Sung to the tune of

**Leader: **I'll sing a factor of the Drake Equation.

**Chorus: **What is your factor of the Drake Equation?

**All: ** R star is the rate of stellar formation.

**Leader: **I'll sing a factor of the Drake Equation.

**Chorus: **What is your factor of the Drake Equation?

**All: ** fp is the fraction which develop planets,

R star is the rate of stellar formation.

**Leader: **I'll sing a factor of the Drake Equation.

**Chorus: **What is your factor of the Drake Equation?

**All: ** ne are the planets which could be life-sustaining.

fp is the fraction which develop planets,

R star is the rate of stellar formation.

**Leader: **I'll sing a factor of the Drake Equation.

**Chorus: **What is your factor of the Drake Equation?

**All: ** fl is the fraction on which life emerges.

ne are the planets which could be life-sustaining.

fp is the fraction which develop planets,

R star is the rate of stellar formation.

**Leader: **I'll sing a factor of the Drake Equation.

**Chorus: **What is your factor of the Drake Equation?

**All: ** fi, intelligence evolves.

fl is the fraction on which life emerges.

ne are the planets which could be life-sustaining.

fp is the fraction which develop planets,

R star is the rate of stellar formation.

**Leader: **I'll sing a factor of the Drake Equation.

**Chorus: **What is your factor of the Drake Equation?

**All: ** fc is intelligence choosing to communicate.

fi, intelligence evolves.

fl is the fraction on which life emerges.

ne are the planets which could be life-sustaining.

fp is the fraction which develop planets,

R star is the rate of stellar formation.

**Leader: **I'll sing a factor of the Drake Equation.

**Chorus: **What is your factor of the Drake Equation?

**All: ** L is the lifespan of advanced societies.

fc is intelligence choosing to communicate.

fi, intelligence evolves.

fl is the fraction on which life emerges.

ne are the planets which could be life-sustaining.

fp is the fraction which develop planets,

R star is the rate of stellar formation.

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