No. It contains energy. It does not "contain" energy, if it did, you could give me the reading in ergs.
Nothing means there is no space or time
How do you know there's space or time inherent in chunks of total vacuum in outer space? What will you measure with your non-nothing detector to prove your case?
"It does not 'contain' energy, if it did, you could give me the reading in ergs."
It says so in the article you provided me:
http://physicsweb.org/articles/world/15/9/6
It says:
"Even a perfect vacuum at absolute zero has fluctuating fields known as 'vacuum fluctuations', the mean energy of which corresponds to half the energy of a photon."
---
"What will you measure with your non-nothing detector to prove your case?"
I don't know that it is possible to detect it. Scientists claim that it can be described mathematically, has symmetry, and is unstable. This is a realm where science is being made to fit into mathematical models, while math itself does not necessarily represent reality.
Even if something can come from absolute nothingness, it is probably impossible to support it scientifically.