NSF ngVLA Prototype Reaches First Light, Testing Design for 244-Antenna Array
Updated
Updated · Newswise · May 20
NSF ngVLA Prototype Reaches First Light, Testing Design for 244-Antenna Array
1 articles · Updated · Newswise · May 20
The ngVLA prototype antenna has moved from construction into astronomical testing after making its first independent observations and operating with the NSF Very Large Array in New Mexico.
Tests used the prototype to track the Sun and the Crab Nebula, then added it as a 28th antenna to the VLA to observe Perseus A, an active galactic nucleus 230 million light-years away.
The prototype is validating a proposed 244-antenna network spanning more than 5,000 miles across North America, aimed at delivering 10 times the collecting area and resolution of the current VLA and ALMA at similar wavelengths.
NSF NRAO will spend the coming months refining the antenna through more calibration and target planning, while the broader project is also expected to support New Mexico jobs, offices, tourism and STEM education.
What cosmic secrets, currently invisible to us, will the ngVLA's tenfold power boost finally reveal?
A telescope spanning North America will create a data flood. Is our technology truly ready for the challenge?
ngVLA Prototype Reaches First Light: Unveiling the Future of 244-Antenna, Terabyte-Scale Radio Astronomy
Overview
On April 29, 2026, the Next Generation Very Large Array (ngVLA) prototype antenna achieved its "first light," marking a major milestone for the project. This event, announced in May 2026, signaled the transition from construction and engineering to initial astronomical testing. The successful "first light" demonstrated the prototype's readiness for operation and validated its advanced capabilities. This achievement followed the formal handover of the antenna for testing in April 2025, and now the prototype is successfully collecting and processing radio signals from space, paving the way for the full ngVLA array.