Have you seen our "Rethink Science" ads for #WSF18 in the subway? Starting this week, we're offering a chance for you to win three FREE tickets to the 2018 World Science Festival through our #ScienceSelfie competition! All you have to do is: (1) Safely take a selfie with our "Rethink Science" sign. (2) Share it on Insta, tag @WorldSciFest and tag the two people you'd like to bring. (3) Don't forget to add the #ScienceSelfie hashtag on your post. That's it! For official competition details and rules, click on the link in our bio. 🚉🤳🏽🔬 Pics from previous World Science Festivals will also be considered. . . . . . #worldsciencefestival #newyork #nyc #nyctransit #manhattan #harlem #brooklyn #bronx #mta #selfie #science #contest #challenge #instagram #subway #friends #tickets #free #newyorkcity #exhibitions #events #astronauts #artists #authors #scientists #scicomm #scientistswhoselfie #stillascientist