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Galactic Geologic Interval Hypotheis is presented in full on page one.

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Abstract: Geologic Periods are shown to coincide with eight galactic arm intercepts of our solar orbit of the Milky Way Galaxy. Eight Periods have a periodicity of 74 million years (M)...

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The moon was surprisingly struck my a Meteorite yesterday. When they cannot see them coming on the moon, the SUN impacts are a big unknown. Goes to SUN_Meteorite extinction causation.

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And NASA has published datum to indicate that iron nucleus is much more deadly to life forms than GamaRays. Supposing an planetary asteroid impacted the sun, penetrating the outer metalic core, we would receive a mega dose of both. I understand that traces of this were found for the Ordovician extinction. One of the major five extinctions known to science.

Goes to SUN_Meteorite extinction causation.

Ahem...6,051 views. Astronomy is missing hardcopy sales with this interesting subject. So tell me, You think or not...

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Thanks marsbound2024...

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Thanks stars4life...

Statistics: 17 replies by eleven registered guests.

Astroceltica* = 1, jerryclick* = 1, chipdatajeffB* = 4, MaddCow* = 2, Silveradogold = 1, marsbound2024 = 2, mr_magazine = 1, Doberman = 2, stars4life = 2, and space_man = 1.

These include the original posting* 'Galactic Geologic Interval'. And the replies have been instrumental in refining this subject. I deeply appreciate all the support and criticisms. When I have the time, this will be developed into a formal theory. I have one question, has anybody any knowledge of a similar hypothesis. I have not seen any....

 

morbas, if people had continued interest in discussion of this subject, they would express it with replying to your thread.  Let it die my friend.  All topics must eventually die.  If a future situation brings about relevance to bringing this hypothesis up, do so, but for now you should let it go.

, marsbound2024

I don't know marsbound... I've reduced to stopping in to read every now and again for at least 6 months now, but the persistence of morbas about this is one of the things that makes it still feel familiar. I don't know that he has made a case with out holes or other explanations for his observations, but he is very dedicated to the topic.

I'll tell you that I stopped opening the "manned mission to Pluto" or whatever such pie in the sky threads. I mean... come on, we can't even get back to the moon with out a ten year warning. How (and why) are we ever going to go to Pluto?

At least there is a source of debatable ideas on this thread. Morbas has definitely been his own best respondent and proponent for this thread. But so was Mohammed Ali back in the day.

Also, I will bet that morbas has been told to let this go many times before... I have even thought it myself. Truth is, he is likely to continue no matter what we think of this theory. Now that's dedication.

 

Thanks for the critic. As a temporary stand in for the meteorite data that will follow in a few weeks, I offer my thoughts about perseverance.

In of itself, science is an innocent and unprejudiced philosophy, providing logical/repeatable/documentable methodology to ascertain the principles of a system from the known facts. Although the philosophy of science is innocent, the system surrounding it provides a prejudiced environment that clouds scientific discovery. That is why science is not continuous, advancing in steps, steps that occur when the preponderance of evidence overtakes existing precepts. By having a web sight such as this, ASTRONOMY has lowered the threshold and promoted linear scientific advancement. In concert, this thread is proposed as an hypothesis. Perhaps a new ASTRONOMY hardcopy section should be more a hypothesis hardcopy opportunity, than reports on finished theory papers/research and established authors. But my goal remains to finish this as a theory....

 

LEFT CLICK TO UNFOLD

Another view of the Milky Way Galaxy from

http://www.space.com/scienceastronomy/060227_mm_milky_way_tour.html

Well, all I have to say is for a more detailed mapping look at figures one and two. Figures one and two are supported by a composite of references.

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Just to keep all my noteds together, addendum....

