Ever wonder why we say 'once in a blue moon'? May’s full moon schedule sheds some light. This Sky Above includes Halley's ...

May brings a rare double full moon: Flower Moon is on May 1 and Blue Moon is on May 31.

May will deliver a double delight for skywatchers, you’ll get to see two full moons in a single month. We’ll show you where ...

Both moons are also micromoons, which means they are smaller and less bright than a regular full moon. This happens because ...

A video filmed in Taylor, Michigan, showing what appear to be two moons in the night sky has prompted widespread curiosity — but as interesting as it could have turned out if true, astronomers say the ...