The magnificent spiral galaxy M99 fills the frame in this image from the NASA/ESA Hubble Space Telescope. M99—which lies roughly 42 million light-years from Earth in the constellation Coma Berenices—is a "grand design" spiral galaxy, so-called because of the well-defined, prominent spiral arms visible in this image. Hubble's Wide Field Camera 3 captured M99 on two separate occasions, helping astronomers study two entirely different astronomical phenomena. The image above includes data from both sets of observations.