Hubblecast 60: Galaxy scores a bullseye

Episode 60 of the Hubblecast explores NGC 922, a galaxy that has been hit square-on by another. Ripples of star-formation are still propagating out across thousands of light-years of space over 300 million years after the collision, making it a prime example of what astronomers call a collisional ring galaxy.

More information and download-options:

Credit:
ESA/Hubble
Visual design and editing: Martin Kornmesser
Web and technical support: Mathias Andre and Raquel Yumi Shida
Written by: Oli Usher
Narrator: Sara Mendes da Costa
Images: NASA, ESA, Chandra X-ray Observatory, Digitized Sky Survey 2
Visualisations and animations: B. Conn (MPIA), R. Smith (University of Concepción), R. Taylor (Arecibo Observatory); M. Kornmesser
Music: Toomas Erm
Directed by: Oli Usher
Executive producer: Lars Lindberg Christensen

[habaninja]

I am surprised no one pointed out that when one object collides with another object there would be damage to both objects and some debris of the event. So saying you can see a galaxy through another galaxy is like saying you can see someone through the screen door. This is not evidence.