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Black Hole Blasts Neighbor Galaxy with Deadly Jet
Posted by
ScuttleMonkey
on Mon Dec 17, 2007 06:22 PM
from the no-star-system-will-dare-oppose-the-emperor-now dept.
from the no-star-system-will-dare-oppose-the-emperor-now dept.
butterwise writes to mention that astronomers have, for the first time, witnessed a super-massive black hole hitting a nearby galaxy with a "death-star-like" beam of energy. The story also has a video with simulations, pictures, and explanations. "The 'death star galaxy,' as NASA astronomers called it, could obliterate the atmospheres of planets but also trigger the birth of stars in the wake of its destructive beam. Fortunately, the cosmic violence is a safe distance from our own neck of the cosmos."
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Cosmic Rays From Galactic Black Holes 51 comments
dork writes in with word of a study that contradicts, at least for the highest-energy events, the recent conclusion that cosmic rays are probably formed in supernova remnants. The Pierre Auger Observatory in Argentina has announced that active galactic nuclei are the most likely candidates for the source of the highest-energy cosmic rays that hit Earth. The researchers found that the sources of these highly energetic events are not distributed uniformly across the sky, linking their origins to the locations of nearby galaxies hosting active nuclei in their centers. These galaxies are thought to be powered by supermassive black holes that are devouring large amounts of matter. The exact mechanism of how particles get accelerated to energies 100 million times higher than achievable by the most powerful particle accelerators on Earth is still unknown. The observatory has made 1% of its events available through a public online event display."
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Phew, good job it's far away (Score:2, Funny)
He Who Smelt It Dealt It (Score:5, Funny)
Re:He Who Smelt It Dealt It (Score:4, Funny)
Parent
Re:He Who Smelt It Dealt It (Score:5, Funny)
Parent
Re:He Who Smelt It Dealt It (Score:5, Funny)
AC: "Oh. What's it called now?"
Me: "Urectum. Here, let me locate it for you."
-kap
Parent
Re: (Score:3, Funny)
Urectum? From the sound of it, u probably killed em.
Possible names for the galaxies? (Score:3, Insightful)
Re:He Who Smelt It Dealt It (Score:4, Funny)
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One flaw... (Score:3, Funny)
Re: (Score:3, Funny)
Re: (Score:3, Informative)
The astronomers explained (Score:5, Funny)
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Eminent domain... (Score:5, Funny)
Old news (Score:5, Funny)
Re:Old news (Score:5, Interesting)
(Disclaimer: I'm not saying we've found any here on Earth, just that it's interesting to speculate about)
We'll never know...
SB
Parent
Won't someone think of the aliens?!! (Score:4, Funny)
That doesn't help the poor aliens living in that neck of the cosmos, you insensitive clod!
No anomalies detected (Score:3, Interesting)
Some people believe the universe is chock full of life, but this one is score for the skeptics. I remain a cautious optimist.
Re:No anomalies detected (Score:5, Insightful)
If there's a civilization that can shut down supermassive black holes at will then we'd know about it by now. Either because we're on the menu or we're needed to help clean the sewer mains on the black-hole-shutting-down supership.
Parent
Re:No anomalies detected (Score:4, Insightful)
"If you'd quit giving our transmitters dumb names like "pulsar" and instead listen to the dang things, you might learn a thing or two."
Parent
Re:No anomalies detected (Score:5, Interesting)
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Maybe its not even technologicaly and physically possible to protect yourself from something like that. At best, if there was a super high tech civilisation in that galaxy, they got their alien asses out of there. But even then, someone correct me if I'm wrong, but even if you have a ship capable of light speed, you better have had that technology LONG before the ray hit the galaxy to make it out in time.
Re:No anomalies detected (Score:5, Insightful)
Um, dude? That "death ray" has a significant scale relative to the size of a galaxy, all of it traveling at (x-rays, gamma rays) or close to (electrons) the speed of light. For one any species caught in its path wouldn't see it until it hit them, and two even if they knew about the beam it isn't clear that they could do anything about it except hide underground for thousands of years or bug out to another part of the galaxy, which itself would require faster-than-light travel. To actually redirect or shield themselves from the beam at a degree that would be visible in our telescopes would require technology on a scale that we can't even dream of.
