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Hubble Space Telescope Frontier Fields and Parallels

This is a gallery of the Hubble Space Telescope Frontier Fields. The top six panels are massive galaxy clusters that act as huge lenses in space, magnifying and stretching images of remote galaxies behind each cluster that are too faint for Hubble to see directly. While one of the telescope’s cameras looked at each cluster of galaxies, another camera simultaneously viewed an adjacent patch of sky. This second region is called a "parallel field" — a seemingly sparse portion of sky that provides a deep look into the early universe. Astronomers observed each of the six clusters and six parallel fields in both near-infrared and visible light. This allowed scientists to create more detailed, overlapping, and complete images.

Object Name
Object NameA name or catalog number that astronomers use to identify an astronomical object.
Abell 2744, MACS J0416.1-2403, MACS J0717.5+3745, MACS J1149.5+2223, Abell S1063, Abell 370
Object Description
Object DescriptionThe type of astronomical object.
Galaxy Clusters, Gravitational Lens, and Parallel Fields
Release Date
May 4, 2017
Science Release
A Lot of Galaxies Need Guarding in This NASA Hubble View
Read the release
Credit
NASA, ESA, STScI, and the HFF team

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Last Updated

Aug 17, 2025

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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov

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