Black holes are formed by the gravitational collapse of a massive object. The mass of the resultant black hole…
            Select :
              AsteroidsBlack HolesCareers in AstronomyCelestial EventsCometsConstellationsCosmic DistancesCosmic Microwave BackgroundCosmologyExoplanetsGalaxiesGravity WavesHoaxesMoonPhysicsPlanetsRadio AstronomyScientific MethodSETISolar SystemSpace ProbesStarsSunTelescopesUnexplained Celestial Observations          
         
	 
	Why Can’t We See More Black Holes in our Galaxy?
Assuming that all black holes are evenly distributed about our Galaxy, we can calculate the volume of our Galaxy…
 
	Why Don’t All Objects in the Milky Way Rotate Around the Black Hole at the Center of our Galaxy?
The gravitational force has a distance dependence to it that makes it decrease as you get further away from…
 
	Why Do Black Holes Lose Mass When They Emit Hawking Radiation?
The visualization that describes Hawking Radiation as the creation of particle/antiparticle pairs near the event horizon of a black…
 
	What Process Was Used to Image the Black Hole in M87?
The Jet Propulsion Laborabory (JPL) has provided a very nice and detailed description of the techniques used to image…
 
	Why did the EHT Choose to Image the Black Hole in M87 Rather Than Cygnus X1?
This is a very good question. Both M87 and Cygnus X1 would have been observable by the telescopes which…
 
						