The thread for space cadets!

The first illustration they show off is from a famous NASA design study from the 70's that I regularly reference. I read a copy from the library years ago, then decided to buy my own copy but I didn't realize the reprint I bought had all of the many beautiful illustrations in black and white and was pretty mad about it. Then when in Portland, I found an old first edition with full-color images at a huge bookstore and bought it. :D
 
Stellar shock wave. The giant star Zeta Ophiuchi is 20 times more massive and about 80,000 times as bright as our Sun. As it hurtles through space at 24 kilometres per second it creates a bow shock — a set of glowing ripples produced when hot stellar winds collide with the surrounding dust. The image was taken by NASA’s Spitzer Space Telescope using its infrared camera, and is one of 16 images highlighted to celebrate Spitzer’s 16th birthday.
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ı know this is not the right thread , but am an Admiral of the Starfleet , ı know what time critical means and do not like to run over my own word by going into the SW thread as ı want to avoid all sorts of spoilers , only to keep Disney from mistakes ı would have to drag them across coal and Mustafar's lava and they ain't no Anakin to survive that either ... So , that was that two posts over there .


well , ı never watch Party channels and was accidentally surfing across when ı saw this trailer for Rouge One . Right there creates an opportunity to remind the Stuntwoman her original sin . Can't resist that one , so ı end up in front of the TV and discover that's for tonight , while it was Episode VII actually on show . And happy to say , ı can "fix" that easily in addition to the original glow ı had , recognizing Lucas origins back in the movie release . First thing first , ı was not allowed to remove the blaster bolt in stasis thing . Am really not allowed to force choke the guys talking of Luke Supremacy , ı can't let some happening of any Vader Supremacy . And struggling to get Han's ship replaced with its "eating" Millennium Falcon , original artwork showing much better kind of a ship . That makes sense . So :

1) an entire scene required for Jakku

2) a "tailor made" Han Solo scene , that might require a voice-over

3) a full voice-over for some section about at the end and there you are , it will no longer be this start-slow Disney violation of Star Wars ...
 
ı am relieved that my USB problems keep me even slower in following the aviation industry . Turns out the artillery spotter London insists is a fighter named Tempest has also debuted in Paris and don't ask how familiar am with its silly profile and the sort , but also had a TIE fighter pilot in the cockpit , too . Yeah , sure this proves the Galactic Empire supports London over r16's hate . Once , like when all this Maidan business was beginning the Ukranians had a Darth Vader costume and a Chewbacca costume in the demonstrations and like that "proved" support was behind them . Nobody reads r16 when he says really silly stuff , you know , like costume does not make Lord Vader ...
 
a comet approaches the asteroid belt at ~40 degrees above the ecliptic reaching perihelion in early December. They're claiming it might be the 1st observed interstellar comet. Recently a cigar shaped asteroid passed thru and was believed to be the 1st interstellar asteroid.

Do they believe these objects are interstellar solely because of their hyperbolic orbits and speed? How do they know these objects aren't already members of our solar system? Does the mass of our solar system partly determine if these objects have the velocity to escape, ie if the mass of our solar system is greater than we know, could these objects already be in captured orbits?
 
Do they believe these objects are interstellar solely because of their hyperbolic orbits and speed? How do they know these objects aren't already members of our solar system? Does the mass of our solar system partly determine if these objects have the velocity to escape, ie if the mass of our solar system is greater than we know, could these objects already be in captured orbits?
Members of solar system must have elliptic trajectory relative to the Sun or a planet. If an object has hyperbolic trajectory relative to the Sun, it will necessary escape, unless something slows it down (like collision). Mass of solar system does matter because it affects trajectory. So, if an object goes by hyperbola, we already know mass of solar system is not enough to capture it.
 
What do you mean?

