The world of Sailor Moon does not just relate to our own solar system, but the many unknown planets from the original story ...

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

A nearby cosmic ticking time bomb has been found! Just 150 light years away, a pair of white dwarf stars are on a death ...

Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons ...

These next two weeks, the evening sky offers us arguably the best overall parade in months of moon pairings with bright ...

Timing is everything when everything is moving. At one o’clock this afternoon the moon was right in the middle of the ...

The full moon will occult the star Spica only 28 minutes later for observers ... Lunar calendars exist in many other traditions; in the Southern Hemisphere the Zulu called the April lunation ...

It’s stargazing turnover time! Nighttimes are shrinking, and you’re forced to wait longer into the evening to begin your ...

The night sky tonight and on any clear night offers an ever-changing display of fascinating objects you can see, from stars and constellations to bright planets, the moon, and sometimes special ...

The "music" of starquakes—enormous vibrations caused by bursting bubbles of gas that ripple throughout the bodies of many stars—can reveal far more information about the stars' histories and ...

even though it’s 25 light years away from Earth. Sunday, March 16 This morning, the bright star Spica can be seen hanging out near the waning Moon.