A new frontier in astrobiology
The Square Kilometre Array (SKA) is currently undergoing a multi‑year construction phase and will become the world’s most powerful radio telescope once completed. Its one‑square‑kilometre collecting area will allow it to capture extremely faint radio emissions from the farthest reaches of the universe.
Technological advances and scientific objectives
Modular design and state‑of‑the‑art signal processing give the SKA the ability to produce both high‑resolution images and precise spectral data. These capabilities are expected to play a central role in the search for potential life signatures on exoplanets by targeting characteristic molecules such as hydrogen, oxygen or methane in distant atmospheres.
Scientific expertise
In a newly released book chapter, Dr. Chenoa Tremblay and co‑authors outline how the SKA could help answer the fundamental question “Are we alone?”. They argue that the combination of extreme sensitivity and a broad frequency range enables the detection not only of natural electromagnetic emissions but also of possible technosignatures from advanced civilizations.
Outlook and international collaboration
The SKA will operate from sites in South Africa and Australia, bringing together research institutions from more than a dozen nations. After the construction phase, regular observations are slated to begin around 2028, establishing a new benchmark for radio astronomy.