Letter (sent) to Astronomy,

Cosmic Shooting Gallery, Astronomy November 2005. Based on our own Geologic History, intelligent life will emerge from a terra biosphere in about eleven Periods. Contrary to Steven Nadis ‘Shooting Gallery’, extinctions are necessary to the development of intellectual life types. We see through each Geologic Period an establishment of a dominant species. This suppresses competing species, relegating intellect to small size. Extinctions restart domination through elimination of larger life forms. Smaller species then have a periodic chance for dominance. In a real sense, this is evolution.   Within the Galaxy, multiple threats can cause extinctions. Quantifying the Period boundaries yields a 74 Million Year (My) fundamental for seven of the eleven Periods. Indeed, the three Periods not on this major 74My alignment, have themselves a 74My fundamental. The odd one out is the end of the Pre-Cambrian, a non terrestrial Period. So Looking at the Seven, we see an alignment with a projected Sun intercept of the Galactic Arms in our orbital path around the Galaxy. This stems from the Milky Way Galaxy Arm structure, the Solar APEX star group, and recent measurements of Hydrogen/Helium velocity vector in our region. At about 22Km/s arm expansion, an arm to arm distance, yields 74My correlation that is in phase with seven Geologic Periods. Much remains to understand our Milky Way Galactic Arm dynamics.   The single extinction causal search has been befuddled because multiple threats types will cause extinctions. This is the environment within each ARM. [1] Galactic Geologic Interval Hypothesis, forum user morbas. [2] Letter sent astronomy editor October 2005.

They did not print it....

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What, wait a minute....

Reference:http://heasarc.gsfc.nasa.gov/docs/cosmic/cosmic.html

I recently visited the above NASA sight, chained to Enceladus reports. The Milky Way Galaxy they portray indicates the SUN is in the Sagitarius Arm. What , wait a minute. JPL says it is not. References shown in this thread indicate we are in the Orion Arm. NASA also indicates that the Milky Way barred structure is in doubt. What , wait a minute. The references in this thread indicate the size of the Bar has been known for (almost) ten years. JPL has recently indicated it has evidence about the bar size (26k light yrs) agrees with the references in this threadof 25k light years, over ten years old). I think this requires NASA edits. It ranks with the http://en.wikipedia.org/wiki/Manicouagan_Reservoir proclaiming the 214±1 Ma. impact is "12±2Ma before" the "213Ma Triassic-Jurassic extinction event." What, wait a minute. Why is the difference between 214Ma and 213Ma equal to 12±2Ma.

Michael O. Shaver

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This is going to be a good 7,000 view entry....

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I have done a preliminary overlay, the 74M yr overlay (-65Myr offset) is accurate out to the estimated 285M yr chart length. The 29M yr overlay holds out until about 200Myr when accuracy is lost. You can see the 74M yr extinction interval starting from  the 65Ma. Intermediate extinctions follow the 29Myr meteorite frequency (-10Myr offset) associated with Galactic Plain intercepts. I am waiting for a more detailed extinction chart than the very poor resolution chart shown abovebefore I post the chart and meteorite overlay.

I cannot conjecture what happens at about 200Myr to the Galactic Plain Intercept meteorite association with geologic extinctions. Since the dataum is based on freguency and offset, perhaps the accuracy is suspect, as we can see significant spread in the 29Myr spectrum.

The extinction chart is an overlay of two intervals, 74Myr(-65Mo) and 29Myr(-10Mo) intervals.

Legend:

Mo = Million Year Offset.

Ma = Million Years Ago

PS: I will wait a week before anouncing the 7,000 view level.

Reference: 2005JULY figure p44, 'Earth's Fossil Record'. Readers may test this by scaling the 74Myr starting at the K-T impact, to find the two other peaks shown. The 29Myr starts on the first peak, and extends up to about 200Myr (where did it go?). The 74Myr interval is dominant out to the Cambrian Boundary 505Ma. I am not claiming exclusive meteorite earth impact causation, rather another more general correlation with the Galaxy Arm Intercept 74Myr period.

defunct link.... 

link http://www.killerinourmidst.com/grafix/Extinctions.gif

Ok next I will overlay on this source.

