With a strong storm on its way, City of San Diego crews are working to clear drains all over the city, particularly in ...

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

According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to ...

Each planet in our solar system is given a unique, humorous catchphrase that reflects its personality and role. From ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

But should they? Is Pluto even a planet? According to Dr. Grundy, Pluto is a planet. "I use the word 'planet' to refer to it, and most of the planetary science community does too," Grundy said.

If the solar system held a poetry slam, each planet would present its unique poetic style. Mercury delivers rapid-fire verses ...

The "Star Trek" legend's only son will discuss his memoir at the annual space-themed event.

Venus in Aries sextile Pluto in Aquarius is sexy and intense and could ignite a change that’s as thrilling as it is ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...