Roman Space Telescope Redshift Infographic

  • Released Tuesday, March 22, 2022

This graphic illustrates how cosmological redshift works and how it offers information about the universe’s evolution. The universe is expanding, and that expansion stretches light traveling through space. The more it has stretched, the greater the redshift and the greater the distance the light has traveled. As a result, we need telescopes with infrared detectors to see light from the first, most distant galaxies.Credit: NASA, ESA, Leah Hustak (STScI)

This graphic illustrates how cosmological redshift works and how it offers information about the universe’s evolution. The universe is expanding, and that expansion stretches light traveling through space. The more it has stretched, the greater the redshift and the greater the distance the light has traveled. As a result, we need telescopes with infrared detectors to see light from the first, most distant galaxies.

Credit: NASA, ESA, Leah Hustak (STScI)

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Please give credit for this item to:
NASA, ESA, Leah Hustack (STScI)

Release date

This page was originally published on Tuesday, March 22, 2022.
This page was last updated on Wednesday, May 3, 2023 at 11:44 AM EDT.


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