Here’s a little spoiler for next month’s Cosmic Calendar: early May will see the return of the Eta Aquarid meteor shower. The ...

And sometimes — once in a blue moon — the moon is full twice in a month (or four times in a season, depending on which definition you prefer). If you want to know what you can see tonight ...

The Full Moon this month was on Saturday, April 12. Note: Moon phases in the calendar vary in size due to the distance from Earth and are shown at 0h Universal Time. Credit: Astronomy: Roen Kelly ...