British Astronaut to Queen Elizabeth II: Happy Birthday from Space!

The United Kingdom is marking the 90th birthday of Queen Elizabeth II — its longest-reigning monarch — with a massive celebration today (April 21). "#HappyBirthdayYourMajesty," Peake wrote in the simple message, which was repeated in hand-drawn block letters on a sheet of three-ring binder paper. Peake snapped the photo in the space station's Cupola, an observation room that offers panoramic views of Earth (which was a brilliant blue with some clouds in the image).