Title: What Makes A Planet Habitable? What Does It Need To Sustain Life?
Headings: What Makes A Planet Habitable?
What Makes A Planet Habitable?
What Are the Factors that Make the Planet Habitable?
Taking Cues from Earth
Location in Habitable Zone (HZ)
Stability of Stars
Mass of the Planetary Body
Rotation and Revolution
A Molten Core
Holding an Atmosphere
Are there more habitable planets?
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Content: These conditions involve certain geochemical, astrophysical, astrological and geophysical criteria. According to NASA, for a celestial body to sustain life, there should be “extended regions of liquid water, conditions favorable for the assembly of complex organic molecules, and energy sources to sustain metabolism .” In gauging the habitability of a planet, a number of factors must be considered, including the planet’s bulk composition, orbital properties, atmosphere, and potential chemical interactions. Some of the requisite conditions are as follow. Location in Habitable Zone (HZ)
For a planet to sustain life, it has to be a comfortable distance away from a star, such as the sun of our solar system. Around a star, there is a shell-shaped region of space, called the Habitable Zone (HZ), where a planet can maintain liquid water on the surface. If a planet lies in this region, then there are good chances for the habitability of life on the surface. However, if life could exist without water in a certain part of the universe, then the definition of an HZ will change drastically. Also, since a star becomes more luminous as it ages, a planet must be farther away from it in the HZ to sustain life. Stability of Stars
An artist’s impression of a solar flare (Credits: