http://www.slate.com/articles/technology/future_tense/2015/08/space_vegetables_eat_them_before_they_eat_you.html

In what was tweeted as a giant leap for deep space exploration, NASA astronauts on the International Space Station have eaten red romaine lettuce that they grew on board. Crew member Scott Kelly’s tweet (“It was one small bite for man, one giant leap for #NASAVEGGIE...”) was obviously meant to mimic Neil Armstrong’s historic first words from the surface of the moon. Yet Kelly missed the chance to not only correct the quote (Armstrong long asserted that he had actually said the much more poetic phrase “one small step for a man”) but to include the foliage pun “one giant leaf.” This tells us that, six months into Kelly’s year in space, he is spending too much time on scientific experiments and not enough time on tweet drafting.