I find it highly odd that you would be skeptical of the existence of life arising elsewhere in the universe (which while we have no idea what exactly it takes, we know is possible because it has happened at least once), because of the apparent lack of faster than light travel (which according to our current theories is impossible) or even more miraculous feats of what amount to complete science fiction. We can't say that it could ever even be theoretically possible to be "sufficiently advanced" to pull off what you propose, much less if humanity could ever attain it.
Have you seen the Hubble Deep Field [hubblesite.org]? That's an extremely narrow view of the sky, and it's completely stuffed with galaxies. And because this one particular galaxy has not, as far as we can tell, birthed a civilization with Q-like [wikipedia.org] powers, you're questioning whether there could be life anywhere else out there at all? That's literally the oddest form of skepticism I've ever heard.
Unless this is just dead-pan humor. I'll admit that I have problems detecting it when done with subtlety.
Parent
Re:No anomalies detected (Score:4, Insightful)
To paraphrase Carl Sagan's Contact, if there isn't any intelligent life out there, it sure would be an awful big waste of space.
Parent
Real Leap forward: Telescopes (Score:5, Interesting)
"Only now by combining the images of radio telescopes, the optical and ultraviolet eyes of Hubble Space Telescope and the Chandra X-ray Observatory, can researchers put together the entire violent story about this intergalactic mugging.
The coordinated use of such an array of diverse and powerful telescopes is one of the unheralded triumphs of modern physics, Tyson said. "This is an example of the triumph of that exercise." http://dsc.discovery.com/news/2007/12/17/galaxy-black-hole-02.html [discovery.com]
Just the fact that we can observe such a dramatic event is awe-inspiring.
Re: (Score:2)
Yes, the biological human eye does not compare, but I consider our technology to be a part of us. After all, humans aren't really that we
Re: (Score:2)
SB
Re: (Score:2)
That's the third time this month
SB
the universe could get caught in a drive-by (Score:4, Insightful)
1.4 billion light years (Score:4, Interesting)
and then goes on with: The offending galaxy probably began assaulting its companion about 1 million years ago...
If the distance is 1.4 billion light years, light from the event should be taking that much time to reach us, and something that happened only a million years ago should not be visible yet.
What am I missing here?
Re:1.4 billion light years (Score:5, Informative)
It's just imprecise language.
SB
Parent
Re:1.4 billion light years (Score:4, Informative)
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Re: (Score:3, Informative)
That is No Deathray Kids (Score:3, Funny)
Re:Way to be taken seriously.. (Score:5, Funny)
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Re:Way to be taken seriously.. (Score:5, Funny)
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Re:Way to be taken seriously.. (Score:5, Funny)
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Re:Way to be taken seriously.. (Score:4, Funny)
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Re: (Score:3, Funny)
And how is that women are not turned on by statements like that, I'll obviously never know...
Re:Way to be taken seriously.. (Score:5, Interesting)
Parent
Re: (Score:2)
Well, I have a degree in physics and I've never heard it pronounced "kwork", everyone pronounced it as it's spelt, as "kwark". Maybe it's a UK/US thing?
Speaking of quarks though, I like the names - charm, strange, up, down, top and bottom (which were called truth and beauty at first; I still think they should have stuck).
Anyway, scientific nomenclature is a serious business - but scientists are people too...
Re: (Score:3, Funny)
Both are correct as long as you mean kwork as kw-orc. If you mean that like kw-irk, then that's the word quirk, which has a very different meaning.
Re: (Score:3, Funny)
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Re: (Score:3, Funny)
Since hackers got at it, it now pronounces it as 'penis'.
Who said physics was boring?
Wrong, astronomers use fiction all the time ... (Score:5, Insightful)
Your suggestion is laughable, astronomers use fiction all the time. Consider the names of the planets, some constellations, etc. I apologize if you believe in the greek/roman gods, you have to consider that most of us consider them fictional.
Parent
Re: (Score:3, Interesting)
Alternative viewpoint. (Score:2, Insightful)
Re:WTF ... (Score:4, Informative)
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