This image of a cosmic microwave background, the oldest light in the universe, reveals 13.77-billion-year-old temperature fluctuations (shown as color differences) that correspond to the seeds that ...

Our astrotourism columnist visited the Oregon Outback for night-sky photography, but found something even more remarkable ...

Have you ever looked up at the night sky and noticed that the stars form patterns? The way the stars are arranged has been the same for millennia, and throughout time, various cultures, from the ...

“Dome After Dark,” described as a night of movement, music and community, will kick off the fall term at the University of Wyoming Harry C. Vaughan Planetarium. The event is scheduled 9 p.m.-1 a.m.

PARADISE VALLEY, AZ — With a $25 million fundraising goal to build the International Dark Sky Discovery Center in Fountain Hills, signature naming rights are now available. The International Dark Sky ...

With more sightings of the northern lights across the U.S. than usual in recent years, now is an excellent time to make the trek to a Dark Sky Place. Even if you don't see the rainbow of colors ...

The four presenters will have 10 minutes apiece to compete by using the planetarium visuals, explaining a part of the ...

FOUNTAIN HILLS, AZ — On April 8, Americans can catch a glimpse of the total solar eclipse that will cover parts of the country. That same day, Arizonans can catch a glimpse of the future in one ...

The anticipation at ObservÉtoiles, an outdoor observatory in the Eastern Townships, had been building for hours. Or was it days? I’d traveled there, along with my husband and 10-year-old son, to watch ...