The partially-eclipsed Super Blue Blood Moon makes its way past the Golden Gate Bridge as seen from the San Francisco Yacht Club in San Francisco, Calif., on Wednesday, January 31.

What is a blue supermoon and how rare is the Aug. 30 event?

There’s a blue supermoon in the astronomical forecast for Wednesday, Aug. 30.

Northeastern Global News interviewed Jacqueline McCleary, an assistant physics professor and observational cosmologist at Northeastern, about what makes this the year’s biggest and brightest full moon.

Read more from Northeastern Global News.

Photo by Carlos Avila Gonzalez/San Francisco Chronicle via AP

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