond "stuff is."

FTL is theoretically possible too - a number of ways that Einstein's maths can be circumvented. Practical FTL now ...

I'd just stick to "The universe is not only stranger than we imagine, but stranger than we can imagine." In a truly infinite universe, not only are all things possible, they're mandatory[i/].
* No, FASA wasn't big on errata - ColBosch
* The Housebook series is from the 80's and is the foundation of Btech, the 80's heart wrapped in heavy metal that beats to this day - Sigma
* To sum it up: FASAnomics: By Cthulhu, for Cthulhu - Moonsword
* Because Battletech is a conspiracy by Habsburg & Bourbon pretenders - MadCapellan
* The Hellbringer is cool, either way. It's not cool because it's bad, it's cool because it's bad with balls - Nightsky
* It was a glorious time for people who felt that we didn't have enough Marauder variants - HABeas2, re "Empires Aflame"

Thunderbolt

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1465 on: 14 September 2019, 04:59:03 »
Bats, which are mammals, fly, and exist. Therefore theoretically humans, which are also mammals, could fly!
ever been on an airplane?

Maybe one that flew faster than any bat, eagle, or peregrine falcon?

Your car outpaces a cheetah

And those are all alive -- Oumuamua, Borisov, and IG stars haven't even gotten that far

Interstellar & Intergalactic journeys have been completed, by inert non-living non-sentient matter

Would be nice to think humans could (in principle) do better?

Wrangler

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1466 on: 14 September 2019, 10:54:14 »
Not to wander into the realm of science-fiction.  I read in a novel, where they characters mind had to be uploaded for the journey and his body re-grown as AI intelligence governing humanity/other species that were given human similar intelligence was suppressed until rest humanity had evolved more.

Given how nasty Cosmic Radiation and lordy problem stuff we don't know about yet out there.  It sounds like this would be one few thing to allow life forms to survive interstellar journey.
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Thunderbolt

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1467 on: 14 September 2019, 12:57:15 »
https://www.dailymail.co.uk/sciencetech/article-7460887/Black-just-got-blacker-Darkest-material-created-10-times-darker-else.html

Absorbs 99.96% of incident light, even complex objects painted with the material have no humanly perceptible shadowing / depth / relief, psychologically seeming to be perfectly flat from any angle, even from merely centimeters

Ogra_Chief

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1468 on: 14 September 2019, 13:39:25 »
https://www.dailymail.co.uk/sciencetech/article-7460887/Black-just-got-blacker-Darkest-material-created-10-times-darker-else.html

Absorbs 99.96% of incident light, even complex objects painted with the material have no humanly perceptible shadowing / depth / relief, psychologically seeming to be perfectly flat from any angle, even from merely centimeters

The applications profound, but ultimately someone will use the material to coat a coworkers' office. Intelligence billions of years in the making has to be used for something, right?
BattleTech @CGL_BattleTech · Jul 17
Harmony Gold no longer has any say in our decisions, however, the original mechs have been redesigned enough to not cause problems.

hoosierhick

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Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #1469 on: 15 September 2019, 12:36:40 »
Cool!  Hope things are looking good for the company.  I've been worried they were on verge shutting down.


Well, I head back from my friend.  He said that he really couldn't talk much about the shielding on the Bigelow modules, but there are some articles on space.com that talks about them.  Sorry Wrangler.