I haven't looked into this one in particular but I would put money on 'almost nothing like Earth' except it's in a habitable zone and not a gas giant. But the truth doesn't make for good headlines...
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a comet approaches the asteroid belt at ~40 degrees above the ecliptic reaching perihelion in early December. They're claiming it might be the 1st observed interstellar comet. Recently a cigar shaped asteroid passed thru and was believed to be the 1st interstellar asteroid.

Do they believe these objects are interstellar solely because of their hyperbolic orbits and speed? How do they know these objects aren't already members of our solar system? Does the mass of our solar system partly determine if these objects have the velocity to escape, ie if the mass of our solar system is greater than we know, could these objects already be in captured orbits?


The two main parameters are the inclination and the speed the object has. If the speed is high enough to escape the suns gravitational influence it's going to move on a hyperbolic path.
As for inclination, Solar System bodies usually orbit close to the ecliptic. So a highly inclined orbit is another indicator something may have come in from the outside.

Now both parameters can be changed via interaction with mostly the big gas giants, so scientists usually trace back the orbit of the object in questions to look for just that. The comet you refer to doesn't seem to have had any major interaction with the big planets, hence the initial conclusion that its an outsider.
 
North polar dunes on Mars
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This captivating image was taken in the north polar region of Mars by the ESA/Roscosmos ExoMars Trace Gas Orbiter’s CaSSIS camera.

Dunes come in various characteristic shapes on Mars just as on Earth, providing clues about the prevailing wind direction. Monitoring them over time also gives us a natural laboratory to study how dunes evolve, and how sediments in general are transported around the planet.

During winter in the polar regions, a thin layer of carbon dioxide ice covers the surface and then sublimates – turns directly from ice into vapour – with the first light of spring. In the dune fields, this springtime defrosting occurs from the bottom up, trapping gas between the ice and the sand. As the ice cracks, this gas is released violently and carries sand with it, forming the dark patches and streaks observed in this CaSSIS image.

The image also captures ‘barchan’ dunes – the crescent or U-shaped dunes seen in the right of the image – as they join and merge into barchanoid ridges. The curved tips of the barchan dunes point downwind. The transition from barchan to barchanoid dunes tells us that secondary winds also play a role in shaping the dune field.

The image is centred at 74.46ºN/348.3ºE. The image was taken on 25 May 2019.
 
Nearly 15 years ago there was a site about how the world would/could end. One scenario was that a comet or asteroid broke up and dimmed the light received by Earth. There were no sources for it and I never found any, and it got me laughed at 14 years later in a discord. 'How could dust dim in space?' and now lo and bloody behold, there's some solid numbers at long last. And only 90 miles across? Sheesh. Cube-Square law and volume is in full swing it seems.
 
One of the proposed explanations for periodic mass extinctions is our solar system's voyage around the galactic center entering dust rich planes. Its the same idea when we go thru the debris trail of a comet producing meteor showers as we encounter streams of dust.
 
House committee members are skeptical about NASA returning to the Moon by 2024 on Commercial hardware, pushes for SLS; but SLS is incredibly rocky - even by 2024, EM-2 might not be ready.

Gods how did we end up in this state? Though, to be fair, once the shuttles were cranked out, it's been this huge malaise and withering. At least the shuttles flew regularly; we're stuck with lifting people up for a joyride with Spaceship Twos by 2024. And if we can't even get to the Moon by 2024, we're to get by Mars by 2038? HOPE-esque missions in the late 40s?
 
House committee members are skeptical about NASA returning to the Moon by 2024 on Commercial hardware, pushes for SLS; but SLS is incredibly rocky - even by 2024, EM-2 might not be ready.

Gods how did we end up in this state? Though, to be fair, once the shuttles were cranked out, it's been this huge malaise and withering. At least the shuttles flew regularly; we're stuck with lifting people up for a joyride with Spaceship Twos by 2024. And if we can't even get to the Moon by 2024, we're to get by Mars by 2038? HOPE-esque missions in the late 40s?
Two primary factors - Obama and Senator Shelby (R-AL)

Everything Obama wanted to do was fought tooth and nail by Republicans in general. While he didn't have a stirring vision of a return to the glory days of Apollo, he had solid plans for NASA and the growth of private industry in space. The Republicans fought him at every turn for new programs because he was Obama.

