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December 24, 2025
Day 24 of the 2025 Space Telescope Advent Calendar: A Gravitational Lens
Day 24 of the 2025 Space Telescope Advent Calendar: A Gravitational Lens. Galaxies in this James Webb Space Telescope image appear to be stretched into arcs and lines, their appearance warped and magnified by powerful gravitational lensing in Galaxy Cluster Abell S1063, which bends the light of more distant galaxies as it passes through on its way to Earth.
TL;DR
- The image is part of the 2025 Space Telescope Advent Calendar.
- It features a gravitational lens in Galaxy Cluster Abell S1063.
- Gravitational lensing bends and magnifies light from more distant galaxies.
- Distant galaxies appear stretched into arcs and lines due to the lensing effect.
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