mark showalter

Saturn's small Pan satellite with a thin ice rim surrounds it, creating an image of an alien saucer.

A small moon revolves around Neptune

Hubble Space Telescope discovered a new satellite of Hai Vuong star, NASA Aerospace Agency (NASA) announced.

After analyzing data from multiple images captured by the Hubble Space Telescope of the US Space Agency (NASA), Dr. Mark Showalter and his colleagues from Seti Research Institute