Harnessing fusion energy on Earth "will transform the planet," and University of Arizona researchers want the school to ...

From Lowell Observatory to Kitt Peak to Mount Graham, here are the 11 best planetariums and observatories in Arizona and ...

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

Perhaps the best known of all comets is Halley, correctly pronounced so that it rhymes with rally, not daily. It is named after the 17th-18th century astronomer Edmond Halley. This ...

Thirty-five years ago, the Hubble Space Telescope was launched into orbit. It's been sending back galactic data and images ...

Meteor showers occur when Earth passes through dusty debris trails left by comets and other space objects as they orbit the sun. The debris – space rocks known as meteoroids – collides with Earth's ...

Auroras are caused when charged particles from the sun collide with gases in Earth's atmosphere ... in auroras being visible as far south as Arizona and England. In addition to causing dazzling ...

Two years ago, it snowed like the apocalypse in Newark, New Jersey. Nevertheless, the airports were open the next day and early in the morning December 28, we packed our three kids and 15 duffel bags ...

On Sunday, April 27, the Moon will be about 221,900 miles from Earth when it reaches perigee, the closest distance in its ...

You can enjoy a pint of "This Beer Saves Water" or maybe their special Earth Day brew now at any AZ Wilderness location. The new location is open now at 1422 E McDowell Rd, Phoenix, AZ 85006.

Arizona is home to dozens of national monuments, parks, and forests, ranging from pine forests to red rock formations. Flagstaff is an epicenter for nature lovers, situated in the heart of the world’s ...