Day 22 of the 2025 Space Telescope Advent Calendar: The Heart of a Tarantula
James Webb imaged the Tarantula Nebula's star-forming region, showing a cavity carved by radiation from massive young stars about 161,000 light-years away.
Day 21 of the 2025 Space Telescope Advent Calendar: Warped Space
Galaxy Cluster Abell 209's mass warps and magnifies background galaxies via gravitational lensing, producing stretched and smeared clumps visible in Hubble images.