Thank you very much helped a bunchFortunately, the nearest black hole is about 7 thousand trillion miles away and it's not coming directly towards us.
Alpha Centauri is coming towards us but it won't be a very close pass. Its closest point to us will be about 3.23 lyrs (~ 18 trillion miles), which won't happen until about another ~ 27, 500 years.
So is their a black hole that will swallow us within our lifetime?Here in another of those hair-brained ideas on Primordial Black Holes (PBHs). There are a number of high brows out there who insist they are possible, indeed some are sure of it! One of many nice things about them is they are a known component in the universe, and do not rely on exotic new "objects", etc.
Check this out - it relates to mergers resulting in gravitational waves:
Gravitational waves attributed to the collision of two neutron stars could have been produced by something much strangerwww.scientificamerican.com
Black hole mergers have revised interest in one of my favorite hypotheses. This is due in part to notions of prior "constraints". Stating firm constraints can lead one to erroneous assumptions and conclusions since locking into constraints locks one out of alternative thinking.
There is some rising anxiety among the anti-PBH die-hards. Careers are at stake here, and egos even more so.
Yes, SciAmer has published trash in the past. But they are far from alone in that! And this might actually be right, and would constrain the "trash" to hypotheticals at best. As the story notes, "only time and more data will tell."
I tend contrarian when everyone is saying "it has to be this way" and there are rational alternative not well investigated. There is no fun in jumping on a scientific band-wagon. Also have admitted to knowing enough to be dangerous!
So is their a black hole that will swallow us within our lifetime?
If there is, we will likely never know it.