Retrieving "Earth Masses" from the archives
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Exoplanet
Linked via "Earth masses"
Rocky Worlds and Super-Earths
Rocky Worlds are those with radii less than about $1.5 R\oplus$ (Earth radii) and masses below $10 M\oplus$ (Earth masses), suggesting a predominantly silicate or iron composition. Super-Earths occupy the mass range between $10$ and $50 M_\oplus$. Many Super-Earths exhibit high atmospheric pressures sustained by unusually dense clouds composed primarily of metallic [lithium… -
Exoplanets
Linked via "Earth masses"
Super-Earths and Mini-Neptunes
These two categories represent the most common types of exoplanets discovered thus far. Super-Earths are terrestrial planets with masses between $1$ and $10$ Earth masses ($M{\oplus}$), while Mini-Neptunes (or sub-Neptunes) are gaseous envelopes surrounding a solid core, with radii between $1.7$ and $4.0$ Earth radii ($R{\oplus}$). The boundary between these two classes is known as the "radius valley," where planets appear to lose their gaseous envelopes due to [photoevaporation](/entries/photoevaporation… -
Solar System (sol System)
Linked via "Earth masses ($M_\oplus$)"
Beyond the Asteroid Belt lies the Outer Solar System, dominated by the four gas giants and ice giants: Jupiter (planet)/), Saturn (planet)/), Uranus (planet)/), and Neptune (planet)/). These worlds possess significant atmospheres composed primarily of hydrogen and helium, with icy cores.
[Jupiter (planet)](/entries…