Author Topic: Deep Space and Interplanetary Exploration - The Universe is Timeless  (Read 178673 times)

kato

  • Captain
  • *
  • Posts: 2417
So, seems Tabby's Star is dimming again.  Any guessses what it is the aliens are building that's causing this?
Most interesting guess i've seen for the dimming is that the star consumed a gas giant on an eccentric orbit (similar to WASP-12), and that the gas giant's former moons now act as humongous periodic comets with truly gigantic outgassing covering like half the star when viewed from our direction.

Lazarus Jaguar

  • Captain
  • *
  • Posts: 2823
  • Stop! Hammer Time!
BORING!

come on, why can't the universe be more exciting than that!/

(this post brought to yo uby Captain Morgan)
You know, I love that every day in Japan is like a very peaceful game of RIFTs. - MadCapellan

around here, April Fools day is Serious! Business!

Weirdo

  • Painter of Borth the Magic Puma
  • Catalyst Demo Team
  • Major General
  • *
  • Posts: 40810
  • We can do it. We have to.
    • Christina Dickinson Writes
If you think an entire gas giant getting consumed in one go is boring, I don't want to be in the same globular cluster as your idea of exciting...
My wife writes books
"Thanks to Megamek, I can finally play BattleTech the way it was meant to be played--pantsless!"   -Neko Bijin
"...finally, giant space panties don't seem so strange." - Whistler
"Damn you, Weirdo... Damn you for being right!" - Paul
"...I was this many years old when I found out that licking a touchscreen in excitement is a bad idea." - JadeHellbringer
"We are the tribal elders. Weirdo is the mushroom specialist." - Worktroll

marauder648

  • Lieutenant Colonel
  • *
  • Posts: 8157
    • Project Zhukov Fan AU TRO's and PDFs
You want exciting? How about a supernova

http://imgur.com/gallery/3nfsO
Ghost Bears: Cute and cuddly. Until you remember its a BLOODY BEAR!

Project Zhukov Fan AU TRO's and PDFs - https://thezhukovau.wordpress.com/

Kit deSummersville

  • Precentor of Lies
  • Freelance Writer
  • Lieutenant Colonel
  • *
  • Posts: 10401
  • The epicness continues!
    • Insights and Complaints on Twitter
So, seems Tabby's Star is dimming again.  Any guessses what it is the aliens are building that's causing this?

They're building a wall to keep the humans out.
Looking for an official answer? Check the Catalyst Interaction Forums.

Freelancer for hire, not an official CGL or IMR representative.

Everyone else's job is easy, so tell them how to do it, everyone loves that!

Millard Fillmore's favorite BattleTech writer.

Sharpnel

  • Colonel
  • *
  • Posts: 13414
You want exciting? How about a supernova

http://imgur.com/gallery/3nfsO
Very cool imagery. I'm glad my death would be instantaneous in that scenario.
Consigliere Trygg Bender, CRD-3BL Crusader, The Blazer Mafia
Takehiro 'Taco' Uchimiya, SHD-2H Shadow Hawk 'Taco', Crimson Oasis Trading Company

"Of what use is a dream, if not a blueprint for courageous action" -Adam West
As I get older, I realize that I'm not as good as I once was.
"Life is too short to be living someone else's dream" - Hugh Hefner

Wrangler

  • Colonel
  • *
  • Posts: 24972
  • Dang it!
    • Battletech Fanon Wiki
Looks like a new space launch vehicle like the Virgin Knight-series planes is coming close to it's maiden flight.

Behold, the Stratolaunch!



This is a Frankenstein of two 747 aircraft merged into one beasty of a plane.  it's suppose to fly high into the atmosphere and then air launch/drop they payload rocket to save money on launches.

