Starwatch: this week’s rare blue moon highlights the strange way we mark our calendar

This is a live story built from multiple sources. It may evolve quickly.

Coverage meter • 1 min window

Back to home Open top source

T theguardian.com

What’s included

Top recent items from this story.

1 items • 1 unique links

The Guardian - Science 17 hours ago • theguardian.com

Starwatch: this week’s rare blue moon highlights the strange way we mark our calendar

Because we define dates based on the stars, the full moon on 31 May will be the second one of the calendar monthThis week’s full moon is a blue moon. The term does not describe the colour of the moon, but instead arises…

Open