Shelby in particular wanted to stop the growth of private space ventures (in particular SpaceX) because he saw it as a threat to the NASA center and its coterie of contractors in Huntsville. I can go into details if you really want but a lot of the tricks he pulled (and is still pulling) were quite nasty and underhanded. I don't mean to bring politics into the thread but these two factors sum up much of the problems our space program has had.

The other issues is the way that NASA's bigger programs are at the mercy of the ever-changing presidential administrations and the abysmally poor way that NASA has managed its contractors. These two factors are significant but the first two factors are more dominant in my opinion.

NASA will be returning American astronauts to space on Boeing's Starliner and SpaceX's Crew Dragon by next year though. Spaceship Two doesn't really factor into NASA's exploration plans outside of some microgravity research (and it also can't get to orbit).

Here's something cool
The Air Force Names Its New Jet After the Tuskegee Airmen
The T-7A Red Hawk commemorates the achievements of the African American fighter pilots in World War II.
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https://www.popularmechanics.com/military/aviation/a29108820/air-force-jet-tuskegee-airmen/
 
I was watching a documentary on supermassive blackholes and the physicists explained that there is a limit to the rate of mass a black hole can take in. If there is too much mass falling into the blackhole all at once, the heat the mass undergoes from being compressed by gravity makes it radiate so much energy that it provides enough pressure to quench the rate at which more mass can fall in.

The question I have is if this energy/pressure can be so great that the mass falling into the black hole can be forced to undergo fusion? In other words, can a 'hollow' star (really probably toroid-shaped) form around the black hole if it tries to consume enough mass?

@uppi - got any thoughts on this?
 
I was watching a documentary on supermassive blackholes and the physicists explained that there is a limit to the rate of mass a black hole can take in. If there is too much mass falling into the blackhole all at once, the heat the mass undergoes from being compressed by gravity makes it radiate so much energy that it provides enough pressure to quench the rate at which more mass can fall in.

The question I have is if this energy/pressure can be so great that the mass falling into the black hole can be forced to undergo fusion? In other words, can a 'hollow' star (really probably toroid-shaped) form around the black hole if it tries to consume enough mass?

@uppi - got any thoughts on this?

I would say yes, but it would soon run out of material and then stop.

Consider this Chandra observation :
https://www.nasa.gov/mission_pages/...ch-supermassive-black-hole-burping-twice.html

According to the press release, the black hole heated the gas to "millions of degrees", which is certainly hot enough for some fusion to occur. How much would depend on the density, but this is too far out of my area of expertise to estimate anything (everything being near a black hole in very much curved space doesn't exactly help, either).

But to sustain that, a massive supply of material is needed. The event above was caused by colliding galaxies and it is hard to imagine an event that would supply a black hole with even more material to feed on.
 
and there we have the solution to global warming, pollute the air with dust
In other words, controlled nuclear warfare. Just enough to usher in not a nuclear winter, no, but rather a nuclear autumn.

What could possibly go wrong?
 
With lunar night falling, hopes that ISRO will be able to reconnect with their fallen lander are fading. They spotted the lander intact on the surface but at an angle and have tried to contact it for the last couple of weeks to no avail. There's essentially no chance that it will survive two weeks of lunar night at this point, if it is indeed still alive right now.
 
what do we know so far ? As in literary device , a way to start , now that ı know it's all lies , like obviously . Them UFOs that troll the USN , and like only the USN ... Two qoutes for continuity measures so that you can get a desire to commit suicide if you are unhappy with life but can not make the jump



no , ı won't eat you , people .

