While camping out in the mountains, Luna and Twilight enjoy a night relaxing under the stars, studying physics, and throwing rocks about.

Because every pony princess should learn how to raise a moon of her own.

Why is the sky blue? How are gemstones formed? Why are there so many different types of apple? How can we tell what is underground without digging? Can friendship help wild animals? How can a lake explode?

An open-ended collection of science-themed shorts, which can be read in any order.

The waggle dance is a performance used by social bees to communicate information about sources of food to other members of the colony. Understanding the details of how it works has been the result of many years of research.

For Fluttershy, it is just part of her special talent.

Cover art by Chingilin.

Haycartes was one of the greatest equine intellectuals of all time, having made outstanding contributions to geometry, algebra, optics, as well as magic. He is regarded as the Father of Modern Philosophy. Yet, these days, many ponies do not even recognise his name.

Twilight Sparkle and Moondancer set out to educate their friends. Using the Haycartes Method of course.

A crossover with Descartes' Discourse on the Method.

Can you engineer an eclipse to order? You can if you know the right princess and ask nicely.

When starting the Ponyville buckball team, Applejack and Rainbow Dash’s first choice for a unicorn player has to be one of the best magic workers in town. As it turns out, both Twilight Sparkle and Starlight Glimmer are big fans of buckball…

This story is a sequel to The Art of Rainbow Engineering

Beyond the familiar colours of the rainbow, lies a wider spectrum of light. Rainbow Dash and Twilight Sparkle investigate the world as seen in infrared.

Can be read independently of The Art of Rainbow Engineering.

On hearing the story of the Mirror Pool, Starlight Glimmer questions what happened to all the Pinkie clones sent back to the pool and the ethics of apparently eliminating sentient beings. Further investigation shows that the pool has the magical means to accommodate an unlimited number of orphaned souls. This is put to the test by an infinite set of Pinkie Pies.

Can you make a blue moon? Luna is sceptical, but Twilight Sparkle and Rainbow Dash decide to have a go.

Every unicorn knows that pegasi can steal your luminescence, but as it hasn’t actually happened for so long, no pony can remember exactly how they did it. This is the story of how they pulled off the heist, many moons ago.