It is associations like this that induce insomnia. In short, charts of biomass levels don't associate when one type replaces a competing type, particularily without a general loss of life (biomass). The Geologic Period criteria is sensitive to this transition (and others).

2006MAR27 Working on the overlay presentation. Earning a wage has present priority...

2006APR2 Preliminary Overlay seen above, on top of the referenced chart. Two intervals (144M and 286M) are uncovered by an biomass reduction. Working on the associated details....

144M Jurassic: a warm period of expansive ocean, and ended with the contraction of the Ocean. It was a period of Pangaea (super continent), and ended with its breakup, extending into the Cretaceous  Period.. Thus, we may surmise, like many of the periods, it ends in a temperate iceage, changing the fauna and stressing the biomass. Biomass changed and adapted, species changed, biomass survived. Extinction was by species replacement. Jurassic end could be a global temperature change, caused by Galactic Arm dust. The Jurassic period ended some species, but many survived, and moved to more temperate climates. This was not an extinction, rather a transition emphasized with a whimper.

286M Pennsylvanian: working....see Galactic Geologic Interval Hypothesis:ICEAGE section of this thread. Asked and answered

As I promised earlier, I will explain the arm interception rate for an expanding 20KM/sec solar apex point. Although the solar apex group moves at about 20KM/Sec, these stars existing in the arm, do not define the arm movement. The blue variable stars lifetime ends before they traverse even one arm width. The hydrogen (dust) flow defines Galactic Arm structure. Using the 20KM/Sec was the starting point for this hypothesis, yielded a 2.6 arm (74My) interval between our solar orbit and the ends of the central bar. Recent published datum indicate that hydrogen(dust) flow is 26KM/Sec. This is 819936000KM/Yr (Light Year = 9.46091E12 KM) or 6413.3 light year distance. This results in 1.949 arm to arm spaces to the Central BAR ends.

Even though Figure One shows three intervals between the Orion Arm and the End of the central bar; two is a perfect fit because: as we travel 74My to the next arm, we are intercepting arms from a radial at 74My in a negative time differential. This is akin to picking up an extra days travel when circumnavigating the world moving slowly in a Easterly direction. So look at figure one, print a copy if you like. Positive time is depicted by counter clockwise relative sun arm rotation even though everthing is rotating clockwise. (this depicts outward arms movement relative to our Sun.) The next arm we intercept will be the Sagitarius Arm. The last arm we intercepted was the Perseus Arm. We are in the Orion Arm, which is expanding past us. Hope your dizzyness subsides a little....

 

And happy 7800 views!

 

Further editing follows.

The figure depicts the intercepts for two actual Sun orbits around the Galaxy. That means the central bar rotated three times in 440My, or at a rate 1.5 times our galactic orbital rotation rate. Remember, we are looking at the angle of the Central Bar, not the stars in the hydrogen flow. Aha, a testable prediction is made. I will endeaver to find sources on this.

 

Another confusing observation about this map can be made. It is only by rare coincidence we pass through all the arms in two orbits that this figure maps directly to the observed Galactic structure. Imagine if you will, trying to diagram this if that was not the case! Ah the poor souls in other Galaxies trying to render this hypothesis when this is not the case. If you have ever read Feynman you would understand I am concerned and possibly critical of this observance. Feynman : "You know, the most amazing thing happened to me tonight. I was coming here, on the way to the lecture, and I came in thought the parking lot. And you won't believe what happned,. I saw a car with license plate ARW357. Can you imagine? Of all the millions of license plates in this state, what was the chance that I would see that particular one tonight? Amazing!" Six Not so Easy Pieces c1997, Penrose.

 

I think all of the topic is covered. Does anybody see any flaws in the hypothesis. I think the datum need to be re-organized a bit, as it is spread around a little.

