![](/template/termwiki/images/likesmall.jpg)
Home > Industry/Domain > Astronomy > Planetary science
Planetary science
The scientific study of planets including Earth, moons, and planetary systems of the Solar System in particular and the processes that form them.
Industry: Astronomy
Add a new termContributors in Planetary science
Planetary science
Evening star
Astronomy; Planetary science
A planet, not a star, that can be seen in the west just after sunset and it is usually Venus or Mercury.
Interplanetary
Astronomy; Planetary science
Existing or happening between planets. A satellite that is launched from the Earth to orbit Mercury travels through interplanetary space.
Jupiter
Astronomy; Planetary science
The planet that is fifth in distance from Sun. It is the largest planet in the Solar System.
Planet
Astronomy; Planetary science
An object in outer space that moves around a star, such as the Sun, and that is larger than an asteroid.
![](https://accounts.termwiki.com/thumb1.php?f=simple-sugar-molecul-1346723727.jpg&width=150&height=100)
Simple sugar molecule
Astronomy; Planetary science
Also called glycolaldehyde, the simple sugar molecule is composed of carbon, hydrogen and oxygen and plays a key role in the chemical reaction that forms ribonucleic acid (RNA), a crucial biomolecule ...
Earth
Astronomy; Planetary science
The planet on which humans live. Earth is the third planet from the Sun and is the fifth largest planet in the Solar System.
Saturn
Astronomy; Planetary science
A planet that is sixth in distance from the Sun and is the second largest planet in the Solar System.