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astronomers have found hundreds and

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hundreds of planets around other stars

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we call these exoplanets now we're only

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able to guess a little tiny bit about

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them just based on how close they are to

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their parent star and how big they are

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but from that alone we know that they

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come in a huge variety there are planets

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with the density of styrofoam there are

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planets that are as hot as cool stars

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there are planets that are frozen blocks

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of ice and their planets so hot that

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they probably hosts lava oceans

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now the finessed mission is going to

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take the next step to really understand

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in detail what these worlds are like

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finess will measure light from these

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worlds and break that light apart into

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different colors and that way we can

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measure the fingerprints of molecules

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like water and methane and carbon

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dioxide and by detecting these molecules

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we can learn something about the

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temperature the chemistry and in some

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cases even the weather on these worlds

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around other stars

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finesse will do this for 200 planets

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across a whole range of the exoplanet

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family and by making this measurement of

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this large sample we're going to know

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how our own earth and the planets in our

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own solar system fit into this family

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portrait that finesse is going to take

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now in so doing we connect with this

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very big question which humankind has

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been pondering for thousands of years

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which is are we alone and how do we fit