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[Music]

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the universe

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for all we have learned about it we have

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only just begun to reveal its secrets

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what are dark matter and dark energy

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how common are planetary arrangements

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like our own

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and how many planets in our galaxy have

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the potential to harbor life

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the nancy grace roman space telescope

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will help answer these fundamental

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questions

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formerly known as wfirst the roman space

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telescope is similar to hubble but with

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the benefit of 30 years of technological

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improvement

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each image from its wide field

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instrument will have the depth and

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clarity of hubble's best but capture a

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sky area 100 times larger

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the roman space telescope will take the

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lead in exploring dark energy and dark

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matter

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we only know they exist by their effects

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on observable matter yet these two

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mysterious components make up 95 of the

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universe

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the roman space telescope's powerful 2.4

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meter mirror an enormous field of view

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will also help us in the search for

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planets beyond our solar system or

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exoplanets

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it will watch for gravitational

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microlensing events caused when a planet

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and its host star pass in front of a

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background star

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such events are rare so catching them

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requires watching large swaths of the

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sky

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to deepen its study of exoplanets the

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roman space telescope will house a

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beyond state-of-the-art coronagraph that

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will directly image and analyze

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neptune-sized planets in orbit slightly

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larger than earth's a dramatic

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improvement over current capabilities

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the nancy grace roman space telescope

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will help us answer many of the biggest

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cosmic questions its wide field view and

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coronagraph will complement missions

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like nasa's james webb space telescope

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and transiting exoplanet survey

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satellite tess

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the roman space telescope will be an