TSTI Admin No Comments March 30, 2026

Aristotle

A GreekA Greek philosopherA Greek philosopher (384-322 B.C.) who developed a complex, mechanical model of the universe. He also developed comprehensive rules to explain changes, such as the motion of objects. Aristotle made some mistakes, however. More (384-322 B.C.) who developed a complex, mechanicalA method to maintain a spacecraft's internal temperature using a closed-loop control system to measure current temperature and adjust inputs, outputs and internal heat flow. It requires a working fluid, heaters, pumps, or other mechanical devices. More model of the universeA Greek philosopher (384-322 B.C.) who developed a complex, mechanical model of the universe. He also developed comprehensive rules to explain changes, such as the motion of objects. Aristotle made some mistakes, however. More. He also developed comprehensive rules to explain changes, such as the motionA rotating object’s spin rate. We use the right-hand rule to determine its direction. More of objects. AristotleA Greek philosopher (384-322 B.C.) who developed a complex, mechanical model of the universe. He also developed comprehensive rules to explain changes, such as the motion of objects. Aristotle made some mistakes, however. More made some mistakes, however. More philosopherA GreekA Greek philosopher (384-322 B.C.) who developed a complex, mechanical model of the universe. He also developed comprehensive rules to explain changes, such as the motion of objects. Aristotle made some mistakes, however. More philosopherA Greek philosopher (384-322 B.C.) who developed a complex, mechanical model of the universe. He also developed comprehensive rules to explain changes, such as the motion of objects. Aristotle made some mistakes, however. More (384-322 B.C.) who developed a complex, mechanicalA method to maintain a spacecraft's internal temperature using a closed-loop control system to measure current temperature and adjust inputs, outputs and internal heat flow. It requires a working fluid, heaters, pumps, or other mechanical devices. More model of the universeA Greek philosopher (384-322 B.C.) who developed a complex, mechanical model of the universe. He also developed comprehensive rules to explain changes, such as the motion of objects. Aristotle made some mistakes, however. More. He also developed comprehensive rules to […]

TSTI Admin No Comments March 30, 2026

ascending node

The nodeThe node where the spacecraft goes from below the equatorThe node where the spacecraft goes from below the equator (Southern Hemisphere) to above the equator (Northern Hemisphere). More (Southern Hemisphere) to above the equatorThe node where the spacecraft goes from below the equator (Southern Hemisphere) to above the equator (Northern Hemisphere). More (Northern Hemisphere). More where the spacecraft goes from below the equatorThe nodeThe node where the spacecraft goes from below the equator (Southern Hemisphere) to above the equator (Northern Hemisphere). More where the spacecraft goes from below the equatorThe node where the spacecraft goes from below the equator (Southern Hemisphere) to above the equator (Northern Hemisphere). More (Southern Hemisphere) to above the equatorThe node where the spacecraft goes from below the equator (Southern Hemisphere) to above the equator (Northern Hemisphere). More (Northern Hemisphere). More (Southern Hemisphere) to above the equatorThe nodeThe node where the spacecraft goes from below the equator (Southern Hemisphere) to above the equator (Northern Hemisphere). More where the […]

TSTI Admin No Comments March 30, 2026

astrodynamics

The study of the moving objects under the influence of gravityA projectileA projectile with a prescribed path that cannot be altered after it has burned its propellant and the laws of ballistics govern its course. When gravity is the only force on it, its path is elliptical. More with a prescribed path that cannot be altered after it has burned its propellantA type of rocket system that heats a propellant by passing it through a sustained electric arc, then ejects the energized gas through a nozzle. Its specific impulse is high compared to chemical rockets, but its thrust is very low. More and the laws of ballistics govern its course. When gravityA projectile with a prescribed path that cannot be altered after it has burned its propellant and the laws of ballistics govern its course. When gravity is the only force on it, its path is elliptical. More is the only forceAn object's increasing speed toward Earth's center, caused by the force of gravity (the force of attraction between two objects). More on it, its pathThe elliptical-shaped path a satellite takes in going from one circular orbit to another as part of a Hohmann Transfer. More is elliptical. More from another body. Astrodynamicists designDesign is an intricate […]

TSTI Admin No Comments March 30, 2026

astronautics

The scienceThe science and technologyThe science and technology of spaceflight. It includes designing, building, testing, and deploying spacecraft, launch vehicles, launch complexes, and many more space-related facilities. More of spaceflight. It includes designing, building, testing, and deploying spacecraft, launch vehicles, launch complexes, and many more space-related facilities. More and technologyThe science and technology of spaceflight. It includes designing, building, testing, and deploying spacecraft, launch vehicles, launch complexes, and many more space-related facilities. More of spaceflight. It includes designing, building, testing, and deploying spacecraft, launch vehicles, launch complexes, and many more space-related facilities.

