Sure, fine for you and me. Might, have been a problem for Buzz Aldrin though.

Michael Collins, it's your time to shine.

One of my favorite things is to have made a joke, where it turns out the real value of the joke is to set the context for someone really funny to take it in an unexpected direction, and if the direction is heartbreaking in seven words or less, all the better.

What if a moon mass or earth mass black hole collided with the sun? Would it suck in matter and eventually consume the sun?

Probably but it would take a while. Any relative angular momentum between the Sun and the black hole would result in the hole orbiting the Sun since an earth mass is tiny compared to the Sun. It might well orbit beneath the surface of the Sun, sucking up plasma as it orbits. How long would it take to "eat" the Sun? The calculation could be done but it's tricky; the hole grows as the Sun shrinks, and that causes the mass transfer to accelerate. And the Sun is denser in the middle and the hole will spiral inward as it grows to keep the center of mass of the system in the same place, etc etc.

It's possible there are one or more black holes orbiting inside the Sun right now. They might be the reason sunspots exist.

> It's possible there are one or more black holes orbiting inside the Sun right now. They might be the reason sunspots exist.

Practicing your impression of Calvin’s dad, I see…

Depends. Is the velocity of the black hole relative to the sun higher or lower than the escape velocity of the sun?

If higher than it's going to keep going, if lower, then yes eventually it's going to consume the sun.

Wouldn't momentum transfer from the consumed mass slow it down?

Some, but the sun isn't very dense. So sure if you were ever so slightly above escape velocity the consumed matter could slow you down.

A black hole the mass of the earth is 9mm. The weight of a cubic cm of sun is around 1.41 grams. The black hole isn't really going to notice.

The pass through the sun is around 1.39102e+11 cm * 1.41 grams per cm^3 = 139 million KG. So the earth weighs around 4.2* 10^16 more than what a black hole sized hole in the sun weighs.

I thought its gravitational pull and the pressure around the black hole should cause it to absorb much more mass that that estimate.

The sun emits earth sized mass all the time, I imagine the blackhole could get sway to different directions.

The question “What would happen if the Moon were replaced with an equivalently-massed black hole? If it's possible, what would a lunar ("holar"?) eclipse look like?” is answered at https://what-if.xkcd.com/129/. It starts with “ ‘Not much’ and ‘not much.’ ”

I have that book and it's wonderful. I was probably plagiarizing unconsciously.

Are there any sources on this? Would love to read more on this theoretical scenario.

Not really the same scenario, but Neal Stephenson's Seveneves is a fictional account of what might happen if the moon suddenly exploded.