A black hole, according to the general theory of relativity, is a region of space from which nothing, including light, can escape. It is the result of the deformation of spacetime caused by a very compact mass. Around a black hole there is an undetectable surface which marks the point of no return, called an event horizon. It is called "black" because it absorbs all the light that hits it, reflecting nothing, just like a perfect black body in thermodynamics. Under the theory of quantum mechanics, black holes possess a temperature and emit Hawking radiation, but for black holes of stellar mass or larger this temperature is much lower than that of the cosmic background radiation.
Despite its invisible interior, a black hole can be observed through its interaction with other matter. A black hole can be inferred by tracking the movement of a group of stars that orbit a region in space. Alternatively, when gas falls into a stellar black hole from a companion star, the gas spirals inward, heating to very high temperatures and emitting large amounts of radiation that can be detected from earthbound and Earth-orbiting telescopes.
Despite its invisible interior, a black hole can be observed through its interaction with other matter. A black hole can be inferred by tracking the movement of a group of stars that orbit a region in space. Alternatively, when gas falls into a stellar black hole from a companion star, the gas spirals inward, heating to very high temperatures and emitting large amounts of radiation that can be detected from earthbound and Earth-orbiting telescopes.
"Astronomers have identified numerous stellar black hole candidates, and have also found evidence of supermassive black holes at the center of galaxies. After observing the motion of nearby stars for 16 years, in 2008 astronomers found compelling evidence that a supermassive black hole of more than 4 million solar masses is located near the Sagittarius A* region in the center of the Milky Way galaxy."
-qoute from british astronomer
-qoute from british astronomer
by SMEGHEAD61 June 23, 2010
Get the black hole mug.Creator of one of the worst songs to come out since Justin Beiber's "Baby"
Is also the winner for the MOST DISLIKED video on youtube. beating Justin Biebers "baby"
Is also the winner for the MOST DISLIKED video on youtube. beating Justin Biebers "baby"
by adisopfhaspiduhfpiuaw4hpthq9e April 18, 2011
Get the Rebecca Black mug.The phase in a white person’s life (usually around middle school) when he simply thinks that he is a black person, in which he’ll do everything a stereotypical black gangster would do including saying the n word, lying about doing drugs, and saying that he’s from the hood. Now it’s important to note that not every white person will go through this awkward stage of development so not every white person will understand
white person: I’m a real gangster in deze mafackin streetz. I blow 420 smoke errryday n*gga
friend: dude what the hell u can’t say the n word, you’re not black
white person: dafuq u talkin bout sayin I ain’t black, n*gga of course I’m black. Look at all deze hoes I have.
friend: bro, it doesn’t matter how many hoes u got you’ll never be black
white person: whateva u just jealous cuz u ain’t a real n*gga
friend: dude, u need to get out of this black phase you’re in it’s really starting to piss me off
white person: I’m not in a fucking phase I really am black
friend: Ok whatever u say.
friend: dude what the hell u can’t say the n word, you’re not black
white person: dafuq u talkin bout sayin I ain’t black, n*gga of course I’m black. Look at all deze hoes I have.
friend: bro, it doesn’t matter how many hoes u got you’ll never be black
white person: whateva u just jealous cuz u ain’t a real n*gga
friend: dude, u need to get out of this black phase you’re in it’s really starting to piss me off
white person: I’m not in a fucking phase I really am black
friend: Ok whatever u say.
by Dubiks April 11, 2019
Get the Black Phase mug.a complete retard that cant decide which seat to sit in, in her friends car as they drive in front of a green screen she also helps people to learn the days of the week she is also justin biebers twin brother and he is her twin sister
rebecca black says
Yesterday was Thursday, Thursday
Today i-is Friday, Friday (Partyin')
We-we-we so excited
We so excited
We gonna have a ball today
Tomorrow is Saturday
And Sunday comes after ... wards
I don't want this weekend to end
Yesterday was Thursday, Thursday
Today i-is Friday, Friday (Partyin')
We-we-we so excited
We so excited
We gonna have a ball today
Tomorrow is Saturday
And Sunday comes after ... wards
I don't want this weekend to end
by nick the fluzer May 16, 2011
Get the Rebecca Black mug.Uber-negro, a black man that greatly surpasses the qualifications to be black.
A black man apart of the lantern core with the ability to emit his blackness on others
A black man apart of the lantern core with the ability to emit his blackness on others
That guy there is suave, fast, a tall slim glass of dark chocolate, he is a black lantern
Its a static shock, its black panther, no bitch its black lantern!
Obama he is a true black lantern
Its a static shock, its black panther, no bitch its black lantern!
Obama he is a true black lantern
by black lantern September 25, 2009
Get the Black Lantern mug.Jenny: What happened last night?
Christy: You don't remember? You need to cut down on the booze...you keep blacking out!!
Christy: You don't remember? You need to cut down on the booze...you keep blacking out!!
by ghodsi January 14, 2008
Get the blacking out mug.When you're jerkin' it to some weird shit and your computer shuts off, leaving a black screen reflecting just your face.
I really had to reflect my life, and choices I made after I saw myself in the black mirror. Promptly plugged the computer back in and kept going.
by The Nightman inside me January 20, 2017
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