NASA's visualization of a black hole sheds light on warped world
 

NASA's visualization of a black hole sheds light on warped world

NASA has produced a mesmerizing visualization of a black hole, illustrating how its gravity distorts our view. it shows gravity as bright orange streaks melting around the central core as the enormously dense object skews and pulls at everything around it.

NASA's visualization of a black hole shows its warped world

images courtesy of NASA’s goddard space flight center/jeremy schnittman unless stated otherwise

 

 

the visualization, created by jeremy schnittman using a custom software at NASA‘s goddard space flight center, simulates the appearance of a black hole where infalling matter has collected into a thin, hot structure called an accretion disk. the black hole’s extreme gravity skews light emitted by different regions of the disk, producing the misshapen appearance.

 

magnetic fields wind and twist through the churning gas causing bright knots to constantly form and dissipate. nearest the black hole, the gas orbits at close to the speed of light, while the outer portions spin a bit more slowly. this difference stretches and shears the bright knots, producing light and dark lanes in the disk.

image courtesy of EHT

 

 

this so-called ‘photon ring’ is composed of multiple rings, which grow progressively fainter and thinner, from light that has circled the black hole two, three, or even more times before escaping to reach our eyes. a cosmic phenomenon known as the ‘doppler’ effect produces a change in frequency in the wavelength of the light, increasing the level of brightness for light moving in such a way, and the opposite is true as it moves away from us.

 

 

‘simulations and movies like these really help us visualize what einstein meant when he said that gravity warps the fabric of space and time,’ explains jeremy schnittman, who generated these gorgeous images using custom software at NASA’s goddard space flight center in greenbelt, maryland. ‘until very recently, these visualizations were limited to our imagination and computer programs. I never thought that it would be possible to see a real black hole.’

 

on april 11, the event horizon telescope team released the first-ever image of a black hole’s shadow using radio observations of the heart of the galaxy m87.

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