Welcome to Greetings Greetings greetings welcome to Star Talk

and the year I'm your host me and I here with a live new

to the start the world wide world Chuck nice

and this is the special all star edition of Chuck here's the interesting

I'm the all star I'm not I'm starring all

here it's good now it's really fun I really I really appreciate you guys

including me now this is a cosmic query yes it is yes I see you have stacks

of quirical queries yes I do from all over the inquiries interwebs

uh an electric thing the kids use their electric machines

you hear that things catching on yeah I don't know what's going on with that

cool thank you all for sending in questions Chuck let's read one let's get

right to it okay and um this is from Dan Gomez

Dan says what exactly is inside of a vacuum if not matter

then some sort of cosmic energy the fabric of reality well there's

there's energy passes through a vacuum right so we love that we're talking

light heat all these exciting things uh then that you ask a good question

uh you know people talk about space time using it as one word space time

and it's generally agreed that not only is the universe expanding but

space itself is expanding so most of space has what we reckon is no matter

nothing in it so perhaps the that any vacuum you have

is also expanding along with space if it's away from a gravity field or away from

a local gravity field okay maybe it's expanding and we just can't we can't

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