I do wonder though. Given the cost savings projected by SpaceX's efforts of recovering it's launchers. That Stratolaunch's cost savings will be lose eventually when 2nd stages are recovered by SpaceX if they stick with their plans.
"Men, fetch the Urbanmechs.  We have an interrogation to attend to." - jklantern
"How do you defeat a Dragau? Shoot the damn thing. Lots." - Jellico 
"No, it's a "Most Awesome Blues Brothers scene Reenactment EVER" waiting to happen." VotW Destrier - Weirdo  
"It's 200 LY to Sian, we got a full load of shells, a half a platoon of Grenadiers, it's exploding outside, and we're wearing flak jackets." VoTW Destrier - Misterpants
-Editor on Battletech Fanon Wiki

Weirdo

  • Painter of Borth the Magic Puma
  • Catalyst Demo Team
  • Major General
  • *
  • Posts: 40810
  • We can do it. We have to.
    • Christina Dickinson Writes
Even with SpaceX recovering their rockets, I think it'll be a bit before their savings start competing with an aircraft that merely needs to land, gas up, and is ready to go again. Virgin's window of opportunity may not be infinite, but it's still a period they can make money in, and probably advance aviation technology in cool ways while they're at it.

(I'm aware that it's not actually that simple, but you get my drift.)
My wife writes books
"Thanks to Megamek, I can finally play BattleTech the way it was meant to be played--pantsless!"   -Neko Bijin
"...finally, giant space panties don't seem so strange." - Whistler
"Damn you, Weirdo... Damn you for being right!" - Paul
"...I was this many years old when I found out that licking a touchscreen in excitement is a bad idea." - JadeHellbringer
"We are the tribal elders. Weirdo is the mushroom specialist." - Worktroll

Natasha Kerensky

  • Major
  • *
  • Posts: 3448
  • Queen of Spades, First Lady of Death, Black Widow
This is a Frankenstein of two 747 aircraft merged into one beasty of a plane.  it's suppose to fly high into the atmosphere and then air launch/drop they payload rocket to save money on launches.

The advantage of air launch is launch to any orbit inclination.  For now, Stratolaunch planning to use old Pegasus rockets, which are among the most expensive in the business.  Stratolaunch needs a new rocket to see savings or just be competitive, something they're not investing in.  Some of us think that Paul Allen is building Stratolaunch on behalf of the US government, a la the Glomar Explorer, hence the lack of apparent competitiveness and commercial viability.

Quote
I do wonder though. Given the cost savings projected by SpaceX's efforts of recovering it's launchers. That Stratolaunch's cost savings will be lose eventually when 2nd stages are recovered by SpaceX if they stick with their plans.

All of SpaceX's rockets are considerably larger than Pegasus rockets.  They don't really compete with each other.

"Ah, yes.  The belle dame sans merci.  The sweet young thing who will blast your nuts off.  The kitten with a whip.  That mystique?"
"Slavish adherence to formal ritual is a sign that one has nothing better to think about."
"Variety is the spice of battle."
"I've fought in... what... a hundred battles, a thousand battles?  It could be a million as far as I know.  I've fought for anybody who offered a decent contract and a couple who didn't.  And the universe is not much different after all that.  I could go on fighting for another hundred years and it would still look the same."
"I'm in mourning for my life."
"Those who break faith with the Unity shall go down into darkness."

Wrangler

  • Colonel
  • *
  • Posts: 24972
  • Dang it!
    • Battletech Fanon Wiki
Looks like the development of the Chinese permanent space station is coming along.

They are also going to deploy a smaller space telescope (two-meter-caliber space telescope) that's going share the same orbit as the Station.  Their plan is to have the space telescope be serviced by the station by docking with it to refuel and perhaps to do some basic maintenance should there be crew aboard the station.  The article didn't get too in-depth on the dimensions of the telescope. The Hubble has a 2.7 meter Diameter mirror, but Chinese telescope doesn't mention what other aspects, such as collection area, focus length is and so forth. Trying to look it up, the name of it maybe Space Solar Telescope.

The station's first parts are being send up in 2019 and made operational in 2022.  The Chinese want to have it up and running before the ISS's projected decommission date comes up.  Thus the only station manned in orbit would be the Chinese one.