TSTI Admin No Comments March 30, 2026

astronomy

The science of the heavens. Ancient GreeksThe scienceThe science and technology of spaceflight. It includes designing, building, testing, and deploying spacecraft, launch vehicles, launch complexes, and many more space-related facilities. More of the heavens. Ancient GreeksThe science of the heavens. Ancient Greeks considered this to be a divine practice best understood through physical theories. More considered this to be a divine practice best understood through physical theoriesThe science of the heavens. Ancient Greeks considered this to be a divine practice best understood through physical theories. More. More considered this to be a divine practice best understood through physical theoriesThe scienceThe science and technology of spaceflight. It includes designing, building, testing, and deploying spacecraft, launch vehicles, launch complexes, and many more space-related facilities. More of the heavensThe science of the heavens. Ancient Greeks considered this to be a divine practice best understood through physical theories. More. Ancient GreeksThe science of the heavens. Ancient Greeks considered this to be a divine practice best understood through physical theories. More considered this to be a divine practice best understood through physical […]

TSTI Admin No Comments October 7, 2024

atmosphere

The atmosphereThe reference frameThe reference frame used to analyze a space vehicle’s motion after leaving orbit until it lands. Its origin is at the vehicle’s center of mass at the beginning of re-entry. More used to analyze a space vehicle’s motion after leaving orbit until it lands. Its origin is at the vehicle’s center of mass at the beginning of re-entryThe reference frame used to analyze a space vehicle’s motion after leaving orbit until it lands. Its origin is at the vehicle’s center of mass at the beginning of re-entry. More. More forms a thin layer around the EarthSolar energyWe use the angle of incidence, θ, to determine how much solar energy hits a solar panel. This angle lies between a line perpendicular to the cell and the Sun line. More reflected off Earth that accounts for about 20% of the total energy impacting low-Earth-orbiting spacecraft. […]

TSTI Admin No Comments March 30, 2026

atmospheric density

The amount of air within a certain volumeThe amount of air within a certain volumeThe amount of air within a certain volume. Atmospheric density is higher at sea-level and decreases as you go up in altitude. More. Atmospheric densityThe amount of air within a certain volume. Atmospheric density is higher at sea-level and decreases as you go up in altitude. More is higher at sea-level and decreasesThe amount of air within a certain volume. Atmospheric density is higher at sea-level and decreases as you go up in altitude. More as you go up in altitudeThe amount of air within a certain volume. Atmospheric density is higher at sea-level and decreases as you go up in altitude. More. More. Atmospheric densityThe amount of air within a certain volumeThe amount of air within a certain volume. Atmospheric density is higher at sea-level and decreases as you go up in altitude. More. Atmospheric densityThe amount of air within a certain volume. Atmospheric density is higher at sea-level and decreases as you go up in altitude. More is higher at sea-level and decreasesThe amount of air within a certain volume. Atmospheric density is higher at sea-level and decreases as you go up in altitude. More as you go up in altitudeThe amount of air within a certain volume. Atmospheric density is higher at sea-level and decreases as you go up in altitude. More. More is […]

TSTI Admin No Comments March 30, 2026

atmospheric pressure

The amount of air within a certain volume. Atmospheric density is higher at sea-level and decreases as you go up in altitude.

TSTI Admin No Comments March 30, 2026

atmospheric window

Atmospheric windows are the wavelengths that are 80%–100% transmitted through the atmosphere. The most notable atmospheric windows are the visible, infrared, and radio wavelengths. If your payload uses or senses EM radiationHigh-level, short-term radiationHigh-level, short-term radiation exposure, causing more damage to human tissue than the same level spread over a longer time. More exposureHigh-level, short-term radiation exposure, causing more damage to human tissue than the same level spread over a longer time. More, causing more damage to human tissue than the same level spread over a longer timeThe time between successive passages of the Sun overhead, which is from noon one day to noon the next day. Because Earth’s orbit around the Sun is slightly elliptical, this time varies slightly during a year. More. More from the planet, it’s […]

TSTI Admin No Comments October 7, 2024

atomic oxygen

A single atom of oxygen. It occurs in the upper atmosphere when solar radiationHigh-level, short-term radiationHigh-level, short-term radiation exposure, causing more damage to human tissue than the same level spread over a longer time. More exposureHigh-level, short-term radiation exposure, causing more damage to human tissue than the same level spread over a longer time. More, causing more damage to human tissue than the same level spread over a longer timeThe time between successive passages of the Sun overhead, which is from noon one day to noon the next day. Because Earth’s orbit around the Sun is slightly elliptical, this time varies slightly during a year. More. More and charged particlesParts of an atom with electrical charge. Protons are much larger than electrons, reside in an atom’s nucleus, and carry a positivecharge. Electrons orbit around the nucleus and carry a negative charge. More split a normal oxygenmolecule, O2, into two atomic oxygenA single atom of oxygen. It occurs in the upper atmosphereThe reference frame used to analyze a space vehicle’s motion after leaving orbit until it lands. Its origin is at the vehicle’s center of mass at the beginning of re-entry. More […]