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before the international space station

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before the hubble space telescope before

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the shuttle

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before sky lab before apollo

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before nasa even

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there was

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and spitzer report presented by nasa the

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national aeronautics and space

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administration

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[Applause]

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75 years ago astronomer lyman spitzer

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envisioned a future for space

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exploration that changed our

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understanding of the cosmos and our

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place in it a visionary behind the

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hubble space telescope spitzer was among

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the earliest astronomers pioneering a

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revolutionary way to explore the

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universe through astronomical satellites

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with the publication of this famed paper

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in 1946 astronomical advantages of an

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extraterrestrial observatory

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spitzer explored the benefits of

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launching a large reflecting telescope

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into orbit around our planet

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his proposal placed these telescopes

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outside of the constraints of earth's

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atmosphere enabling both greater access

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to wavelengths of light not visible from

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the ground and higher quality images

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free of atmospheric effects

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spitzer made a strong case for large

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space telescopes that would allow

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humanity to access unseen parts of the

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universe

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understanding the magnitude of the

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universe and exploring the structures of

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galaxies globular star clusters and

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other planets were the ultimate goals of

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orbiting observatories

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spitzer's vision in 1946 marked a new

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era for the field of astronomy and 75

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years later space-based telescopes like

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hubble are our best lens into the cosmos

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above earth's atmosphere our unimpeded

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view allows us to see billions of light

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years back in time helping us understand

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the evolution of galaxies and the

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universe itself we've seen celestial

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objects and phenomena through light not

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visible by the human eye offering us a

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new perspective of our place in the

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universe

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spitzer recognized that space telescopes

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would enable humanity to explore beyond

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our frontier of knowledge to uncover new

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phenomena not yet imagined and perhaps

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to modify profoundly our basic concepts

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to this day the hubble space telescope

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remains a testament to spitzer's vision