Hubble’s Inside The Image: V838 Mon

The Hubble Space Telescope has taken over 1.5 million observations over the years. One of them is the breathtaking image sequence of V838 Monocerotis (V838 Mon).

Called a light echo, the expanding illumination of interstellar dust around the star has been revealing remarkable structures in the dusty cloud ever since the star suddenly brightened in January 2002. V838 Mon temporarily became 600,000 times brighter than our Sun, until it faded in April 2002. It was one of the brightest stars in the entire Milky Way. The reason for the eruption is still unclear.

Dr. Padi Boyd explains this fascinating piece of history, teaching us some of the interesting science behind this famous Hubble image.

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