Why do we have so much information on black holes while only looking at them from thousands of miles away.?

Question

seems like there is a large area for dissapointing mistakes.

Answer 1

Not really, and actually the nearest black hole is TRILLIONS of miles away - thankfully. So there's no immediate danger of the earth or anything getting sucked into one.

We know what we know because largely of the math involved. This is the case for alot of astronomy. Because we understand math reasonably well scientists can make predictions and we can create computer simulations (something like SimCity or Civilization) only really more about stars and less about cities. So when they run these simulations sometimes if they setup the the simulated stars very very big, when they die they create these weird situations we call black holes.

One of these simulations predicted that the center of every galaxy should have a black hole. This is a great example where the scientists involved predicted that SO much energy would have to be involved that every time this black hole ate a very large bunch of other stars, a gigantic stream of radiation should shoot out like a searchlight from the top and bottom of the black hole because so much stuff was trying to get into the black hole that it couldn't all fit at one time - so all the stuff (really before it fell in to the black hole) would get really really hot energetic and create these mega jets of radiation.

Well the scientist was promptly ridiculed for a couple of years, Everyone including some very prominent scientists basically said nope - that doesn't happen. And then a couple of years ago, the Hubble Space started looking and what do you know.

http://hubblesite.org/newscenter/archive/releases/2000/20

Radiation streams coming out of almost every galaxy we look at.

Astronomy right now is doing ALOT of research and prediction and simlulations and then looking up into space to see if your predictions are accurate.

Sometimes, you have mysteries, like Gamma Ray Bursts these bursts occur across the universe, galaxies away and millions of light years from Earth (quadrillions of miles away) (which are also caused by stellar events) but we didn't know about how they were caused until just a few years ago.

We put satelites up to look for nuclear blasts from the soviet union (back in the day) and when we turned the machine on - we started getting hits almost right away , but not from russia from all across the universe and nobody could figure out how come that much energy could be created and find it's way to the earth.

That was when scientists put these two stories together and realized that you really couldn't create that much energy going in ALL directions at once but MAYBE it could be a stream of directed high energy particles pointed in the direction of the earth for just a few seconds, That was when scientists really confirmed that these things were real and fairly common and were the direct evidence needed to support the small group of scientists suggesting Mega Black holes and particle streams which were light years in length.

Answer 2

We do not have so much information on black holes. It is just that TV, radio, magazines and the Internet are always publishing stories about the subject. Do not confuse popular buzz on a subject with scientific knowledge. We know much more about the human genetic code, the planet Mars, or any number of other things than we know about black holes.

Answer 3

"The existence of black holes in the universe is well supported by astronomical observation, particularly from studying X-ray emission from X-ray binaries and active galactic nuclei. It has also been hypothesized that black holes radiate energy due to quantum mechanical effects known as Hawking radiation."
This, and more on black holes, from Wikipedia, the free, online encyclopedia at:
http://en.wikipedia.org/wiki/Black_holes

Hope this helps!

Answer 4

first and maximum nicely known, shelter what's in front of you. which skill do your activity and pay interest to the significant factors of your projects whilst deployed and don't enable your very own relationships at domicile distract you. As on your relationship at the same time with your spouse, it is going to artwork out. the two you the two would be waiting to get previous what is going on or you will no longer. in case you come back in a container it won't be counted the two way.