Natural History Wanderings

EarthSky reports

The first of this month’s two full moons fell on October 1, and the second one – for most of the world – falls on October 31 (Halloween). Halloween also marks 2020’s fourth and final cross-quarter day – the spookiest of the four – known in earlier times as All Hallows Eve and to us in North America as Halloween. By popular acclaim, the second of two full moons in a single calendar month is called a Blue Moon. Thus we have a Blue Moon this Halloween, but that’s not all. On this Halloween, bright red Mars – now just past its closest approach to Earth in two years – will appear in the sky near the full moon.

Read more at  Blue Moon and red Mars on Halloween | Tonight | EarthSky