Sunset tonight will feature mostly clear skies with only a few fair weather clouds. No more than about 20% of the sky will ...

As well as some of the darkest skies on the U.S. East Coast, it's also the nation's southernmost point. At 24.5 degrees north ...

This stunning image features a deep field view of the Cassiopeia constellation where the two small planetary nebulas can be ...

New observations with the Atacama Cosmology Telescope in Chile reveal the earliest-ever "baby pictures" of our universe, ...

The Sun, the main source of light and energy, is the brightest object in our solar system, shining on and lighting up all other celestial bodies. Jupiter, the biggest planet in our solar system, ...

New insights from the Atacama Cosmology Telescope offer unprecedented images of the universe at 380,000 years old, revealing ...

The sky has always been a canvas for nature’s artistry, often leaving us in awe with its myriad hues. From the soft pastels ...

The Pleiades, Ptolemy's Cluster, the Large Magellanic Cloud — here's how to center the sky's brightest deep-sky wonders in ...

New research by the Atacama Cosmology Telescope, or ACT, collaboration has produced the clearest images yet of the universe’s infancy – the earliest cosmic time accessible to humans. Measuring light ...