book report time

so , supposedly there are things outta there . Naturally invented by Americans and before ı get started these all are from one single blog , now that am getting old and do not want to burn my brain with like a full "research" . So , these are balloons with cube shaped radar reflectors inside and Americans used them back in 1962 or thereabouts , releasing them from a sub , while a destroyer (with hull under the horizon but antennas just making it) made fake signals that got both SA-2 batteries and interceptors on Cuba to react , their reporting of various angles and distances showing what the Commie radars could see , naturally involving many such balloons at different heights and locations . To mimic an American jet coming in , perhaps after leaking "rumours" that a surprise nuclear strike was in order . So far , so good .

then supposedly in 2004 , when USS Nimitz had the very bestest of radars and networks and stuff and more stuff , you know , an alphabet soup of acronyms and the work-up period of the airwing , them training close to home before leaving for patrol , suddenly saw them aliens showing up . Which they didn't , but hey , this is America talking , America never lies . Then we learn , and ı wasn't aware until Monday/ 2 days ago , that there was a second phase in 2014-5 , as the improved version of that Nimitz gear was to be tested in some other carrier that had been refitted . You all can rejoice in that USN has joined the crusade to call yours idiotly a liar . You see , 2014 and 15 are the years of ISIL , maybe not literally but figuratively the heart eaters , oppressing Kurds and like "secretly" assisted by New Turkey . ı have no idea of how they do it , at least in these days , but one might even assume them Red Rippers was the designated squadron to help the Kurds by getting into a violations game and shooting down a couple of New Turkey F-16s . Considering revelations after the Disgrace of July 15th , that would have been something good for the Turks , considering the numbers of Congregation in the services , who would have used the same F-16s to bomb Turkish cities as soon as America cleared them .


like hell no to a claim that UFOs were deployed to make them aware they would bleed rather bad . America loves New Turkey über alles , even more than the Kurds , America will never hurt New Turkey with like downing a good F-16 that can reach Rome in 15 minutes from Turkish bases , like F-16 is the bestest as newspaper trolls and so called experts of TV need something to brag about the matchless New Turkey airpower . If this was like ever the case , why didn't the 2004 event didn't stop the "Affair of the Sack" or at least its aftermath ? In which American Special Forces arrest their Turkish counterparts in Kerkük on the 4th of July of the year , to protect the occupying Kurdish officials from assassination . And treating their supposed allies in NATO as terrorists , hands tied and sacks on the head . Oh , backing from 2017 or so it's like awesome . That Nimitz is not aware it's being tested and will do its damnedest to acquire them targets and this is a good test to see the limits of the tech and crew . Now that nobody in his right mind would want to create an impression that anyone could ever match them Americans , so there is like an endless effort that this is actually some American Black programme . Then a singer dude getting all the red carpet treatment to make it look like Grays from outer space , because covering Black programmes with Aliens is a long running American tradition ... because the American taxpayer must be cheated and he can never understand the concept of miltary secrets .. Love the part where the Navy allows USAF to land on a carrier and confiscate all reports and computer harddrives , because Presidential orders make the Bluesuits only people in the know !

let me allow to bah and meh at the reports that Americans have actual UFOs as well , now that the lanterns of the 2014-5 are easily fully capable of mimicking . You get a radar contact from an Aegis cruiser , can not confirm , call on a jet to investigate and he arrives on location to see Lantern A , which is powered down as a radar reflector and Lantern B is powered up elsewhere , oh my , the little green guy just made a teleport 50 miles away and 10 000 feet down ! Too much words make one a fool and pictures let people to grasp , so here is a little green guy :

