In this illustrated problem set, students use pi to calculate the size of a Mars rock sample, compare the mirrors of two space telescopes, deduce an asteroid's makeup, and size up a solar eclipse.

In this illustrated math problem, students use pi to determine the volume of a rock core collected by the Perseverance Mars rover.

In this illustrated math problem, students use pi to compare the area of the Hubble Space Telescope and Webb Telescope’s primary mirror.

In this illustrated math problem, students use pi to calculate the approximate density of the asteroid (16) Psyche and compare that to the density of known terrestrial materials.

In this illustrated math problem, students use pi to figure out how much of the Sun’s disk will be covered by the Moon during an eclipse and whether it’s a total or annular eclipse.

In this illustrated math problem, students use the mathematical constant pi to find the "habitable zone" around a distant star and determine which of its planets are in that zone.

In this illustrated problem set, students use pi to detect frost in lunar craters, determine the density of Mars' liquid core, calculate the powered output from a dam, and find out how far a spacecraft travels as it returns data to Earth.

In this illustrated math problem, students use the mathematical constant pi to calculate the area covered by a laser used to detect frost on the Moon's surface.

In this illustrated math problem, students use the mathematical constant pi to determine the density of Mars' liquid core.