Exoplanets—planets that orbit stars beyond our solar system—have transformed our understanding of the universe. Since the ...

New Hubble Space Telescope imagery of the Saturn show it's 'ring spokes' in orbit around the gas giant planet. Credit: ...

Pluto stands stationary this morning at 2 A.M. EDT against the background stars of Capricornus. Additionally, Saturn experiences its equinox as the Sun crosses the planet's equator. The rings' shadow ...