Tuning In the Radio Sky

  title={Tuning In the Radio Sky},
  author={Robert Irion},
  pages={830 - 833}
  • R. Irion
  • Published 3 May 2002
  • Physics
  • Science
HAT CREEK RADIO OBSERVATORY, CALIFORNIA-- The world9s largest telescope may rise next decade with a radical new design: many receivers linked by cheap electronics. The Square Kilometer Array (SKA) would gather radio waves with a combined detecting area of a full square kilometer, making it 100 times more sensitive than any existing array. SKA would expose the now-invisible era when hydrogen first clumped together, tracing the "cosmic web" of dark matter that underlies all structure in the…