The new moon, low in the West, is taking the shape of smile. Watch the western horizion at dusk the next several evenings, and if its clear, you'll spot that slender, smiling crescent.
Mercury has the most out of round orbit of any planet with its distance from the sun changing between 30 to 40 million miles. It also has no axial tilt…
Things in the night sky are radically changing their brightness. Of course, we all know that the moon alters its phase and its brightness, but the big…