Mercury in Tardigrade Shirt, Funny Gift for Science Teachers, STEM Students, Astronomers, Biologists, Scientists, Freethinkers, Geeks Get ready to make your science-loving friends and colleagues laugh with our "Sorry, I can't. Mercury is in Tardigrade" shirt! This clever twist on the classic astrology phrase "Mercury in retrograde" features the planet Mercury with a resilient tardigrade passing by. Perfect for science teachers, astronomers, biologists, and anyone with a penchant for geeky humor, this shirt is a stellar conversation starter that's out of this world. Embrace your inner freethinker, give a cheeky nod and proudly wear your scientific wit on your sleeve with this uniquely nerdy and hilarious tee. About The Shirts This classic unisex jersey short sleeve tee fits like a well-loved favorite. Soft cotton and quality print make users fall in love with it over and over again. These t-shirts have-ribbed knit collars to bolster shaping.