
Radio Sky Census Unveils 13.7 Million Hidden Objects
Scientists released the LOFAR DR3 dataset—the largest radio sky survey to date—mapping about 13.7 million radio-emitting objects across 88% of the northern sky, drawn from 18.6 petabytes of data processed with Europe’s supercomputers; the survey reveals extreme phenomena like black-hole jets and distant active galaxies, and demonstrates the massive data-handling required to stitch signals from 70,000 antennas, setting the stage for future SKA projects and widespread follow-up studies.










