Which hard sf anthology did the Guardian newspaper describe as “superb”? Was it Edge of Infinity, the “sequel” anthology to 2010’s Engineering Infinity, both of which were edited by Jonathan Strahan? I think not.
It was Rocket Science.
If you’re going to throw around a term like “the best hard sf anthology of the year”, and you think it’s a toss-up between Edge of Infinity and Baen’s Going Interstellar, well, you’d be wrong. It’s not about the marquee names on the cover or in the TOC. It’s about the stories.
So if you’re a fan of hard sf short fiction, and you don’t own a copy of Rocket Science, then you need to rectify that immediately. Because you can’t make any claims to “best of the year” if you’ve never bothered to read the first hard sf original fiction anthology to be published in 2012.