Astronomers have found a trio of "Super-Earth" planets---- meaning that they are Earth-like but big. And big is big, so these planets are packed with niftyness.
"None can be imaged directly at such distances but can be spotted indirectly using radio waves or, in the case of HARPS, spectrographic measurements. As a planet orbits, it makes the star wobble very slightly and this can be measured."
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