Nevadans may have seen an unusual white streak in the sky. Not quite a cloud and not quite a comet, the sight left people wondering what it was.

Clouds cleared out just enough to make this evenings rocket launch from Vandenberg Space Force Base out in California visible ...

A SpaceX launch from California on Monday night was visible in metro Phoenix. Here's what the rocket was carrying and how to ...

Arizona residents could see the satellite streak across the night sky and shared their photos and videos with Arizona’s ...

The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

"The idea that they can somehow obliterate these sources is dead wrong — scientists in general and astronomers in particular ...

In short, the rocket launches far away, in California. but it goes so high that we can see it in Arizona. And when we see it, it's not in the shadow of nightfall, even though Arizona is. The "glow" is ...

Editor: Thank you for publicizing the Dark Sky issue. There were, however, some misleading statements contained in Sunday’s article. Lake Havasu City has not “already achieved the (Dark Sky) standard” ...

Santa Fe Public Schools Superintendent Hilario "Larry" Chavez took to two district elementary schools Monday to pass out custom-designed middle school T-shirts. The aim, the district said in a news ...

As we reported earlier, Donald Trump has suggested that Ukraine "may or may not be Russian someday" (see 8.17am post). We've been keeping an eye on reaction in Ukraine, where the comments are ...

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