2-million-mile-per-hour galactic crash reawakens a dangerous 'cosmic crossroads' - Space.com
- 2-million-mile-per-hour galactic crash reawakens a dangerous 'cosmic crossroads' Space.com
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- Astronomers spot 1 of the most powerful 'sonic booms' in the universe as massive galaxy crashes into its neighbors Livescience.com
- Powerful telescope captures rogue galaxy colliding with another at 2 million mph Yahoo! Voices
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