Venus two-way contact makes radar echo-return history

THE FIRST successful attempt to establish radar contact with the planet Venus was reported recently by a research team led by Dr. Robert Price and Dr. P. E. Green, Jr., from Lincoln Laboratory of the Massachusetts Institute of Technology (MIT). This experiment with radar astronomy achieved a one-hundredfold increase in the longest range ever attained with radar and is the first instance of a direct two-way contact with any celestial body at a distance that is far beyond the moon.