ulf merbold

5

For the first time in my life I saw the horizon as a curved line. It was accentuated by a thin seam of dark blue light—our atmosphere. Obviously this was not the ocean of air I had been told it was so many times in my life. I was terrified by its fragile appearance.

- Dr. Ulf Merbold, astronaut

Video credit: A View from the ISS at Night on Vimeo (highly recommended)