A very rare treat is about to grace Earth's night skies.

She did this by carefully examining photographic plates (which preceded film) of the first Palomar Observatory Sky Survey ... of dense dust clouds where stars form—critical resources for ...

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

appearing as an arc in the sky. The arc will be higher the closer you are to the equator. The arc will be lower the farther north you are. No. From our viewpoint on Earth, the planets will form an ...

Ala Ebtekar’s new cyanotypes for Arion Press were exposed using moon and starlight during a partial lunar eclipse ...