Loading…
Loading contentLoading…
Loading contentA galaxy distorted from any regular form — by a close encounter, an ongoing merger, or an active nucleus. The tidal tails and bridges of interacting pairs, like the Antennae, are the clearest signs of galaxies in collision.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.