Perhaps the most charming sight of this week will be “Da Vinci glow.” The dim light visible on the dark limb of a crescent moon, “Da Vinci glow” is named after the 16th century Italian ...

What does a sunset on the moon look like ... longer collect light. Blue Ghost—named after a rare firefly species found in the U.S. known for its distinctive blue glow—is slightly different.

On Wednesday, Venus will appear close to the waxing crescent moon, which will be 14%-lit, making for a lovely pairing. Bonus: the dark part of the moon will glow with earthshine (aka Da Vinci glow).