yoda.jpg


as he well knows , 2014 affairs are better . This time it's them pilots . One of them nearly crashes into one of these lanterns / no doubt he is the chosen shooter and like with some human story , to fill the airwaves as America suddenly discovers their allies for like 68 years since 1947 have been guys with towels on their heads , while claiming to be humans and stuff ! So , like this Lantern C is let in the sky as a mine , which leads to pilots' complaints that the secret tests are dangerous and there should be Notams and briefings , this is why USN comes clean in 2017 so that the pilots can be briefed about that they might run into Lanterns . ı don't know why the code word is reused , being the original name for LANTIRN , but as monkeys we were not made by the Christian god to understand Americans anyhow . And oh my , lanterns even escort the carrier into the Mediterrenean , but getting less frequent , as this world order requires Israelis being smarter than average Americans and you will not see them unable to spot them lanterns . And to keep the story going , lanterns are even in the Persian Gulf , which am pretty sure we were calling the Basra Gulf in the 1980s . But to a lesser degree -as the pilots are busy with wordly stuff and not interested in gimmicks they have already become accustomed to ... Though with like twists . Like the lanterns do not "match" laws of physics and stuff , like they move around like as in FAST even if they do not and while they can assume rockets and stuff as in making the radar reflectors work and IR beacon thingies heat up at the same time , it should have been quickly running out of juice . An hour versus 10 is the given thing , but ı am betting the unit of time is intentionally wrong and should read minutes . Yes , picture time ! Didn't anyone tell you that you do not make little green guys angry ?


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and the best thing "is" actually the guys do not see the balloons , unless it is lit up for them to see . Radar sees them , like because the greatest evah American industry have created awesome radar sets , IR sets see them like because the greatest evah American industry have created awesome IR sets , but eyes do not . Which should have been totally obvious , now that nobody else in the world sees them except the USN , because . You see the lengths America goes when it loves New Turkey ? As such one is simply led to believe the balloon size is not what it should be , but smaller , much smaller to take it out of the eagle equivalent eyesight of American pilots . Leading to boyancy issues . Means they are filled with Æther . New keyboard has æ and ı can write ß, too , like simply like that ... But too much such love will hurt the Congregation . Instead of the "wrongs" committed against them corrected , they see PM gets more and more plums . Turns out New Turkey will be back in F-35 , tariffs lowered , after getting sized up by Lindsey Graham he even got a meeting with Trump , because the "Muslims" would be ready to jump ship if Trump did not show his preference for the PM . To keep the media away from speculating on stuff , the leader of almost racists becomes sick and all the trolls help by claiming he had a stroke and is in a coma . Even more impressively at the hospital of a conspiracy victim , the guy accused of poisoning Ecevit , because America is trying to keep the game up and up with a plot to get the splinter party from the almost racists to become the new crutches for A-K-P and almost racists will once again become Turks to infiltrate the Turks . If you find this sentence silly , well , the post is all about how America is dumber . And the PM opens an Ara Güler exposition in New York , Güler being a photographer of Armenian origins and his "latest" work before he died was a series with the PM . "Afedersiniz , Ermeni" means the speaker apologizes to the audience that he has to use a dirty word , Armenian , only because he really has to . Proves the PM reaches to masses without a single problem . Güler was like vilified by the Left for his latest , Armenian community was not vocal at all and like the country wouldn't hear them if they said anything anyhow . In any foreign big city the PM visits , he opens an Ara Güler exposition , too . Such being the stuff , the Congregation then gets the "consolation" that America has not yet abandoned them . Hence the senator who checks the Homeland Security writes some scathing letter to USN accusing them of hiding stuff ...

now that English is not my native tongue , ı get the impression that he doesn't talk of reports that are collected from China in various intelligence operations , some as simple as reading newspapers from China , but Chinese "complaints" that they are visited , too . America will want you to believe that's intented to slow down any Shangai Treaty talks in which Putin will rob us even more with promising to get New Turkey in .


industry ? Why , am all about industry . See , because they can't see by eyes , they add TVs ... on a droptank on the fat dumb subpar Hornet which will then go and dogfight , with the drop tank on with

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now that the claims also include this tic-toc or whatever the hell can also dive . Abrams getting nuTrek Enterprise down , attempting to get Millenium Falcon down , despite some reference that says the Corellian type can be filled entirely for any amphibian owners , hence , you know . Don't give me any reports from 1950s that UFOs could dive , am like 50 years old now , ı have read books . (Note : ı object to the T-70 concept seriously , the intakes are already short) And ı can't tell the reasoning . Is it "Why bother, it's nothing." or is it "Why bother, we are dead already" ?


