Super-Earths

Definition

Super-Earths are exoplanets with a mass larger than Earth's but significantly less than that of ice giants like Uranus and Neptune. They can have a variety of compositions, including rocky, gaseous, or a mix of both.

5 Must Know Facts For Your Next Test

1. Super-Earths typically have masses between 1 and 10 Earth masses.
2. These planets can be found in a wide range of orbital distances from their host stars.
3. Some super-Earths lie within the habitable zone where conditions might support liquid water.
4. Their atmospheric compositions can vary greatly, influencing their surface conditions and potential for life.
5. The discovery of super-Earths has challenged our understanding of planet formation and diversity.

Review Questions

• What mass range defines a super-Earth?
• Why are super-Earths significant when considering the potential for habitability?
• How do super-Earths differ in composition from gas giants like Jupiter?

Related terms

Exoplanet: A planet located outside our Solar System.

Habitable Zone: The region around a star where conditions may be right to support liquid water on a planet's surface.

Planetary Formation: The process by which a planetary system forms around a new star.