Wednesday night’s supermoon will look bigger, but it’s not actually as big as it looks. Blame the hype on social media exaggeration and the horizon.
Spotting this astronomical phenomenon with a name straight out of an 80s hair metal band is incredibly easy.
The spacecraft that got the first up-close look at Pluto in 2015 has now traveled four billion miles away from Earth.
Total solar eclipses allow scientists rare opportunities to study the corona, the mysterious outer atmosphere of the Sun.
Have you ever wanted to casually point out Cygnus, Leo and Cassiopeia? Just in time for summer, this panoramic video shows you some tricks to help you navigate the night sky.
Mission director Alan Stern and planetary director David Grinspoon chronicle the 26-year journey to Pluto in their new book, "Chasing New Horizons."
There's A Blurry Thing A Billion Miles Past Pluto, And Scientists Hope To Spot Its Shadow From Earth
As the New Horizons spacecraft heads for a target a billion miles past Pluto, a Boulder astronomer joins dozens traveling to South America and Africa to spot the object from Earth.
A research professor at the University of Arizona has found the ancient inhabitants of the Mesa Verde area used complex geometry to build a temple — the first sign of such sophisticated geometrical skills in North America.
Deep under miles of nitrogen ice, an ocean of water could still flow on the dwarf planet. Photographs and data captured by the Colorado-led New Horizons spacecraft inspired the new research.