How is pi used in astronomy? Astronomers can use pi to measure a planet’s size. They observe how much a star dims as a planet passes in front of it. Combine that percent with the planet’s area, and you can calculate how large it is. Pi is also key in modeling the exact size and shape of an exoplanet’s orbit.
How is pi used in NASA? Engineers use pi to put spacecraft into orbit around other planets. To do this, they have to slow down the spacecraft just enough and at exactly the right time for it to get pulled into orbit by the planet’s gravity.
How do scientists use pi? Pi is useful for all kinds of calculations involving the volume and surface area of spheres, as well as for determining the rotations of circular objects such as wheels. That’s why pi is important for scientists who work with planetary bodies and the spacecraft that visit them.
What does Hubble say on your birthday? Hubble explores the universe 24 hours a day, 7 days a week. That means it has observed some fascinating cosmic wonder every day of the year, including on your birthday.