You can't really "observe" a black hole. About the best you can do is look for their effects on their immediate environment, and one of the best tools for that is an X-ray telescope... matter falling into the black hole releases a lot of energy, and some of that comes out as X-rays.
its qutiona
Concave means bulging inward - reflecting telescopes use this sort of mirror. The first telescope designed to use one was invented by Isaac Newton and they are therefore called "Newtonian" telescopes.
I think it is an f-350
He is helpful,kind, smart and relaxed
Third person point of view.
specifically, "astronomers" that study black holes are called cosmologists.
An astronomer uses telescopes to study space. They observe celestial objects like stars, planets, galaxies, and other phenomena to understand the universe's properties and behavior.
Black holes are believed to emit something called Hawking radiation.
Scientists typically use optical telescopes to observe and study celestial objects and phenomena in the universe. These telescopes gather and focus light to create detailed images of distant objects, helping scientists to learn more about the universe.
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Black holes emit a form of energy called Hawking radiation, which consists of particles being emitted from the black hole's event horizon. This radiation causes the black hole to slowly lose mass over time.
High-mass stars might become black holes, if the remaining matter (after the supernova explosion) is sufficiently large.
No. Their gravitational pull is simply too great to maintain any kind of atmosphere.
Scientists "see" things through specialized equipment that identify waves that are invisible to a human eye i.e. microwaves, gamma waves, etc.Also because we are in the Milky Way, right? SO There are many stars in our galaxy. So, they can see it because it was a big black gap right in our galaxy and they could see stars flowing in it being sucked into it. Like when you drain the bathetub after a bubble bath. You can see the little torpido of water in it. Even when it's the same color. You get it?Black holes don't give off gamma rays or microwaves. That's the whole point. (Except hawking radiation, of course, but that is hard to detect as the effect is so small in large objects.) Seeing objects that don't reflect light is tricky business. And black holes are as mysterious as a target can be. Not even light can escape them. This is a pretty tricky problem for scientists, whose instruments usually rely on light-- whether it's visible light, radio waves, X-rays or infrared-- to observe objects in space.One method to see black holes has been to watch the fate of an object falling into one of these cosmic graves. If material actually falls into a black hole, it gets shredded apart and it heats up. As it heats up, it starts emitting light and this radiation we can observe. In particular, we can often see X-rays coming from black holes. When gas orbits around a black hole it tends to get very hot because of friction. It starts emitting X-rays and radio waves. So a lot of times black holes can be found and studied by looking for bright sources of X-rays and radio waves in the sky.These X-rays do not get through the Earth's atmosphere and can only be seen with telescopes positioned in space, such as the Hubble telescope.The strong gravitational attraction of a black hole affects the motion of nearby objects. When astronomers see a star circling around something, but they cannot see what that something is, they may suspect it is a black hole. Astronomers can even figure the mass of a black hole by measuring the mass of the star and its speed. The same kind of calculation can be done with black holes at the center of many galaxies, including our own galaxy, the Milky Way. In fact, at the very center of our galaxy, radio and X-ray telescopes have detected a powerful source called 'Sagittarius A', identified as this massive black hole.
international
Kind of. They go dormant if their is nothing in their surroundings to absorb. They have a constant swirling cloud of dust and gases if they are active, but they are simply a black orb if they are domant.
It is a tricky question because black holes are invisible, but scientists know that they are exist because black holes distort light, so it kind of change the light and also it sucks everything into it, so when scientists see stars starting to disappear, thats mean there is a black hole.