An infographic shows giant gas planet, a small, terrestrial planet, a planet bigger than Earth, but smaller than Newptune.

Exoplanets, planets beyond our solar system, whether orbiting other stars or floating freely between them, can make the planets closer to home look tame by comparison. “Hot Jupiters” are star-hugging, infernal worlds. “Super-Earths” are super mysterious. Frozen planets, gas giants that make Jupiter look puny, or small, rocky planets in Earth’s size range but in tight orbits around red dwarf stars – the catalog keeps growing.

Credit

NASA-JPL/Caltech

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