So back to some Physics videos, what is space-time?: This video does a really nice job of explaining this in a way that is understandable, but not so simple it loses any meaning.
I have included links to wondorium below, as well as links to the usual discussion forums.
Positronium is a particle that has no actual nucleus, but has a positive (positron) and negative (electron) particle. The positron is antimatter as it has the opposite charge to an electron, which is negatively charged.
Scientists have found a way to freeze the particle with lazers, which will allow further study.
Nuclear fusion plant to be built at West Burton A power station.
This sounds like a really exciting development and should hopefully help the UK take the lead in a clean and sustainable energy resource.
This is also an excellent reason, regardless of where you live to study STEM. While this plant is not due to start until 2040. This is only 18 years away, so if you are heading in to year 7, then by the time you have obtained a post graduate or other hi-tech qualification you should be employable within this industry.