The Sun has been burning for 4.6 billion years, and will continue to do so for roughly another 5 billion years. How is it able to sustain such a process for so long? The answer is: fusion! If you want to understand how exactly the Sun is powered, or if you are curious to learn more about fusion energy, or if you want to know how a fusion reactor works, then you should attend this course! This course will cover everything relevant to fusion energy, from how it powers stars in our universe, to how we are trying to achieve it here on Earth. The course will go over some physics concepts relevant to fusion, mainly plasma physics and some nuclear physics. From there on, we will delve deep into various designs -- such as magnetic confinement fusion and inertial confinement fusion -- that are currently being explored in order to make fusion energy a reality.