Planetary Science Glossary

I. What is Planetary Science Instrumentation? Planetary science instrumentation refers to the tools and devices used to study planets, moons, asteroids, and other celestial bodies in our solar system. These instruments are designed to collect data, analyze samples, and capture images that help scientists better understand the composition, structure, and behavior of these objects. Planetary … Read more

I. What are Impact Craters? Impact craters are circular depressions on the surface of a planet, moon, or asteroid that are formed by the impact of a meteoroid, asteroid, or comet. These craters can vary in size from a few meters to hundreds of kilometers in diameter, depending on the size and velocity of the … Read more

I. What are Martian Dust Storms? Martian dust storms are a common occurrence on the red planet, with some being small and localized while others can cover the entire planet. These storms are made up of tiny dust particles that are lifted into the atmosphere by strong winds. The dust particles can reach heights of … Read more

I. What is a Space Agency’s Planetary Science Division? A Space Agency’s Planetary Science Division is a branch of the organization dedicated to studying and exploring planets, moons, asteroids, and other celestial bodies within our solar system and beyond. These divisions are responsible for conducting research, developing missions, and collecting data to further our understanding … Read more

I. What is Planetary Resource Utilization? Planetary Resource Utilization, also known as In-Situ Resource Utilization (ISRU), is the process of utilizing resources found on other planets or celestial bodies to support human exploration and settlement in space. Instead of relying solely on resources from Earth, ISRU aims to use the materials available on other planets … Read more

I. What is Planetary Paleoclimatology? Planetary Paleoclimatology is the study of past climates on planets within our solar system and beyond. By analyzing geological and atmospheric data, scientists can reconstruct the climate history of a planet, providing valuable insights into its evolution and potential habitability. This field of study is crucial for understanding the complex … Read more

I. What are cometary tails? Cometary tails are one of the most iconic features of comets. They are long, bright streams of gas and dust that extend away from the comet’s nucleus. These tails can stretch for millions of kilometers and are often visible from Earth as the comet approaches the sun. Cometary tails are … Read more

I. What are Planetary Atmospheres? Planetary atmospheres are the layers of gases that surround a planet and are held in place by the planet’s gravity. These atmospheres are crucial for sustaining life on a planet, as they regulate temperature, protect against harmful radiation from space, and provide the necessary gases for respiration. The composition and … Read more

I. What is Planetary Orbital Resonance? Planetary orbital resonance is a phenomenon that occurs when two or more celestial bodies exert a gravitational influence on each other, causing their orbits to become synchronized. This synchronization results in a specific ratio between the orbital periods of the bodies, leading to a stable and predictable pattern of … Read more

I. What are Terrestrial Planets? Terrestrial planets are a type of planet that are primarily composed of silicate rocks or metals. They are also known as rocky planets or inner planets, as they are located closer to the sun compared to gas giants. Terrestrial planets have solid surfaces and are smaller in size compared to … Read more