Not to worry, Kirk will save us ..... (right after the pregnant pause, with angst.)
Posted on 12/05/2009 4:26:01 PM PST by KevinDavis
Not to worry, Kirk will save us ..... (right after the pregnant pause, with angst.)
I think parallel worlds(Earths) are a reality. The problem is getting there and getting back home.
Similar observations are unequivocale, looks good.
All that can be, is.
Didn’t see that.
Cool GIF. No proof there though... :)
There is enough by the HST to prove once and for all they exist,including one at the center of our galaxy.
They have been known to exist for centuries. Pre-Einstein.
You Are correct.The idea of a body so massive that even light could not escape was put forward by geologist John Michell in a letter written to Henry Cavendish in 1783.In 1796, mathematician Pierre-Simon Laplace promoted the same idea in the first and second editions of his book Exposition du système du Monde (it was removed from later editions).
How does the Hubble Space Telescope search for black holes?
A black hole cannot be viewed directly because light cannot escape it. Effects on the matter that surrounds it infer its presence. Matter swirling around a black hole heats up and emits radiation that can be detected. Around a stellar black hole this matter is composed of gas and dust. Around a supermassive black hole in the center of a galaxy the swirling disk is made of not only gas but also stars. An instrument aboard the Hubble Space Telescope, called the Space Telescope Imaging Spectrograph (STIS), was installed in February 1997. STIS is the space telescope’s main “black hole hunter.” A spectrograph uses prisms or diffraction gratings to split the incoming light into its rainbow pattern. The position and strength of the line in a spectrum gives scientists valuable information. STIS spans ultraviolet, visible, and near-infrared wavelengths. This instrument can take a spectrum of many places at once across the center of a galaxy. Each spectrum tells scientists how fast the stars and gas are swirling at that location. With that information, the central mass that the stars are orbiting can be calculated. The faster the stars go, the more massive the central object must be.
STIS found the signature of a supermassive black hole in the center of the galaxy M84. The spectra showed a rotation velocity of 400 km/s, equivalent to 1.4 million km every hour! The Earth orbits our Sun at 30 km/s. If Earth moved as fast as 400 km/s our year would be only 27 days long!
IIRC, about one Earth-mass is required for an indefinitely-sustained black hole.
Wrong responsne. Space-time it self is fundamentally misunderstood. Tell me about black holes when you’ve got those figured out ;)
I pretty much shown my case. Its up to the posters to decide.
Meant no disrespect. We just don’t know.
I disagree.
The Large Hadron Collider is going to prove it black holes exist by creating one(even though I do not like toying with the forces of nature).Somebody is going to win a Nobel Prize with this discovery.
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