Any suggestions on it's presentation very welcome.

morbas

morbas wrote:

I think all of the topic is covered. Does anybody see any flaws in the hypthesis. I think the datum need to be re-organized a bit, as it is spread around a little. Any suggestions on it's presentation very welcome. morbas

NASA is planning satellites to look for signs of life by looking at life enriched oxygen content in the light wave spectrum of planets (out to 50 Light year sensitivity). Astronomy May 2006 "Searching for signs of life" Seager.

From http://www.sciencedaily.com/releases/2005/01/050121101514.htm given by stars4life: Mr. UW Editor: Why would the loss of oxygen (during and after a great extinction) be a surprise?  I wonder if the article is proclaiming the result of extinction is the cause...

And then looking in the original report, (http://www.uwnews.org/article.asp?articleID=7601) by Peter Ward, [this article was recently taken off the web] evidence supports a metereorite strike, based on buckminsterfullerenes, not iridium deposits like the KT event. Different kind of meteorite. Leading to volcanism extinction causation. According to Szerkas, the climate leading to the Permian extinction was warming; he didn’t indicate a thermal runaway. The extinction per portably occurred over several million years perhaps in somewhat different times. Of course, the geologic evidence for this is in dispute, as it depends on association of three layers to three different time periods(reference 2: When Life Nearly Died). Could this have been a single layer when deposited? So the Peter Ward question is, are there buckminsterfullerenes in those three layers, acting as a common marker.

Yes, the volcanic activity was elevated during the Permian Extinction. As a parallel, the volcanism was indicated during the KT event as India collided with the Asia continent. I believed (at the time) the asteroid strike and volcanism in diametric opposition were connected. Although I could never put them together. I kind of avoided the topic when a PHD indicated that it was possible the impact caused a trillion tons of ocean bottom (at the diametric opposite point) to jump into sub-orbital trajectory.

I will volunteer a long shot. The Coal formations of the post Pennsylvanian Period, still in shallow substrata, were ignited by the Australian Meteorite, burning in the shallow substrata, and causing a global thermal run-away by elevating the CO2 causation. This is still an astronomical event.

Extinction Event Targeting Information: The United States with 26 percent and the Former Soviet Union with 23 percent account for nearly half of global coal reserves. China (12 percent), Australia (8 percent), Germany (7 percent), South Africa (5 percent), and Poland (2 percent) also have significant amounts of the world's recoverable coal reserves.

Thanks stars4life. I felt a great sense of discovery reading this paper.

Research

http://www.sciencedaily.com/encyclopedia/Geologic_temperature_record

"Recently, Shaviv has proposed that the motion of the solar system through the galaxy has an effect on global climate. As the solar system moves in and out of the spiral arms of the galaxy, the flux of cosmic rays will vary by approximately a factor of 3. Since such cosmic rays play an important role in ionizing the atmosphere, it is plausible that such variations can influence climate, and may be able to explain the 140 million year quasi-periodicity observed in temperatures during the Phanerozoic. The biggest present weakness in this theory is that the time period between encounters with galactic spiral arms is only poorly constrained by existing astronomical observations."

Shaviv is certainly in line with GGIH. Of coarse, our methodologies are slightly different. GGIH includes a wider range of sciences. Twice 74M is close to 140M years. ASTRONOMY, please publish GGIH.

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Thoughts...

I am coming to the belief that the Permian Extinction as a major global warming event. My sources (Czerkas et al) indicate the Permiam period was one of general global warming leading to the greatest extinction event(s) of life on Earth. I have a select view that we were between Galactic Arms, in the clearest area of the Galaxy, where Solar power was at a maximum on Earth. Secondly, evidence indicates the Continental Drift Land Mass configuration was also contributory to this effect. Recent Metereorite impact discovery indicates an Impact in Australia which has (presently something like 8% of the Coal Reserves in the world). It may be that the burning of this reserve caused a Global Warming Event causual to the worlds greatest extinction (killing 95% of all life). It could account for the buckminsterfullerenes.

