A nebula is an interstellar cloud of dust along with ionized gases like hydrogen and helium.
The first photograph taken of a nebula was of the Orion Nebula in 1880. Today, colorful photographs of nebulae offer an amazing look at the beauty of deep space.
One of the most famous and recognizable images ever taken of a nebula is the "Pillars of Creation" photo of the Eagle Nebula taken by the Hubble Space Telescope in 1995.
The t-shirt designs featured here show some of that beauty, using colors and artistry inspired by nebulae.