Super-Earth

Hefty rocky world

A Super-Earth is a type of exoplanet larger than Earth but smaller than Neptune—typically between two and ten times Earth's mass.

The term refers only to size, not habitability or composition; a Super-Earth might be rocky, gaseous, or covered in water.

Astronomers have discovered thousands of Super-Earths orbiting distant stars.

planetary

exoplanet

Planet outside our system

  • rockyCovered with stones
  • massQuantity of matter
  • radiusCenter-to-perimeter distance

habitable · dense · atmosphere · gravity · composition · silicate · mantle · detection · transit · Kepler

composition

rocky

Covered with stones

diamond · mantle · core · crust · differentiation · volatile · metallic · density · volcanism · outgassing

discovery

Kepler

Planetary motion law formulator

candidate · confirmed · catalog · observation · wobble · detection · characterization · follow-up · ground-based · space-based

habitability

biosignatures

Detectable signs of life

colonization · oxygen · pressure · climate · astrobiology · extraterrestrial · terraforming

Opposites
planetary mass/size

Super-Earthgas giant

Hydrogen-helium planetary body

dwarf planet · ice giant · planetesimal · rogue planet · asteroid

scale relative to earth

Super-EarthPluto

Kuiper Belt dwarf world

Ceres

Family

super, superior, earthy, earthquake, Earth, supernatural, earthly, supersede, superiority

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Positive · Rated G