For astrophysicist Tonima Tasnim Ananna, an early fascination with the cosmos began during routine power outages in Dhaka, Bangladesh. The rolling blackouts cleared light pollution from the city streets, offering a vivid window into the night sky.

Today, Ananna translates that childhood wonder into groundbreaking research on supermassive black holes at Wayne State University in Michigan, Scientific American said in its latest “Future of Science” report.

Her investigation focuses on active galactic nuclei (AGNs)–the brilliant, high-energy regions powered by the universe’s most ravenous supermassive black holes. As matter spirals into a black hole’s gravitational pull, gas and dust form a rapidly spinning, white-hot structure known as an accretion disk.

The intense friction and heat within this disk produce radiation capable of outshining entire galaxies, making AGNs major drivers of galactic evolution.

A primary challenge in observing AGNs stems from donut-shaped rings of gas and dust, known as tori, which orbit far outside the accretion disks and frequently block direct view of the black holes.

Ananna’s team addresses this hurdle by fusing multi-wavelength observations across optical, infrared, and X-ray spectra. Her multi-wavelength approach reveals that these obscuring tori actually serve as powerful diagnostic indicators rather than mere barriers.

By analysing how radiation from the accretion disk interacts with the surrounding material, her findings indicate that the disk’s energy actively influences the size, shape, and orientation of the surrounding torus.

Understanding these interactions is vital to solving larger cosmic questions. Supermassive black holes and their host galaxies appear to co-evolve in locked step, yet the mechanics driving this relationship remain an area of intense research.

By mapping how AGNs interact with their immediate environments, scientists gain key insights into the life cycles of galaxies throughout the universe.