While all seven planets could appear in some form in parts of the U.S., not all of them will be visible to the naked eye. Here's what to know.

What views of the night sky would we have if we had evolved on the Jupiter moon Europa, or one of the TRAPPIST-1 planets?

A planetary alignment, or a "planet parade," according to the internet, will grace our night sky just after dusk, according ...

Seven planets in our solar system — Venus, Mars, Jupiter, Saturn, Uranus, Mercury and Neptune — will align in the night sky, according to Science Alert. The planets will appear in a line or arc from ...

The much-heralded planet parade of 2025 is reaching its climax – and its end. This week, seven planets will briefly share the ...

Ukrainian President Volodymyr Zelensky, when pressed at a news conference, said he is willing to give up the role in exchange ...

Arizona's dark skies are a haven for astronomers and photographers. Some communities are fighting to keep them that way.

Native American activist Leonard Peltier was released from prison into home confinement in Turtle Mountain after serving 49 ...

From Arizona's canyons to Utah's buttes and beyond, our national parks columnist shares the most adventurous Southwest ...

Arizona lawmakers seek to immunize police officers who shoot down drones they suspect are being used to help smuggle drugs ...

France’s Landes de Gascogne Regional Natural Park has been officially designated as an International Dark Sky Reserve, recognizing the collective efforts of the region.

The four planet-strong "planet parade" currently visible to the naked eye in the night sky for a short time after sunset will ...