Imagine celebrating your birthday on Nov. 29. On that day, the sun lies nowhere near Sagittarius; instead, it appears against the stars of a constellation that’s not even part of […]
Dennis Mammana is an astronomy writer, author, lecturer and photographer working from under the clear dark skies of the Anza-Borrego Desert in the San Diego County backcountry. Contact him at firstname.lastname@example.org and connect with him on Facebook: @dennismammana. The opinions expressed are his own.