Where is a perfect vacuum—one that is absolutely without any matter or energy—possible?

stashio2020, but how do you prove that is absolute zero? That's just what science currently assumes is the lowest based on the mind of man assuming that particles stop. Who's to say that going even lower isn't not only possible but achieves some other form of existence for something we don't yet know about. Makes ya think when you step outside the box.

How do they know there are a few hydrogen atoms in every single cubic metre? And isn’t the space between those few atoms perfect vacuum

The question is awkwardly worded.

Terrible wording of the question. I see that often in this app.

but no one can hear you scream!

Isn't nowhere somewhere?

Because Science !!

Entropy & Chaos folks! There's no perfect vacuum just like you can't achieve absolute zero temperature

In the downstairs closet, no one cares about it, because it doesn't work. It's an old Hoover

Player #11391572, I think you are correct

Player #35313897, There may not be matter, but look up something called "zero point energy"

Perneco, abhorrent to nature

it's wrong as a black hole can do a "perfect vaccum"

Player #11391572, Hu's on 1st?

RegretfulHuman68, No pun intended, Huh?

Bad bad bad

docbarb, bullpucky

I learned in high school vacuum could be found only in space