Science and skywatchers alike are eagerly awaiting a rare nova that will be visible to the naked eye. The Blaze Star – which is actually the binary star system T Coronae Borealis – is geared up to explode.

The T Coronae Borealis system, located in the constellation Corona Borealis (hence the moniker), is a white dwarf paired with a companion, a red giant star, in a celestial tango: the white dwarf steals materials from its partner, builds up a shell of hydrogen gas, and then, when the shell gets to a critical mass, erupts in a thermonuclear explosion, a nova.

This nova offered a chance to probe the details of stellar evolution. The light and energy of the outburst provided information about the internal structure and composition of the star.

It is difficult to pin down the precise timing of a nova, but astronomers are sure T Coronae Borealis is very near the exploding point. The star system is showing signs of ramping up. Judging by the momentary increase in its flickering, the star appears to have achieved thermonuclear critical mass.

But both professional and amateur astronomers and armchair observers should look to the heavens for a display of this remarkable celestial wonder. When the Blaze Star goes off, it will be a glorious light show, an affirmation of the sheer wonder of the Universe.

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