The James Webb telescope isn't going be serviced like the Hubble was, so the Chinese are going to be 2nd to have a serviceable orbital telescope?
"Men, fetch the Urbanmechs.  We have an interrogation to attend to." - jklantern
"How do you defeat a Dragau? Shoot the damn thing. Lots." - Jellico 
"No, it's a "Most Awesome Blues Brothers scene Reenactment EVER" waiting to happen." VotW Destrier - Weirdo  
"It's 200 LY to Sian, we got a full load of shells, a half a platoon of Grenadiers, it's exploding outside, and we're wearing flak jackets." VoTW Destrier - Misterpants
-Editor on Battletech Fanon Wiki

Natasha Kerensky

  • Major
  • *
  • Posts: 3448
  • Queen of Spades, First Lady of Death, Black Widow
They are also going to deploy a smaller space telescope (two-meter-caliber space telescope) that's going share the same orbit as the Station.  Their plan is to have the space telescope be serviced by the station by docking with it to refuel and perhaps to do some basic maintenance should there be crew aboard the station.

I wonder how they plan to deal with the effects of volatiles and outgassing on the optics.  Or if the telescope will just be degraded and well behind the state-of-the-art.
"Ah, yes.  The belle dame sans merci.  The sweet young thing who will blast your nuts off.  The kitten with a whip.  That mystique?"
"Slavish adherence to formal ritual is a sign that one has nothing better to think about."
"Variety is the spice of battle."
"I've fought in... what... a hundred battles, a thousand battles?  It could be a million as far as I know.  I've fought for anybody who offered a decent contract and a couple who didn't.  And the universe is not much different after all that.  I could go on fighting for another hundred years and it would still look the same."
"I'm in mourning for my life."
"Those who break faith with the Unity shall go down into darkness."

Wrangler

  • Colonel
  • *
  • Posts: 24972
  • Dang it!
    • Battletech Fanon Wiki
I wonder how they plan to deal with the effects of volatiles and outgassing on the optics.  Or if the telescope will just be degraded and well behind the state-of-the-art.
That can' be handle in orbit by the station's crew?
"Men, fetch the Urbanmechs.  We have an interrogation to attend to." - jklantern
"How do you defeat a Dragau? Shoot the damn thing. Lots." - Jellico 
"No, it's a "Most Awesome Blues Brothers scene Reenactment EVER" waiting to happen." VotW Destrier - Weirdo  
"It's 200 LY to Sian, we got a full load of shells, a half a platoon of Grenadiers, it's exploding outside, and we're wearing flak jackets." VoTW Destrier - Misterpants
-Editor on Battletech Fanon Wiki

Weirdo

  • Painter of Borth the Magic Puma
  • Catalyst Demo Team
  • Major General
  • *
  • Posts: 40810
  • We can do it. We have to.
    • Christina Dickinson Writes
I believe he's talking about issues springing from the station, as well as the maneuvers to bring the telescope to and from it. You fire maneuvering thrusters, you're spraying all sorts of crap into your local patch of space. The density may be extremely low what with the endless nothingness that is that environment, but it's still there, and modern telescopes can't really afford to get anything at all on their mirrors. As I recall, Hubble orbits much higher than most of our other stuff in orbit specifically to avoid this. Unless China puts their station very high up they're going to have the same problem, and they're still going to have that problem whenever that telescope comes back to said station for servicing.
My wife writes books
"Thanks to Megamek, I can finally play BattleTech the way it was meant to be played--pantsless!"   -Neko Bijin
"...finally, giant space panties don't seem so strange." - Whistler
"Damn you, Weirdo... Damn you for being right!" - Paul
"...I was this many years old when I found out that licking a touchscreen in excitement is a bad idea." - JadeHellbringer
"We are the tribal elders. Weirdo is the mushroom specialist." - Worktroll

kato

  • Captain
  • *
  • Posts: 2417
Trying to look it up, the name of it maybe Space Solar Telescope.
SST died a quiet death in 2014 after about 15 years in development hell. The new system is called Xuntian (巡天), abbreviated XT. You'll find some info if you google that.

The two modules permanently docked to the core module Tianhe will be Wentian and Mengtian (the tian part in either name meaning sky/heaven).

Wrangler

  • Colonel
  • *
  • Posts: 24972
  • Dang it!
    • Battletech Fanon Wiki
Newsweek reported that there is a 10th possible planet (not counting the 9th one they THINK is a giant planet).
There thinking its 60 AU out from the Sun and they suspect it is the size of Mars.

