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    • In Depth - NASA Science

      In Depth - NASA Science

      NASA· 3 hours ago

      An exoplanet, or extrasolar planet, is a planet outside of our solar system that usually orbits another star in our galaxy.

    • What is the Universe? - NASA Science

      What is the Universe? - NASA Science

      NASA· 3 hours ago

      The universe is everything. It includes all of space, and all the matter and energy that space contains. It even includes time itself and, of course, it...

    • Stars in an Exoplanet World - NASA Science

      Stars in an Exoplanet World - NASA Science

      NASA· 3 hours ago

      Stars are the most basic building blocks of galaxies. The age, distribution, and composition of stars trace the history, dynamics, and evolution of their...

    • Letter: A planetary tale about Earth

      Quad-City Times· 4 days ago

      It so happened that the planets of the Milky Way Galaxy organized to promote the common good of all the planets and of the billions of ...