Black holes gain mass by pulling matter into them. The mass of anything that falls into a black hole gets added to its mass. Even energy in the form of light and other electromagnetic radiation can add to a black hole's mass.
He has hit a combined total 18 holes in one in the course of his lifetime
The closest known stellar-mass black hole seems to be at a distance of a few thousand light-years. Of course, there may be black holes that are closer, but that are not known as such yet.The closest known stellar-mass black hole seems to be at a distance of a few thousand light-years. Of course, there may be black holes that are closer, but that are not known as such yet.The closest known stellar-mass black hole seems to be at a distance of a few thousand light-years. Of course, there may be black holes that are closer, but that are not known as such yet.The closest known stellar-mass black hole seems to be at a distance of a few thousand light-years. Of course, there may be black holes that are closer, but that are not known as such yet.
More white dwarves. Most stars will become white dwarves at the end of their lifetime. On a "select few" will become black holes - the most massive stars.
Given that tides are caused by gravity, and that black holes are a major SOURCE of gravity, it isn't clear that black holes would be affected at all by other gravitational sources. Of course, we can know nothing at all about whatever is inside the event horizon of a black hole.
A full golf course is 18 holes long, it is divided into two, the front nine, which is holes 1-9 and the back nine which is holes 10-18.
The assumptions are not quite correct.Scientists CAN see black holes. In fact, black holes are among the brightest objects in the Universe. Of course, light can't escape from WITHIN the black hole; rather, what we see is the accretion disk. Also, scientists are PRETTY SURE that black holes are real. As to why it is important: Black holes are fascinating objects by themselves. They also seem to play an important role in galaxy formation.
Black holes suck in everything around it for billions of miles, all of that matter is compressed into something smaller than a tennis ball. If you could calculate its weight, it would way many times the weight of our sun!
stellar black holes were stars (these are large)primordial black holes were pieces of the big bang (these are microscopic)
Most likely in the University classroom as an undergraduate student, that's where most people of his generation learned about black holes. But of course what he learned about was ordinary stellar black holes.It was much later when he made his own "what if" hypothesis on microscopic black holes. After solving the equations of general relativity for this case and including the effects of quantum mechanics, he made his theory including Hawking Radiation, evaporation of black holes, and their eventual explosion. This remains theoretical, as his black holes have still not been observed.
Massive stars become neutron stars, or black holes (depending on how much mass is left at the end of a star's lifetime).
There are 18 holes on a full golf course.
18 holes on a standard golf course.