Title text:
We would like to once again apologize to Dr. Jones for last year's mistaken announcement. We should really have double-checked the envelope for this award in particular.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3275/
The semi-recent room temperature superconductor reporting and all the buzz around the EMdrive are the two that spring to mind most readily.
My mind went to phosphine on Venus first. I'd forgotten about the EM drive, was always skeptical but hopeful on that one.