Summary:
- Astronomers have observed a "cosmic volcano" erupting from a supermassive black hole at the center of a galaxy located 236 million light-years away.
- This black hole had been dormant for about 100 million years but has now reawakened, spewing out a powerful jet of plasma and energy.
- The eruption provides insights into the life cycle of supermassive black holes and how they interact with their host galaxies over long timescales.