Presently we are in the ORION Arm, in the Orion Hydrogen Dust flow, which by some accounts, has dimmed the incident solar power by as much as 30% (somewhat contested). Our global industrial warming has not only overcome this effect but driven it into global warming. I would like to probe this gas dust flow to see if there are any fluxuations in the wind. By my calculations, we will be in the Orion Arm another 8My. However, our present velocity vector is upwards out of the Galactic Plane. I understand this will not take us out of the Orion Arm thickness. Still, we should probe the area to check for variations in the solar wind. Not much we can do presently to curb our industrial pollution tho. If the wind were to stop presently, we may overheat.

IMHO (In My Humble Opinion). MORBAS

Coal Reserves of the World:

The United States with 26 percent and the Former Soviet Union with 23 percent account for nearly half of global coal reserves. China (12 percent), Australia (8 percent), Germany (7 percent), South Africa (5 percent), and Poland (2 percent) also have significant amounts of the world's recoverable coal reserves.

Note:

Buckyballs are self assembling in a carbon rich plasma. A Meteorite impact in a coal rich field has all the ingredients to make these natural jewels.

I have only one beef with your hypothesis.  I read this entire thread so I hope I don't misquote you.  You have speculated that a planetoid collision with the Sun is possible correct? If this is true then theoretically so is the interception of these planetoids as the sun passes through the arms. As a matter of fact I think it has happened a few times, These planetoids probably were intercepted long before they reached the Sun by our Gas Giants. Which has added to thier stock of moons.  Possible? I say yeah most definatly.  I can buy that if what you're saying is that when we pass through the arms life is catastrophically altered and stabalizes on the other side. If this is true, the only way to survive would be to system hop to stay in the safe zone between the arms correct?  I'm just wondering if we have passed through these arms so many times in the last 5by why is there not more than 9 planets?  Surely the sun would've adopted a few more bodies than what we have now. There should be more than one asteroid belt if this was the case also.  This leads me to believe that the enviornment inside the arms isn't as chaotic as you are leading me to believe. The radioactivity is another issue.  Another thing is if we can see light years beyond our Solar system shouldn't we be able to see this wall of impending doom long before we ever reach it?  I have to think we're millions of years out and if so by then I think we will have destroyed ourselves and long saved the arms of doom the trouble.

Critical_Mass wrote:

I have only one beef with your hypothesis. ...You have speculated that a planetoid collision with the Sun is possible correct? If this is true then theoretically so is the interception of these planetoids as the sun passes through the arms. As a matter of fact I think it has happened a few times, These planetoids probably were intercepted long before they reached the Sun by our Gas Giants. Which has added to thier stock of moons.  Possible? I say yeah most definatly. (BEEF#1) I can buy that if what you're saying is that when we pass through the arms life is catastrophically altered and stabalizes on the other side. If this is true, the only way to survive would be to system hop to stay in the safe zone between the arms correct?  (BEEF#2)  I'm just wondering if we have passed through these arms so many times in the last 5by why is there not more than 9 planets?  (BEEF#3) Surely the sun would've adopted a few more bodies than what we have now. There should be more than one asteroid belt if this was the case also.  This leads me to believe that the enviornment inside the arms isn't as chaotic as you are leading me to believe. (BEEF#4) The radioactivity is another issue.  Another thing is if we can see light years beyond our Solar system shouldn't we be able to see this wall of impending doom long before we ever reach it?  (BEEF#5) I have to think we're millions of years out and if so by then I think we will have destroyed ourselves and long saved the arms of doom the trouble.

BEEF#1: And scientists are still trying to determine if Uranus is captured. Could be more moons are captured. I Imagine the odds against that are huge.

BEEF#2: Life forms tend to dominate and stabilize dominance. Without extinctions, intellectual life would not have evolved. The Permian extinction killed 95% of all life forms. Life still filtered through it. Ogranic life is spontanious.

BEEF#3: I count ten planets, although some still count nine. Panetary intercepts are rare and uncounted.

