Mid-winter in the Northern Hemisphere is a great time to catch up on some seldom-observed open star clusters. This week’s sextet lies within the boundaries of the constellation Canis Major the Great ...

When you look up at the constellation of Orion, you might also be able to easily see the brightest star in our night sky nearby. This star is known as Sirius (if you’re a Harry Potter fan, know that ...

This week’s naked-eye object is the constellation Canis Major. This star pattern lies to the southeast of Orion the Hunter. The Greeks had several myths regarding Canis Major. In one, this ...

Accompanying the well-known constellation Orion, the mighty hunter, across the winter sky in the Northern Hemisphere are two of its most faithful starry companions: Canis Major (the Big Dog) and Canis ...

Two nights ago, Venus sported a small, weakly-colored corona. Coronas form when light is diffracted or scattered by tiny ice droplets ( or occasionally ice crystals) in high clouds. Notice that the ...

When you look up at the constellation of Orion, you might also be able to easily see the brightest star in our night sky nearby. This star is known as Sirius (if you’re a Harry Potter fan, know that ...