I had thought you were joking, but a Google search found
http://www.rickey.org/god-particle-found-higgs-boson-live-video-stream-announcement/
I can think of a reason why this was done. Of the fonts likely to be handy - and, naturally, scientific and technical types will consider the choice of the ideal typeface to be a secondary consideration - Comic Sans has an appearance which might suggest handprinting in chalk on a blackboard, thus setting the right emotional tone for what is a relatively informal presentation.
Obviously, a more appropriate font will need to be made available to forestall a repetition of this faux pas. There are science and math types who dig type - think of Donald Knuth's Computer Modern - so I think we'll see something appropriate added to the selection of TrueType fonts included in Linux distributions in the next little while without a need for action by the typographic community.
Of course, there may have already been the ideal font for this purpose available as a free font, but "handy" trumps "free" for busy people.
EDIT:
A brief search on Dafont suggests that the œuvre of Kimberly Geswein might be likely to include something helpful in this regard. "Set Fire to the Rain", for example, might have worked. Or "Architect's Daughter". Or "Shadow of the Day".

