It has a minimum mass of 3.1 Earth masses.

The ice giants, with only a few Earth masses of nebular gas, never reached that critical point.

Planetesimals beyond the frost line accumulated up to four Earth masses within about 3 million years.

Earth mass is often used to describe masses of rocky terrestrial planets.

It is presumed to be at least 1.5 Earth masses.

They know that it's three hundred and twenty times Earth mass, but that's the wrong number to use.

Venus, which has 85 percent Earth's mass, shows no signs of tectonic activity.

Hidden within was a core of rock and metals at 2.5 Earth masses.

The observation revealed data that the exoplanet was at least 4.15 Earth masses.

Later observations revealed that the minimum mass is now 3.1 Earth masses.