and then stuff . When talking about abstract things , it helps to have some visible object that can help visualise , even when it has got nothing to do with the real issues . (Me being a guy who is not an aircraft engineer , because his brain simply stopped with integrals in 1986 or 87 or thereabouts . Right in the very first maths lesson that dealt with them .)

now that there is this "new" team at the Voice of Russia , the Hour of Opposition slot , actually the guys who started it years ago , with an alleged reputation of locking horns with me before . From them ı learned a bigger-than-Enron scandal awaits General Electric , creative book keeping and tax evasion or whatever with whatever . Electrics he says , like he has only heard of it only once or twice , for he has to look uninterested in Corporate America because the target audience "must" be Leftists who can't tell Dow Jones from Nasdaq . Why , they are late to the party : ı have one movie a year , this is a Star Wars year (though asking for an exemption in November for Terminator) so ı didn't see it but there was this movie about Tesla , Westinghouse and Edison and its newspaper review had one single little picture from which ı deduce Nikola Tesla invented the lightsaber , too .

cumberbatch-in-the-current-war.jpg


jedi General Etain Tur-Mukan might as well observe that the Jedi can commit genocide as long as they don't get emotional , so there's nothing to Tesla dying penniless , with more inventions of his collecting dust ... instead of some useful Nazi slashing . Fully welcome the demise of GE , so that the little dictator of Russia can call on his good , no scratch that , better friend Trump to buy the whole lot . Or at least acquire the 1953 patent for plasma stealth , for because ı surely will not provide it for Su-57 and previous , irregardless of whatever might have been promised or not promised .

and one can openly whistle at how the times change . This year yours idiotly channel surfing came across an X-files episode . Where the UFO crashes and USAF covers it with the cover story that a Libyan jet was coming in to nuke America and it crashed and all the radition poisoning was due to leaking plutonium ... Have been collecting some grumpiness , ı was even nicer back in the day . That means am perfectly capable of accepting the second son-in-law's tech festival has drawn 1.7 million people over 6 days and on weekends half a million might a day indeed have come . With Istanbul having more people than 50 or 100 countries , never minding the claimed 70 000 people who were supposedly paid by the Istanbul Municipality for doing nothing but getting on a bus to travel whereever the PM was to give a speech . The thing is like about the TıRT presenter who admonishes the PM's son-in-law's newspaper people that they should present a common front to the enemy and claim "almost 2 millions" . And which is corrected by the former pinnacle of yellow journalism in the country by giving numbers of 1.7 million visitors or 2 million people who attented . Can't make a difference between the two words , so it's probably repeat visitors and those who worked in the stalls , because the aviation reporter has to be "supporting" the 2nd son-in-law , because business . Nor there's any attempt to start anything between the son-in-laws , now that America did not make a martyr of the PM on the Disgrace of July 15th , now that his followers would be immediately on each other to share the loot instead of presenting a common front to the enemy . And oh my , the former editor of said newspaper , whose name was almost synonimious or whatever with lackey in the good old bad days shows he is like self reliant than many . As a footnote type passage in the column (where he discusses how American women are now applying masks to their back sides) we get the idea . Greta Thunberg , the climate activist , has named New Turkey among the worst polluters , now that she isn't "normal" and doesn't know the strategic imperatives of keeping New Turkey in the line of presenting a common front to the enemy and like suddenly she's found fake , even by them Leftists . The former editor tells she has this condition and it might really blow back . So , ı don't expect to hear that she is a professional sex worker at such an age but there will be some remarks with regards to actual , perceived and assumed problem/lack in mental procession capability . You know , this is what America keeps alive and USN claims UFOs came and ate their lunch and at least a thousand people are actively working on this to prove they don't love New Turkey but there are aliens .
 
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