If there are black holes, are there white holes?

Question

I was with my friend today, and all of a sudden he asked, "Is there such a thing as a white hole? Because since there's matter and dark matter, a black hole needs an opposite." To be honestly, I thought about it all day and I wasn't sure. So is there really such a thing as a white hole?

Answer 1

Sorry to burst your bubble but there is no such thing as black holes.

All they are in fact, is where the light of the star has gone out because their life span is over.

Does a room not exist in your home when you turn the light out?

No it is still there but invisible until you turn the light on.

Black holes are a misconception that scientist name dead stars to lead you believe they are more intelligent than us.

Answer 2

no. the closest analogy would be a star.  

Answer 3

  IF A BLACK HOLE COLLIDES WITH A WHITE ONE YOU END UP WITH A GREY,

Answer 4

Sure.  Any source of light is an example of one.

Answer 5

People have speculated about this, but there is no reason to believe white holes exist. Not everything has an opposite or an inverse. For example, there is no repulsive gravitational force -- only attractive.

Answer 6

Nope. All holes are black. I could add... naah.

Answer 7

gop: Thanks for just proving that not only scientists, but the average person is smarter at physics than you because black holes do indeed exist, you just have no idea what they are.

White holes are nothing more than speculation. There is no reason to believe the exist, but it is speculation. Its a radical theory with very little reason behind it, but its an interesting theory non the less. I personally don't believe in an opposite to black holes, but that's just me. Not everything has an opposite despite the common belief that there is.

Answer 8

There has been much speculation about white holes, and your question caused me to do some reading on the subject.  When I first heard of the concept many years ago, I thought that a white hole was merely the "other end" of a black hole, and that matter sucked into a black hole would be spewed out (albeit not in any recognizable form) of the white hole.  I now see that that's not the case; this could only happen in a wormhole that doesn't contain a black hole.  Apparently that's incredibly unstable.  Don't worry...I don't fully understand it myself (and I pride myself in being pretty knowledgeable about astronomy and physics).

The short answer is that a white hole probably cannot exist in the real universe (although it is not mathematically impossible), and if it does, it's probably indistinguishable from a black hole.  I hope that helps.  Good luck!

Answer 9

That sounds kinda racist. Black holes only consume and White holes only give.

Answer 10

We don't know, yet!

Answer 11

White-holes are also called worm-holes or an Einstein-Rosen Bridge.

http://en.wikipedia.org/wiki/Einstein-Ro...