the theory of micro/virtual black holes is relatively new, and is perhaps more related to particle physics than to actual astronomy.Cleril said:I do know what a black hole is, seems my Astronomy class didn't educate me very well so perhaps I am not well versed in black holes. I was unaware I needed a degree on Astronomy to make a post in this particular topic.
Solar Tsunami Inbound!
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hate to be the bringer of bad news, but this is eventually going to happen between the milky way and the andromeda galaxy...Anoctris said:One of my favourites here - Galaxies that are 'crashing' into each other. Phew! Wouldn't want to see their insurance premiums in a couple of billion years.
This was pretty neat - http://news.yahoo.com/video/science-15749654/huge-star-discovered-20991377
And I've got this book about space at home (which I can't read anymore because it scares the hell out of me), which says that somewhere in the galaxy (can't quite remember) there is star that is hurtling through the cosmos like a comet. W..T..F...
I think this it here - http://science.nasa.gov/science-news/science-at-nasa/2007/15aug_mira/
SPACE... it's fucking scary.
Seriously, someone send some monkeys up into space and let's test this shit out!Doclector said:
Even more seriously, humans + cosmic radiation would most likely result in things like severe cancer, genetic abnormalities and/or mutations causing extreme pain, disfigurment and/or death.
You might go all elastic stretchy Mr. Fantastic-like, but your bones and internal organs-including your brain-would in all likelihood also lose the ability to retain their shape and you would become a lifeless mass of flesh and tissues.
You might become a 'Human Torch'...and then burn yourself to nothing but a pile of ashes the first time you 'flame on'.
You might be able to turn invisible...or just parts like just your skin turn invisible or your skin and muscles so you walk around with your bones and internal organs showing.
You might have ultra rock hard skin..and be unable to move. The pressure from having a extremely heavy and hard mass as your epidermis layer crushes your internals and bones and/or the shock of the change kills you.
Solar/cosmic radiation is crazy like that hehe...more likely to kill you in strange ways than provide you with superpowers...anyone else think Mr. Fantastic's name is kind of dumb in an unfitting and generic way?
it's so beautifulAnachronism said:I heard about this; apparently it's going to cause every electrical appliance on Earth to fail, causing us to be plunged back into the Dark Ages. Presumably this means that the Sun's power rating will be well over 9000 when it happens.jez29 said:
My favourite thing about space? Probably the sheer mind-boggling immensity of it, because that means that the odds of us being alone in the universe are astronomically (har har) unlikely. I long for contact with extraterrestrial life. As long as it's not the Borg, because that would be a very bad thing.
Also, the Eye of God nebula. It's just amazingly beautiful.
It's like the Middle Earth of space.
Haha, opening sentence made me laugh.BonsaiK said:
Damn it, I hope to go into physics for university and it's REALLY hard for me to choose a favourite thing... maybe the constantly expanding plane of the universe. That gives me nerdgasms.
well look at it this way: it will happen in a time where our sun is dying. on the off chance we don't get destroyed by celestial collision, we might actually find a better, younger star than the sun to orbit.Anoctris said:Sonofabitch!theklng said:hate to be the bringer of bad news, but this is eventually going to happen between the milky way and the andromeda galaxy...Anoctris said:One of my favourites here - Galaxies that are 'crashing' into each other. Phew! Wouldn't want to see their insurance premiums in a couple of billion years.
This was pretty neat - http://news.yahoo.com/video/science-15749654/huge-star-discovered-20991377
And I've got this book about space at home (which I can't read anymore because it scares the hell out of me), which says that somewhere in the galaxy (can't quite remember) there is star that is hurtling through the cosmos like a comet. W..T..F...
I think this it here - http://science.nasa.gov/science-news/science-at-nasa/2007/15aug_mira/
SPACE... it's fucking scary.
Who the hell is driving this thing?
