Hotz Mats have posted a photo of their Enhanced Deep Space game mat.
From their announcement:
The Enhanced Deep Space game mat! Airbrushed in shades blue, orange, pink and red, as well as several other colors, as well as having more stars of various sizes, this game mat is designed to look like a Hubble Photo and is the perfect backdrop for those players who want to play on a colorful backdrop. These mats are available with or without hexes/squares: up to 72 x 45 inches with hexes/squares, 72 x 48 inches or larger without hexes/squares.