Which galaxy has the largest known star-forming ring?
Quick Answer
The Cartwheel Galaxy is famous for its enormous ring-like structure and star formation triggered by a collision. Its outer ring spans about 150,000 light-years across.
The Full Story
The Cartwheel Galaxy, about 500 million light-years away in the constellation Sculptor, is one of the best-known ring galaxies. A head-on collision with a smaller galaxy likely produced its distinctive expanding ring and intense star formation. The galaxy’s outer ring is roughly 150,000 light-years in diameter, larger than the Milky Way. The collision created shock waves that compressed gas and led to the birth of many new stars. It is a striking example of how galaxy interactions can reshape entire systems.
Key Facts
YouTube Angle
Suggested video title for this topic:
"A galaxy hit by another galaxy and turned into a cosmic wheel."
Was this answer helpful?
Tap a reaction — it helps us pick what to cover next.