Desert Planets - Planets in SF Notes 2/18/25 Lecture 13

Desert planets

Characterized by extreme aridity, minimal vegetation, and temperature fluctuations.

Monochromatic planets

Planets that are single color or single climate.

Subterranean water reservoirs

Hidden water sources beneath the surface that support oases and ecosystems.

Solar constant

The energy received at the top of Earth’s atmosphere from the Sun at 1 astronomical unit, measured as 1366 W/m².

Greenhouse effect

The warming caused by the absorption of infrared energy by Earth's atmosphere.

Sublimation

The process of water ice turning directly into water vapor without becoming liquid.

Astronomical unit (AU)

The average distance from the Earth to the Sun.

Energy distribution

The way energy from the Sun is dispersed over the Earth's surface, influenced by its axis.

Tilt of Earth's axis

The angle at which Earth is tilted, affecting climate by influencing sunlight received.

Extreme environments

Harsh conditions often found on desert planets that provide tension in storytelling.

Canopus

A bright star around which Arrakis orbits, characterized by its massive size and luminosity.

Eridani system

The triple star system that includes the fictional planet Vulcan from Star Trek.

Vulcan

A desert planet from the Star Trek universe with very little surface liquid and a reddish sky.

Arrakis

A desert planet from Dune known for its vast deserts and the valuable spice melange.

Mars

A desert planet with seasons, known for its polar ice caps and historical evidence of water.

Ecosystem adaptation

The process by which species develop traits to thrive in specific climatic conditions.

Radiation modulation

Variations in radiation that can affect the evaporation of water on planets.

Invasive species

Non-native organisms that, when introduced, can disrupt the local ecosystem, as seen on Arrakis.

Climate variations

Differences in climate across regions due to factors like topography and sunlight.

Hero's Journey of a planet

Concept where a planet has a history, story arc, and character-like traits in storytelling.

Planetary degradation

Decline in a planet's environmental state, often due to external or internal factors.

Habitability prospects

The potential for a planet to support life, which may improve with reduced humidity.

Desert planet characteristics

Environments that serve to create tension, motivate characters, and act as narrative devices.

Water retention

The ability of planets to hold water on their surface, which can be influenced by climate conditions.

Surface bombardment

An event that can lead to the loss of surface water on a planet, often through warfare.

Colossal sandworms

Iconic creatures of Arrakis that are essential to its ecosystem and spice production.

Desert flora and fauna

Plant and animal life that has adapted to survive in arid conditions.

Climate influences

Local factors contributing to climate, including sunlight, topography, and atmospheric conditions.