It's kinda fastinating.  I wish the New Horizons could attempt to search for it, but doubt it would have enough fuel to do search like that.
"Men, fetch the Urbanmechs.  We have an interrogation to attend to." - jklantern
"How do you defeat a Dragau? Shoot the damn thing. Lots." - Jellico 
"No, it's a "Most Awesome Blues Brothers scene Reenactment EVER" waiting to happen." VotW Destrier - Weirdo  
"It's 200 LY to Sian, we got a full load of shells, a half a platoon of Grenadiers, it's exploding outside, and we're wearing flak jackets." VoTW Destrier - Misterpants
-Editor on Battletech Fanon Wiki

Lazarus Jaguar

  • Captain
  • *
  • Posts: 2823
  • Stop! Hammer Time!
and I just read an article from NOVA at PBS.org that the evidence for the 9th one is looking rather shakey right now.
You know, I love that every day in Japan is like a very peaceful game of RIFTs. - MadCapellan

around here, April Fools day is Serious! Business!

kato

  • Captain
  • *
  • Posts: 2417
I'm moderately sure i've read the "Mars sized object responsible for Kuiper cliff" thing a couple times before the last decade or so...

(P.S.: Note how further down in the article they expand that to "Mars to Earth sized" - seriously? That's like a full order of magnitude difference.)
« Last Edit: 24 June 2017, 18:46:01 by kato »

Wrangler

  • Colonel
  • *
  • Posts: 24972
  • Dang it!
    • Battletech Fanon Wiki
I was under the impression that the "10" planet is more propel than the gas giant.

From what i understand a new space telescope (not the Web) is being launched soon which could help in finding this stuff out. 
"Men, fetch the Urbanmechs.  We have an interrogation to attend to." - jklantern
"How do you defeat a Dragau? Shoot the damn thing. Lots." - Jellico 
"No, it's a "Most Awesome Blues Brothers scene Reenactment EVER" waiting to happen." VotW Destrier - Weirdo  
"It's 200 LY to Sian, we got a full load of shells, a half a platoon of Grenadiers, it's exploding outside, and we're wearing flak jackets." VoTW Destrier - Misterpants
-Editor on Battletech Fanon Wiki

kato

  • Captain
  • *
  • Posts: 2417
The LSST mentioned is a US-funded ground telescope with a 8.4m mirror currently being built in Chile. It's mostly a sky survey telescope that's supposed to do about the same thing - and is outfitted about the same - as Gaia has been doing the last five years from space.

Wrangler

  • Colonel
  • *
  • Posts: 24972
  • Dang it!
    • Battletech Fanon Wiki
Something remarkable done with AR,  Simulated the moon landing in one's kitchen.   If this could be perfected more, it could help plan space expeditions.   :D

"Men, fetch the Urbanmechs.  We have an interrogation to attend to." - jklantern
"How do you defeat a Dragau? Shoot the damn thing. Lots." - Jellico 
"No, it's a "Most Awesome Blues Brothers scene Reenactment EVER" waiting to happen." VotW Destrier - Weirdo  
"It's 200 LY to Sian, we got a full load of shells, a half a platoon of Grenadiers, it's exploding outside, and we're wearing flak jackets." VoTW Destrier - Misterpants
-Editor on Battletech Fanon Wiki

Wrangler

  • Colonel
  • *
  • Posts: 24972
  • Dang it!
    • Battletech Fanon Wiki
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #830 on: 28 September 2017, 11:33:09 »
There seems to be movement in doing things on the Moon.

European space agency has said its now going to begin movement towards a Luna Village on the moon.

Earlier this week, Russia and US space agencies signed agreement of occupation to build the http://Deep Space Gateway station.