BEEF#4: Reference [6] Mass Extinctions and the sun's encounters with spiral arms; Leitch & Vasisht (1997). (140M period presumed four spiral arms.)

reference: http://www.sciencedaily.com/encyclopedia/Geologic_temperature_record.

reference: Comet Storm A'Coming Astronomy Magazine. I coverd this in one of the topics in this very thread.

We are in a wall of doom, the Hydrogen dust storm (26Km/s) in the Orion Arm.

BEEF#5: Few extinctions occurr over periods of less than one million years. The Permian took multiple millions of years. Even the KT boundary may have been over a million years (the jury is out). I think self extermination is slightly outside the domain of this hypothesis simply because we are the only intellectual industrial life forms to have inhabited Earth.

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Critical_Mass wrote:

Ok I had a few beefs I guess, sorry. I gues the main beef was just that the Sun should be capturing more bodies if this enviornment you speak of in the arms is as chaotic as you make it seem.

Ok, can you calculate the odds of such a capture. Hint, assume a 22KM/s relative velocity out of the APEX point vector. If you can, then apply for employment with NASA. They have muffed orbiting MARS with retro-rockets and state of the art computers.

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Critical_Mass wrote:

A few questions. How long do we stay in the Arms? Suns gravity? Probability of objects that are stationary or move at a velocity considerably less than the Sun? none, slight, probable, very probable, great

1) 8min to 15max My. I am studying this variation because it lends itself to the standard deviation limits of the Geologic Periods. I suspect that the Solar System Galactic Plane 29My interception period is responsible. A plot of the Periods shows that the Periods are bounded by this intersection of the 74My Galactic Arms and 29My Galactic Plane of the Ecliptic.

2) One solar mass. My apologies, this is a glib short reply. What exactly are you looking for?

3) Inverse relation ship with intersection rate. Most of the bodies orbiting the Galaxy move with the Solar System. The variable blue giants move at 22KM/s out of the Apex point. It is the Hydrogen dust flow that defines the arms. Good question, although if this peaks your interest, it may be your life's time calling.

Although, me thinks, you may derive approximations using meteorite datum. I have computed periodicity charts shown in this thread. I have found computed 74My (-65My offset) and 29My (-8My offset). For the life of me, I don't see any other resonances as reported by other researchers. This spurs me on to show how these beat together to yield the +/-8My standard deviation of the Seven Geologic Periods. That is my near term calling.

Ok I had a few beefs I guess, sorry. I gues the main beef was just that the Sun should be capturing more bodies if this enviornment you speak of in the arms is as chaotic as you make it seem.

A few questions.

How long do we stay in the Arms?

Suns gravity?

Probability of objects that are stationary or move at a velocity considerably less than the Sun? none, slight, probable, very probable, great

 

 

 

 

 

A little while back, I thought 7,000 was a big mark. It was, and I cannot keep up with the readership. I say folks, teamwork is always accepted. I appreciate any criticism and review comments, privately or otherwise.

And every so often, I find something worth a glib moment

Greetings,   I would like to make a proposal that we have entered a New Geologic Era. After considering the impact that computers and information technology have had on the world I think it is time for a change.In the past we looked at fossils to see what changes took place over time. Now change and evoloution are going on at an ever increasing rate. The internet and intranets have fundamentally changed the world and affect all species including man either directly or peripherally. Even the movie technology has brought dinosaurs into electronic reallity. Therefore, I propose that the Cenozoic Era is over.We are now in the Cyberzoic Era.The exact time of the tranition to be worked out by professionals who are much more qualified then me to determine its actual beginning. The first period might be named Spelbergian. This new era would reflect the evolution of humans into cyberspace. A new field of electronic paleontology would be created to gather fossil evidence from this new era. I submit this proposal for your review. Long live the Cyberzoic!!                                                 Sincerely,                                         Bob Boscarelli                                         bosco@boscarelli.com                                         http://www.boscarelli.com

Well there it is folks, welcome to the Cyberzoic Era

Charts showing an analysis of the 74My interval meteorite energy frequency.

Left Mouse Click (on the image) to unfold.

