Large radio telescopes are essential tools for astronomical research, allowing scientists to observe celestial phenomena by detecting radio waves emitted from various sources in the universe.

The Allen Telescope Array (ATA) is the first radio telescope to be designed ... A secondary mirror bounces incoming radio signals collected by the large (6.1 meter diameter) primary reflector back to ...

It comprises an array of 42 antennas, each 6 meters in diameter, which can be simultaneously used for both SETI and cutting-edge radio astronomy research. The ATA is currently being upgraded with more ...