Terrestrial planet Terrestrial planet A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars. The terms "terrestrial planet" and "telluric planet" are derived from Latin words for Earth ("Terra" and "Tellus"), as these planets are, in terms of structure, "Earth-like". Terrestrial planets have a solid planetary surface, making them substantially different from the larger giant planets, which are composed mostly of some combination of hydrogen, helium, and water existing in various
Solar Decathlon Latin America and Caribbean Solar Decathlon Latin America and Caribbean The Solar Decathlon is an initiative of the Department of Energy of the United States (DOE) in which universities around the world compete with the design and construction of sustainable housing that works 100% with solar energy. It is called “Decathlon" since universities and their prototypes are evaluated in 10 criteria: architecture, engineering and construction, energy efficiency, energy consumption, comfort, sustainability, positioning, communications, urban design and feasibility and innovation. The 2019 edition of the Solar Decathlon Latin America and Caribbean will take place in Cali, Colombia. The first Solar Decathlon Latin America and Caribbean