answersLogoWhite

0

Black holes do NOT project light. Hence the name black hole. Their gravity field is so strong that nothing escapes, not even light photons. The only way we know they exist by the bending of the trajectory of photons passing them. Galaxies project light via radiant energy, i.e. photons. In the same way you observe a lightbulb, you observe a galaxy. The primary difference is that we have developed instruments to not just observe galactic energy within the visible spectrum, but the entire electromagnetic spectrum, e.g. radio waves and x-rays. Those instruments would work with a lightbulb too, but they're usually busy looking at galaxies. Actually, black holes probably do give off light (and all other particles). This effect is quantum mechanical in nature and was discovered by Stephen Hawking. However, it is not at present possible to measure this. Whether or not Hawking is right, we can observe black holes, and not just because of light from distant stars bending around them. The event horizon is a very violent place, and materials are being spun around in the vortex just outside of the horizon, and they are being torn apart before entering the horizon as well. All of this creates a massive output of energy that we can observe. We get hints that we are observing a black hole by observing how nearby stars interact with it. Black holes sometimes 'suck up' so much matter that some of it escapes. http://www.tqnyc.org/2006/NYC063368/the_stars.htm

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

Does life depnd on the black hole in the middle of the galaxy?

no it does not depend on the black hole in the middle of the galaxy


Will the galaxy ever get sucked in to a black hole?

no the galaxy is way to big for a black hole to do much in fact we now know that there is a supermassive black hole in the center of our galaxy right now.


Does every galaxy contain a black hole?

No, not every galaxy contains a black hole. While many galaxies do have a supermassive black hole at their center, there are also galaxies that do not have a black hole.


What galaxy has a black hole?

The Milky Way (our galaxy) is believed to have one in the center. Every or almost every galaxy has a black hole in the middle of it.


Can a black hole destory the galaxy?

No. No black hole is big enough to do that.


Does the sun orbit a black hole in the center of our galaxy?

No, the sun does not orbit a black hole in the center of our galaxy. The sun orbits around the center of the Milky Way galaxy, where there is a supermassive black hole called Sagittarius A.


What bright Galaxy has a black hole in its center?

It seems that just about EVERY galaxy has a huge ("supermassive") black hole in its center.


A distant galaxy with a black hole at its center is called?

every galaxy got a black hole in the center even our galaxy, the milky way.


Is a blazar an active elliptical galaxy with a supermassive black hole at the center?

A blazar is an elliptical galaxy with a supermassive black hole at the center.


What is a galaxy with a black hole at its Center?

It is believed that all galaxies have a black hole at their centers.


Does M65 galaxy have a black hole?

Yes, the M65 galaxy is thought to have a supermassive black hole at its center, like many other large galaxies. This black hole likely plays a crucial role in shaping the galaxy's properties and evolution.


Is the sun orbiting a black hole?

No, the sun is not orbiting a black hole. The sun is part of the Milky Way galaxy and orbits around the center of the galaxy, where there is a supermassive black hole called Sagittarius A.