Earth is a flat motionless Plane under a Dome and centre of the known Universe. This book is meant to seek and reveal the truth and show how the World truly is and how it works, by using physical science, mathematics, engineering and all other disciples to show and prove the truth by analysing the previous research, observation of the actual physical evidence, and calculations using both the flat Earth model and supposed heliocentric assumption. There are so many research works done by different people on related topics out there, however, when seeking the truth, one must be very careful on what to believe in supported by factual and logical evidences.