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Hubble Space Telescope

James Webb Space Telescope Euclid Observatory Astronomical Observations Imaging Techniques Comet Imaging Image Processing Ultraviolet Imaging Euclid Mission Globular Cluster Observations Advanced Imaging Auroral Observations NASA Observational Astronomy

Hubble–Euclid Team-Up Unveils Multiscale Portrait of the Cat’s Eye Nebula

Paired space-telescope views map the nebula across scales, from halo to core.

Candidate Ultra-Faint Galaxy in Perseus Appears 99% Dark Matter