Astronomers Capture 2 Million MPH Galactic Collision with Sonic Boom

TL;DR
Astronomers have observed a powerful shock wave in Stephan's Quintet, caused by the galaxy NGC 7318b colliding with its neighbors at 2 million mph. This cosmic event, akin to a sonic boom, has energized plasma and possibly triggered star formation. The study, using the WEAVE spectrograph, aims to provide insights into galaxy interactions and cosmic history, with findings published in the Monthly Notices of the Royal Astronomical Society.
- Astronomers spot 1 of the most powerful 'sonic booms' in the universe as massive galaxy crashes into its neighbors Livescience.com
- 2-million-mile-per-hour galactic crash reawakens a dangerous 'cosmic crossroads' Space.com
- Powerful telescope captures rogue galaxy colliding with another at 2 million mph Yahoo! Voices
- Two million mph violent galaxy collision in space ...Tech and Science Daily podcast Evening Standard
- Two-million-miles-per-hour galaxy collision seen in detail Irish Independent
Want the full story? Read the original reporting
Read on Livescience.com