Filmmaker Adam Nemoy helps celebrate the 90th anniversary of Pluto's discovery this month at the 6th annual 'I Heart Pluto' ...

Every now and then, robots on the surface of Mars, or the spacecraft orbiting the planet, send back some fascinating images ...

The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the ...

This observatory was founded in 1894 by the Harvard-graduated mathematician Percival Lowell. Throughout the years, the observatory has been credited with making a handful of important findings.