The Dark Energy Spectroscopic Instrument (DESI) is mapping millions of celestial objects to better understand dark energy—the ...

"Light pollution from projects like INNA doesn't just hinder research, it steals our shared view of the universe." ...

As the Northern Hemisphere welcomes spring today, the Southern Hemisphere is marked with the first day of autumn.

The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.

The Winter Circle (or Winter Hexagon) isn’t a constellation. It is an asterism, made of bright stars in the winter evening ...

At the easternmost edge of the Ouachita National Forest and less than an hour away from Little Rock, Lake Sylvia is the site ...

March's full moon, the Worm Moon, is extra special. Here's how bad weather won't keep Redding from seeing the striking view.

March's full moon, the Worm Moon, is extra special this year. But Californians may face cloudy skies that could affect the ...

I MEAN, THIS IS LIKE A WINTER DAY, AND IT WAS TRULY A WINTER STORM LAST NIGHT. AND THIS MORNING SINCE ... AND BY THE WAY, IF YOU’RE ABLE TO SEE THE WESTERN SKY RIGHT NOW, IT’S THE MOON AND ...

But the effect will also paint its surface with a striking reddish-orange hue for a few hours, creating a breathtaking sight in the night sky as it moves through the constellations Leo and Virgo.

It is the culmination of an impressive display throughout January and February, when six planets have been lining up in the night sky, with Mercury joining this week. There won’t be an ...

Seven planets are aligning in the night sky this week, creating a brief chance to see a "planetary parade." Worldwide, the best day to see the alignment is today, Feb. 28. Mercury, Venus ...