I think this is interesting that US is again partnering with the Russians.  I thought the US was wanting to go it alone this time. I  am a believer in "When I see it, then i believe its going happen."    At least going be interesting hopefully when SLS or Falcon Heavy starts flying.
« Last Edit: 28 September 2017, 21:25:55 by Wrangler »
"Men, fetch the Urbanmechs.  We have an interrogation to attend to." - jklantern
"How do you defeat a Dragau? Shoot the damn thing. Lots." - Jellico 
"No, it's a "Most Awesome Blues Brothers scene Reenactment EVER" waiting to happen." VotW Destrier - Weirdo  
"It's 200 LY to Sian, we got a full load of shells, a half a platoon of Grenadiers, it's exploding outside, and we're wearing flak jackets." VoTW Destrier - Misterpants
-Editor on Battletech Fanon Wiki

kato

  • Captain
  • *
  • Posts: 2417
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #831 on: 28 September 2017, 11:52:27 »
European space agency has said its now going to begin movement towards a Luna Village on the moon.
Technically it's more that they've started a couple initiatives in which they mostly invite the commercial space industry to develop methods for future lunar ISRU. They'll decide whether to fund a mission to test those new methods in 2019. Offhand there's also a similar ESA initiative towards teleoperation of surface rovers from NASA's DSG. They'll probably put forward a couple more the next few years - these studies are pretty darn cheap.

Natasha Kerensky

  • Major
  • *
  • Posts: 3448
  • Queen of Spades, First Lady of Death, Black Widow
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #832 on: 28 September 2017, 17:50:18 »
There seems to be movement in doing things on the Moon.

Not to be a Debbie-downer, but don't get too excited.  If we stacked up all the paperwork for all the world's civil space studies that went nowhere, the pile would probably reach lunar orbit.  Baited-breath reporting about minor space studies becomes clickbait in the general press.  But that reportage doesn't necessarily mean (and usually doesn't mean) that much is actually happening behind-the-scenes.

Quote
European space agency has said its now going to begin movement towards a Luna Village on the moon.

The ESA Director-General is a fan of his "Moon Village" concept, but that doesn't mean that ESA's member states or the EU are.  Woerner has directed some very low-level discretionary money towards a couple conferences and studies.  But there's no buy-in or significant funding above his level yet.

Quote
Earlier this week, Russia and US space agencies signed agreement of occupation to build the Deep Space Gateway station.

No, this is just a joint statement that NASA and RSA think that the DSG is a nice concept to look at.  But there's no funding for its development in either agency.

http://spacenews.com/nasa-and-roscosmos-to-study-deep-space-gateway/

In the US, the new Administration has yet to get a NASA Administrator appointed, nevertheless weigh in on the direction of NASA's human space flight program, which may or may not include the DSG. 

In Russia, RSA has been trying to get the Nauka lab module launched to ISS since 2007.  (Maybe next year.)  Given the state of the Russian economy, it's hard to see where resources for Russian contributions to a DSG would come from.

And without getting political and violating Rule #4, it's worth noting that the geopolitics of recent years do not bode well for new US/Russian cooperative ventures in space.

Programmatically speaking, the DSG is a good idea if you have a moderate to high cadence of missions to the Moon or beyond.  But SLS/Orion will only launch 1/yr at most, rendering the DSG grossly underutilized.  It's bass ackwards.  The transportation tail (SLS/Orion) is wagging the destination dog (DSG).

Quote
I thought the US was wanting to go it alone this time.

That was two NASA Administrators ago.  Mike Griffin wanted the predecessor to SLS/Orion -- his Ares I/Ares V/CEV designs -- to not rely on foreign systems or contributions.  But even he wanted foreign participation at the destination.

Things have changed since then.  Orion is now dependent on ESA for its Service Module.

FWIW...
"Ah, yes.  The belle dame sans merci.  The sweet young thing who will blast your nuts off.  The kitten with a whip.  That mystique?"
"Slavish adherence to formal ritual is a sign that one has nothing better to think about."
"Variety is the spice of battle."
"I've fought in... what... a hundred battles, a thousand battles?  It could be a million as far as I know.  I've fought for anybody who offered a decent contract and a couple who didn't.  And the universe is not much different after all that.  I could go on fighting for another hundred years and it would still look the same."
"I'm in mourning for my life."
"Those who break faith with the Unity shall go down into darkness."

kato

  • Captain
  • *
  • Posts: 2417
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #833 on: 29 September 2017, 11:07:10 »
Aside from all that moon stuff, Rosetta's last image has been discovered.


Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

Scale of the above picture is 2mm per pixel, the rock in the center is smaller than your computer monitor. The picture was hiding in a set of three telemetry packets and was not sent completely since transmission was cut off when Rosetta crashed into the comet. Since it was incomplete (and spread over three packets - a standard picture from Rosetta was six packets) the automatic image generating software did not recognize it.

For scale:


Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

The bottom-right picture was the previously-known-last-picture by Rosetta, taken from 24.7+-1.5m altitude. The new picture, offset slightly to the left, was taken from 19.5+-1.5m altitude. Also, yes, the two pictures belong exactly like this next to each other, probably giving the only series of sequential pictures by Rosetta that are almost exactly edge-on without overlap or gaps.

The planned impact site was only about 1.3m (about the size of the larger frame) beyond the new picture going straight "up" from the edge inbetween both pictures.
« Last Edit: 29 September 2017, 11:10:38 by kato »

Wrangler

  • Colonel
  • *
  • Posts: 24972
  • Dang it!
    • Battletech Fanon Wiki
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #834 on: 29 September 2017, 11:52:49 »
Wow, this is like the week of Moon/Mars efforts.

Musk refirmed his plans to go Mars, by reducing his BFS to 40-person vehicle and establishing a Mar City.  I'm glad he has ambitions to go, but I think these plans need more meat to them.  Like how their going to protect the people on Mars from getting sick from radiation and how their going get food/water (that may/maynot be drinkable to people.) I do think reusing his large transport/spaceliner for other missions like Orbital Airlines and Luna missions is very good thing if it works.

Lockheed Martin released info about their efforts for Mars
by making a space station and sending to Martian orbit. They would have dedicated Mars only MADV vehicle.  The proposal picture are pretty cool looking, but I greed with Natasha Kerensky that these are proposal and not hard evidence that this stuff is rolling toward actually happening.

Still it's interesting.
« Last Edit: 29 September 2017, 11:55:41 by Wrangler »
"Men, fetch the Urbanmechs.  We have an interrogation to attend to." - jklantern
"How do you defeat a Dragau? Shoot the damn thing. Lots." - Jellico 
"No, it's a "Most Awesome Blues Brothers scene Reenactment EVER" waiting to happen." VotW Destrier - Weirdo  
"It's 200 LY to Sian, we got a full load of shells, a half a platoon of Grenadiers, it's exploding outside, and we're wearing flak jackets." VoTW Destrier - Misterpants
-Editor on Battletech Fanon Wiki

worktroll

  • Ombudsman
  • Lieutenant General
  • *
  • Posts: 25625
  • 504th "Gateway" Division
    • There are Monsters in my Sky!
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #835 on: 05 October 2017, 20:52:32 »
https://phys.org/news/2014-02-astrophysicists-duo-planck-star-core.html

This. I'm excited. Has a number of aspects that make me very intrigued.

Especially the detectable radiation. Which, if we did have mini 'quantum' black holes, means these things are out there.
* 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"

Weirdo

  • Painter of Borth the Magic Puma
  • Catalyst Demo Team
  • Major General
  • *
  • Posts: 40810
  • We can do it. We have to.
    • Christina Dickinson Writes
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #836 on: 05 October 2017, 22:03:19 »
So if I'm understanding this correctly, a Planck Star is a shitload of matter compressed into a thingy one quanta across, as opposed to a singularity which is infinity-tiny across? And that one weirdness is the infinite difference between books being sucked out of the universe completely and books tossed into an EXTREMELY effective trash compactor?

Also, what's wrong with destroying information, and should I think twice before cleaning out my browser history?
My wife writes books
"Thanks to Megamek, I can finally play BattleTech the way it was meant to be played--pantsless!"   -Neko Bijin
"...finally, giant space panties don't seem so strange." - Whistler
"Damn you, Weirdo... Damn you for being right!" - Paul
"...I was this many years old when I found out that licking a touchscreen in excitement is a bad idea." - JadeHellbringer
"We are the tribal elders. Weirdo is the mushroom specialist." - Worktroll

worktroll

  • Ombudsman
  • Lieutenant General
  • *
  • Posts: 25625
  • 504th "Gateway" Division
    • There are Monsters in my Sky!
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #837 on: 05 October 2017, 22:25:54 »
1) No, the Planck star forms considerably above the Planck length.

