From Bangkok Post:
“The as-yet unnamed planet is only about one-and-a-half times the size of Earth and five times more massive, a team of European astronomers announced at the European Southern Observatory in Garching, Germany.”
If the planet is only about one-and-a-half times the size of Earth, how on Earth can it be five times more massive?
Technorati Tags: Gliese 581 habitable planet Earth Bangkok Post
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They probably mean the planet is 1.5 times the physical size of Earth but has five times its mass, as in it is denser.