Homolovi State Park was ranked among top road trip destinations in Arizona, and for good reason. Here's why you should make ...

Scientists across the world, including some in Arizona, are keeping an eye on an asteroid that has a very slim chance of ...

Last fall, the scientific community went into a minor frenzy. A hunk of interstellar material had been sucked into the ...

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

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

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 the bottom of whether Pluto is a planet, I tracked down planetary scientist ...

Sen. Mark Finchem's short bill would eliminate concern the nonprofit Prescott Frontier Days would have control of taxpayer ...

The commenter also listed Meteor Crater Natural Landmark, Cinder Cones, Lava Tubes, Lowell Observatory ... in Arizona; the ...

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

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

Recent research led by Lowell Observatory found information about how planets are formed through studying the DF Tau binary star system. The study combined data from the Atacama Large Millimeter ...

These hidden gems in Arizona are picture perfect in every way. Come explore historic sites, mesmerizing lakes, and even a ...