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and the 29My interval meteorite energy frequency

Left Mouse Click to unfold image

both of these charts span the complete interval (74My and 29My) and show the offset of the impact energy from our present day into the past (left to the right). By scanning from the right to the left,  the charts project the future. These are detailed analysis of the intervals found on a global search algorithm of the entire frequency spectrum shown earlier indicating 74My (arm intersect) and 29My (galactic plane intercept) energy peaks.

Since these were indicated by the global search, I think this precludes alias in these detailed scans. These support my prognosis that two intervals define extinction history of 29My (galactic plane) and 74My (Galactic Arm). I have also looked in detail for the beat of these two intervals and think they show the 74My interval being pushed around by the 29My interval to the extent that recorded Period Boundaries overlay 29My intervals within the 74My +/-8My Arm intercepts region !

The program that generated this is (ug...QuickBASIC) and can be requested for your indendent analysis/verification. I had an composite and will regenerate it in the near future. Email me through ASTRONOMY messaging (you will need to be a member). While your at it rate the OP.

 

 

 

I am beginning the GGI Theory paper. The present abstract (above) edited to include an intermediate arm global warming correlation . The Theory will end with the Pre-Cambrian terminator, as this is the start of multiple celled life preeminence. A preliminary abstract emailed to letters to the editor...

--------------------2006 MAY 11-------------

The MilkyWay is a four arm structure, with the Orion and Shaver arm segments emerging to give it six arms at our 26000Ly radius. Since it is a central bar structure, a mirrored arm structure is most likely. A particular arm dynamic is approximated, proof underway. Period by Period level review is outlined.

Astronomy 10,001 view level made.

------------------2006 MAY 29-----------------

The Period terminators are caused by multiple intercepts. The movement through the arms causes a global warming while between the arms, and global cooling while in the arms. Overlayed on this, the next most major terminator is the Galactic Plane intercept; Much so that the periods track the congruence of a plane intercept with movement through arms. I think global warming alarmists may have a smoking gun with The Permian Extinction. I am looking further.

www.nrao.edu/pr/2006/plume/

Astronomers using the National Science Foundation's Robert C. Byrd Green Bank Telescope (GBT) have discovered a huge "super bubble" of hydrogen gas rising nearly 10,000 light-years above the plane of our Milky Way Galaxy. They believe the gas may be driven by supernova explosions and the intense stellar winds from an unseen cluster of young stars in one of our Galaxy's spiral arms.” This giant gas bubble contains about a million times more mass than the Sun

Thank you Zorack for your new thread Milky Way has gas.
You bet it has gas, and lots more of it.

A hydrogen/helium/CO driven arm structure supports the concept that within the Arms, we have global cooling periods, and outside the arms, global warming periods (of eight plus or minus million of years each). Industrialization is overdriving the Orion Arm dust flow cooling effect..

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I propose this just a extragalactical gas super bubble, passing through the galactic plane. It's passage would cause a rapid star formation and associated supernova population surge that scientists beleive drive the bubble's escape. So, does the supernova population drive the gas outflow (somehow cause), or does the momentum of the gas drive it's escape velocity from the galaxy? Just it's passage cause star creation and increased supernova events.

Very preliminary evidence for a 300mile crater in Antarctica was spotted by the GRACE satellite.

See http://www.space.com/scienceastronomy/060601_big_crater.html for the announcements. Oh, and by the way, I could not bring up the large image on that posting, so I indexed through the original postcard image.

Left Click on Image to unfold

http://a52.g.akamaitech.net/f/52/827/1d/www.space.com/images/060601_crater_radar_02.jpg

Anxiously waiting for scientists to take core samples and publish confirmation dating on this possible impact. I presently believe that the Australian impact, if in a coal field, could have been sufficient for The Permian Extinction outcome given our midarm solar maximum. Neither of these impacts are confirmed yet. I have read research money is hard to get. If a representative out there is reading, I voice my support for this effort.