why do pelple think there is a black hole in our universe.?

Answer 1

There is billions of black holes in this universe spread over many galaxies.
You meant our solar system.
It's an old tale I believed, as in an old TV series called galaxies and stars which I watched as a kid 17 years ago and it was a concept that made me and other people interested but there is not.

Answer 2

Theory really. Between some of our histories greats minds and by the theories that they have, current scientist believe that the possibilities of Black hole would have to exist.

No one has ever seen a Black hole but only has seen evidence that there could be one. Much like we see the effects of wind and believe that there is air.

We have all seen how gravity works, the more mass the more there is gravity. Well the belief of a black hole is based on the fact that there is an incredibly huge mass of matter out there (much larger then our sun) and so it has an incredibly strong force of gravity that even effects things like light (which is why we cant see them as they pull in all light in the area.)

There are voids or black areas in space that emit strange rays, scientist have observed these things. These Scientists have assume based on theories of gravity and physics that that those areas are black holes.

Answer 3

We have Black Holes here on Earth. Scary don’t you think?!

The Large Hadron Collider (short LHC) is a particle accelerator and collider located at CERN, near Geneva, Switzerland. The LHC is funded and being built in collaboration with over two thousand physicists from 34 countries, universities and laboratories. It is currently under construction, and scheduled to start operation in 2007, when it will become the world's largest particle accelerator. The tunnel is 27 km in circumference, and is located underground at a depth ranging from 50 to 175 m. The tunnel actually crosses the border between Switzerland and France, although the majority of the enclosed territory belongs to France.

The LHC will collide hadrons (protons, to be exact) in the 27 km circumference tunnel previously used by the LEP, an electron-positron collider. The protons used will have an energy of 7 TeV each (total collision energy of 14 TeV) (which is roughly equal to each proton having the kinetic energy of a flying mosquito). Five experiments will be built to utilize the LHC. Two of them, ATLAS and CMS are large, "general purpose" particle detectors. The other three (LHCb, ALICE, and TOTEM) are smaller and more specialized.

The LHC can also be used to collide heavy ions such as Lead (Pb) (collision energy will be 1150 TeV).

Prior to being injected into the main accelerator, the particles are prepared through a series of systems that successively drive up the particle energy levels. The Proton Synchrotron (PS) consists of two linear accelerators generating 50 MeV, the Proton Synchrotron Booster (PSB) at 1.4 GeV, and the Proton Synchrotron ring (PSR) at 26 GeV. The Low-Energy Intector ring (LEIR) will be used as an ion storage and cooler unit. The Antiproton Decelerator (AD) will produce a beam of anti-protons at 2 GeV, after cooling them down from 3.57 GeV. Finally the Super Proton Synchrotron (SPS) can be used to increase the energy of protons up to 450 GeV.

The size of the LHC constitutes a exceptional engineering challenge with unique safety issues. While running, the total energy stored in the magnets is 10 GJ, and in the beam, 725 MJ. Loss of only 10−7 of the beam is sufficient to quench a superconducting magnet, while the beam dump must discharge an energy equivalent to a considerable concentration of explosives.

It has been predicted by Savas Dimopoulos and Greg Landsberg that if the scale of quantum gravity is near TeV, then the LHC may produce black holes. Due to a concern for public safety, CERN performed a study to investigate whether dangerous events such as the creation of micro black holes, strangelets, or magnetic monopoles could occur. The report indicates that none of these events will pose any risk: micro black holes are specifically stated to be harmless due to the Hawking radiation process. Frank Wilczek at Princeton University has stated in an article in Scientific American that cosmic ray collisions occur at much higher energies than may be found in manmade particle accelerators today, so it is unlikely that a particle accelerator would produce a dangerous black hole. However, some physicists and members of the general public remain concerned about the safety of the LHC. Wilczek states that strangelet creation and expansion is very improbable but not impossible. John Nelson at Birmingham University stated of the RHIC that "it is astonishingly unlikely that there is any risk - but I could not prove it." In academia there is some question of whether Hawking radiation is correct.

Answer 4

Black holes are predicted by Einstein's General Theory of Relativity. General Relativity has been tested with incredible precision, and has been found to be accurate. Many other predictions of general relativity have been shown to be true.
Satellites such as HEAO-A,B&C, Chandra and even Hubble have made observations strongly indicating the presence of Black Holes as well.

Answer 5

Mostly because there is a black hole in our universe

Answer 6

Black holes can be inferred indirectly from gamma rays radiating from matter that falls into the black hole.

Also some star orbit round the black hole, and have been seen to oscillate around it, eg Cygnus X1.

Answer 7

It is something that can not be seen, which is why it is labeled as black. However, the reason it cannot be seen is because the object is soo massive (therefore having an incredible gravitational field) that it sucks everything into it, including light. Therefore, when scientists are looking into space, they see these "holes" because there is no light coming out of the object.

Answer 8

OMG don't you mean "galaxy"?

A universe contains billions of galaxies, and in each of those galaxies there's a black hole in the center with billions of stars moving around them, and our sun is one of those billions of stars. Those stars may have their own planets. Some of those stars even HAVE THEIR OWN STARS circling them. Some stars actually wobble around their own huge planets! Some of those stars are very messed up and exploding while others are nice and calm like our own.

The stars you see in the night sky are the stars closest to us inside the Milky Way Galaxy, which is the galaxy our star is in. On a hot day, the starlight from the "sun" and its radiation can burn you!

Broaden your mind, the universe is much bigger than what you see with human eyes on a single small planet.

Answer 9

Because we have observed light and matter/dust avoiding or being inexpilicably drawn towards areas of space where there "appears" to be nothing at all. Like big vaccums that pull things towards them...Do they exist? I'll tell you what, you go first. Just sneak up to it and if it doesn't suck you into it and and spit you out on the other side of the Universe, we can cancel the rest of the chat.

Answer 10

because a black hole is named black hole. earth is part of the universe and i can see black holes in my desk.