The New Horizons spacecraft took this picture of Ultima Thule as part the last check on its flyby trajectory. The image on left is the the raw data. The KBO is so small that it only occupies two pixels. The image on the right is a processed version that show gives a general view of its shape. Ultima Thule is far enough away that radio signals take a bit over six hours to travel to Earth. As I’m posting this, the first flyby data has just been received.
Image Credit: NASA