Like the other guy who derailed your tiny black hole idea, I must say that a black hole of any size between MASSIVE and MORE MASSIVE would not have the stability to exist.Deadlock Radium said:
There exists a "Schwarzschild radius" for every object, describing the radius which the mass of said object must be within in order to become a black hole. The Earth's is 9 mm. While it is possible that a black hole could exist at this size, there is a phenomena called Hawking radiation (yes, like Stephen Hawking) which describes a emission of particles due to quantum effects from all black holes. This emission robs the black hole of its mass, causing it to cease to be a black hole. The smaller the black hole, the easier it is for the emissions to escape, the faster the black hole shrinks.
Black holes "evaporate." This is why the particle accelerator at CERN will not destroy the world with a micro black hole. This is why one will not float into your room.
Also, black holes do not "suck." They have gravitational attraction just like all matter, only they are denser. When a star becomes a black hole, it does not dramatically change the behavior of the surrounding stars. They do not begin to fall into the newly formed black hole.
Its mass, having not changed by a significant margin from when it was not yet a black hole, would have approximately the same gravitational effect on the surrounding objects. So long as you stay outside the event horizon (the Schwarzschild radius) of the black hole, you can act as though it is a normal object. Just one with EXTREME mass. The chances of one hitting the earth are so remote... let me put it this way...
Space is big. 99.99(maybesomemore)% of the galaxy is empty space. So much so that if two galaxies collided (as they sometimes do) it's entirely possible there would be NO stellar collisions. It's FAR more remote a possibility that there would be any planetary collisions, being so much smaller than stars. And that's BILLIONS of star systems colliding with BILLIONS more. The next time that happens is in about 5 billion years, when Andromeda finally hits the Milky Way. The chances of even a LARGE black hole swallowing our planet are so remote we might as well fear our planet being swallowed by a giant space cat.
As to what is on the other side of a black hole, probably nothing cause it's just a singularity. Possibly a wholly separate big bang, spawning another universe. Possibly a "white hole" somewhere/when else in the universe, or in another universe entirely. Possibly that giant space cat. Who freakin' knows?
Don't worry. Galaxies are mostly empty space. Even with many billions of stars involved, it's entirely possible there won't be ANY stellar collisions. Even less likely there will be planetary ones.Anoctris said:Sonofabitch!theklng said:hate to be the bringer of bad news, but this is eventually going to happen between the milky way and the andromeda galaxy...Anoctris said:One of my favourites here - Galaxies that are 'crashing' into each other. Phew! Wouldn't want to see their insurance premiums in a couple of billion years.
This was pretty neat - http://news.yahoo.com/video/science-15749654/huge-star-discovered-20991377
And I've got this book about space at home (which I can't read anymore because it scares the hell out of me), which says that somewhere in the galaxy (can't quite remember) there is star that is hurtling through the cosmos like a comet. W..T..F...
I think this it here - http://science.nasa.gov/science-news/science-at-nasa/2007/15aug_mira/
SPACE... it's fucking scary.
Who the hell is driving this thing?
Yes they are.AugustFall said:
Well, space is actually something, to be totally accurate. Space-time, the universal medium, has quantifiable curves in it caused by gravity and other things, like the curvature of the universe. The curvature of the universe is sorta like the curvature of the Earth. It seems flat when you look at it, but take the time to measure and you will see that the surface of the Earth is a finite quantity.AugustFall said:
Much like the Earth, space is finite. It started off very small at the beginning of the universe, and has continued to expand, allowing the matter in it to get very spread out, allowing for all the complexity we observe today. Imagine a balloon inflating, and imagine space as the surface of the balloon. That's basically what happened. The big bang wasn't an explosion of matter into space, it was the explosion of SPACE-TIME into existence.
There's no edge to space, but it doesn't go on forever. You'd eventually curve back around.
Whys it gotta be a black hole.... MAN YOU RACIST MAN.... no im just kidding. But this is a true statementCleril said:
Just considering the fact that a black hole the size of a car would last for mere milliseconds before evaporating.Cleril said:
Also, I would like to point out:
Understatement of the year. That's more of an explosion than every single nuclear warhead developed in history could create! If I remember my astrophysics right that is...jez29 said:
