1) When referring to a black hole's size "bigger" refers to its 'Event Horizon'. The EH is the distance out from the BH's center marking the edge of the region in which 'escape velocity' (the speed required to escape a gravitational source) exceeds the speed of light, thus the reason BHs are black, or invisible to us: Even light cannot escape their immense gravitational field.
The EV for Earth, on the other hand, is a mere approximate 18,000 miles per hour.
In other words, if you were shot out of a cannon, straight up, at 18,000 or more miles per hour you would escape Earth's gravitational pull and be launched into space.
This is not the same as being launched into orbit, where one of course does not escape the Earth's pull entirely but rather rides a fine line between escaping and inertially moving straight forward. Too slow a launch velocity and an orbiting object will spiral back down to Earth.
In reality, all orbiting objects, due to atmospheric drag, will eventually spiral back down to Earth. In fact, the International Space Station (ISS) has boosters on board to correct this effect, although the height of the orbit matters, as the thickness of the atmosphere of course varies with height.
2) The "super-massive "cousin" known as Sagittitarius A*" is THE central black hole in our Milky Way Galaxy. It lies roughly 26 light years (26 x 5.9 trillion miles = 153 trillion miles) away and is approximately 4 MILLION times as massive as the Sun. The entire galaxy revolves around this object.
At the core of any Black Hole, no matter how large its Event Horizon, is an 'infinitely small' region of space known as a singularity. Turn the knob to increase the mass within an infinitesimal singularity and its EH grows proportionally, similarly to a spherical balloon being inflated. The singularity's 'size', I imagine, remains the same or perhaps becomes even smaller.
Black Holes Matter
It's statements like this that drive me nuts. The void won't tell us anything about how life came to be.
Federal Budget?
Isn’t the Earth’s orbital velocity 18,000 mph and the escape velocity more like 24,000 mph.
I believe that the Sagittitarius A black hole is 26,000 light years away, not a mere 26 light years.
Does Don Lemon know about this?
Should name it Sharpton.
Something else to thank God for: we’re about 70,000 light years away from that thing.
There are no singularities in the real world, but the smallest quantum of area is so small it might as well be a singularity.
Shep Smith is aroused.
I’m gonna fire up the old star cruiser and go out there and tee one off for a hole in one.
I’ll probably get sucked into some kind of alternate reality, but I’ll have a hole in one.
packing my bag
Whole point of a 100,000 Sun’s mass black hole is that 1 to 10 million solar mass black holes are common in comparison. Something happens such that the smaller version are only a short transient phase. WHY?
Oh I see. Send more money!!
It's hard to believe that Chile beans are THAT powerful.