Last month thousands of people around the world stopped what they were doing and waved at the sky.
The reason? Nasa's Cassini spacecraft was taking a photo of Earth 898 million miles away next to Saturn.
The resulting portrait of Earth was utterly stunning and in tribute to those who took the time to wave, Nasa have released a beautiful composite image of some of them.
People from more than 40 countries are featured in over 1,400 photos.