[voidpointer]

This is going to be a dumb question I fear... If, as the article says, photons can't travel through a vacuum how are we able t see the stars (let alone distant galaxies)? Is it just because space isn't enough of full vacuum, or what am I missing?

[FreeFull]

The article talks about "phonons", which are a different thing from photons.

[voidpointer]

Thanks. drinks-another-coffee

[basilgohar]

I know it's not exactly HNewsy, but I felt the need to upvote this because, frankly, this made me smile and also I am highly sympathetic to this sentiment right now.