I. What is a Heliocentric Orbit? A heliocentric orbit is an orbit around the Sun. In this type of orbit, an object, such as a planet or spacecraft, revolves around the Sun as its primary focus. The term “heliocentric” comes from the Greek words “helios,” meaning Sun, and “kentron,” meaning center. This concept was first … Read more
I. What is an Inertial Guidance System? An Inertial Guidance System is a navigation system used in rockets and other vehicles to determine their position, orientation, and velocity without the need for external references such as GPS or landmarks. This system relies on the principles of physics to track the movement of the vehicle and … Read more
I. What is a Gravity Turn? A gravity turn is a maneuver used in rocketry to efficiently navigate a spacecraft from its initial launch trajectory into orbit. Instead of following a straight path into space, a gravity turn involves tilting the rocket gradually as it ascends, taking advantage of the Earth’s gravity to help guide … Read more
I. What is a Methalox Engine? A Methalox engine is a type of rocket engine that uses a combination of methane (CH4) and liquid oxygen (LOX) as propellants. The term “Methalox” is derived from the combination of methane and liquid oxygen. Methane is a hydrocarbon that is abundant on Earth and can be produced sustainably, … Read more
I. What is an Oxidizer? An oxidizer is a substance that can undergo a chemical reaction with another substance, known as a fuel, in which the oxidizer donates oxygen atoms to the fuel. This reaction results in the release of energy in the form of heat and light. Oxidizers are essential components in many chemical … Read more
I. What is Regenerative Cooling? Regenerative cooling is a method used in rocket propulsion systems to cool the engine components by circulating a coolant through channels within the walls of the combustion chamber and nozzle. This process helps to dissipate the extreme heat generated during the combustion of propellants, allowing the engine to operate at … Read more
I. What is a Kick Stage? A Kick Stage is a small, upper stage rocket component that is used in space missions to provide additional propulsion to a payload after it has been released from the main rocket. It is typically used to place the payload into its final orbit or trajectory, making it a … Read more
I. What is an Ion Thruster? Ion thrusters are a type of propulsion system used in spacecraft to generate thrust by accelerating ions. Unlike traditional chemical rockets that rely on combustion to produce thrust, ion thrusters use electricity to ionize propellant and create a stream of charged particles that are expelled at high speeds to … Read more
What is Newton’s Third Law of Motion? Newton’s Third Law of Motion states that for every action, there is an equal and opposite reaction. This means that whenever one object exerts a force on a second object, the second object exerts an equal and opposite force back on the first object. In simpler terms, this … Read more
I. What is the Rocket Equation? The Rocket Equation, also known as the Tsiolkovsky Rocket Equation, is a fundamental equation in astronautics that describes the motion of vehicles that follow a basic principle of action and reaction. It is used to calculate the velocity change (delta-v) that a rocket can achieve based on the mass … Read more