2) Everything - and I mean everything - in all theories everywhere rely on nothing being created or destroyed. And thanks to E=MC2, matter=energy, and energy=information (hence the heavier one is, the more one knows).

Yes, you can shuffle things around, but it's all there, maybe spread out, with entropy grinding everything down to cold photons.

Except for singularities.

For example, picture a black hole fed on matter, and another on photons. There's no way to tell the difference - black holes only have mass, spin, and charge. The differences all go down the plughole. There's a reason Hawking subtitled his famous paper "The breakdown of physicists in the vicinity of a singularity". The virtual particles emitted from a naked singularity are just as likely to be evidenced as baryonic, leptonic, player pianos, or Great Cthulhu himself.

I like this approach even more, because it fulfils the joking "Law of Cosmic Censorship" - "Thou shalt not have a naked singularity". All the context & information is contained in the Planck Star, and would be re-emitted as it evaporates. Plus, it provides for "Big Crunch".
* 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

  • Master Sergeant
  • *
  • Posts: 279
  • ex scientia, ad astra
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #838 on: 06 October 2017, 07:10:13 »
Most interesting guess i've seen for the dimming is that the star consumed a gas giant on an eccentric orbit (similar to WASP-12), and that the gas giant's former moons now act as humongous periodic comets with truly gigantic outgassing covering like half the star when viewed from our direction.
F3 class stars only shine for a billion years or so...  Tabby's Star formed about when the earliest just-barely-multicellular organisms were evolving on Earth... hard to see how life could emerge there, evolve, into an intelligent species, more advanced than humans... all 5x faster than on Earth...

Also, no known exoplanets have R > 2 R_Jupiter, and whatever's obscuring almost a quarter of the star's light must have a radius of 5-6 R_Jupiter... Super-Jupiters and Brown Dwarfs aren't that big, and would be warm enough to detect in IR...

cold, large, acting like microscopic dust & ice grains... I offer that it's actually a "super Saturn" with an extravagant system of "super rings" & shepherd moons (with more moons orbiting beyond)... IDK obviously, pure speculation :)

Weirdo

  • Painter of Borth the Magic Puma
  • Catalyst Demo Team
  • Major General
  • *
  • Posts: 40810
  • We can do it. We have to.
    • Christina Dickinson Writes
Re: Deep Space and Interplanetary Exploration - The Universe is Timeless
« Reply #839 on: 06 October 2017, 09:02:47 »
F3 class stars only shine for a billion years or so...  Tabby's Star formed about when the earliest just-barely-multicellular organisms were evolving on Earth... hard to see how life could emerge there, evolve, into an intelligent species, more advanced than humans... all 5x faster than on Earth...

This assumes that the advanced aliens evolved there. If I were advanced and rich enough to build a star-obscuring megastructure, I'd send a slowboat expedition to a nearby empty system and build there. If it's a power collection device, I can microwave-beam the juice back to my home system, and it's for extracting tangible resources, I can use mass drivers for the same purpose(either way, put the receiving end at the Zenith or Nadir points to keep mishaps at a safe distance from habitats and planets). That way if something goes wrong when building/operating the megastructure, it's not my home system that's suddenly full of a mess of debris that the term 'biblical proportions' doesn't come close to describing.

And if it's a habitat, then the more star systems my people inhabit, the harder it is for a natural disaster to wipe us all out. Redundancy is good. Redundancy is good. Redundancy is good. :)
My wife writes books
"Thanks to Megamek, I can finally play BattleTech the way it was meant to be played--pantsless!"   -Neko Bijin
"...finally, giant space panties don't seem so strange." - Whistler
"Damn you, Weirdo... Damn you for being right!" - Paul
"...I was this many years old when I found out that licking a touchscreen in excitement is a bad idea." - JadeHellbringer
"We are the tribal elders. Weirdo is the mushroom specialist." - Worktroll