The backward-question mark pattern of stars popularly known as the Sickle forms the Lion's head and measures 14-degrees from top to bottom ... respect to the background sky.

At the very darkest sites on Earth, far removed from humanity’s wasted sky-directed light, that background can be as dim as 22 mag/arcsec 2. I’d love to have a moonless night with my ...

According to NASA, it’s been nearly 400 years since the planets passed this close to each other in the sky, and nearly 800 years since the alignment of Saturn and Jupiter occurred at night ...

Looking for a telescope to observe the Pinwheel Galaxy other awesome sights in the night sky? We recommend the Celestron Astro Fi 102 as the top pick ... between it and the background sky makes ...

But while taking pictures of the night sky and celestial ... the brightness of the celestial background, which is determined by the degree of light pollution. If the sky is very bright, it is ...

Each time we gaze up at the night sky, we take for granted ... We've also since discovered the cosmic background radiation, which does illuminate the sky uniformly, and in a few different ...