inner planets
outer planets
dwarf planets
rocky planets
habitable planets
exoplanets discovered
planets orbiting
planets alignment
planets classification
there are eight planets in our solar system.
scientists study the atmospheres of distant planets.
some planets have rings made of ice and rock.
planets orbit around the sun in elliptical paths.
jupiter is the largest of all the planets.
some planets may have conditions suitable for life.
we can observe the planets with a telescope.
mercury is the closest planet to the sun.
planets can be classified as terrestrial or gas giants.
astrobiologists search for signs of life on other planets.
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