Upcoming Frontiers
- LISA (Laser Interferometer Space Antenna): A space-based gravitational wave detector sensitive to supermassive black hole mergers, impossible to detect from Earth due to seismic noise.
- Next-Gen EHT: Adding more telescopes (including in space, like Millimetron) to increase resolution and sensitivity, allowing us to track dynamic changes in real-time.
- Multi-Messenger Synergy: Combining GW detections with EM follow-up to pinpoint host galaxies and study merger environments.
Open Questions
Despite these advances, key questions remain: What is the exact nature of the singularity? Does information truly escape Hawking radiation? How do black holes grow so large so quickly in the early universe?