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Rutherfordium is a chemical element with symbol Rf and atomic number 104, named in honor of physicist Ernest Rutherford.
The astronomers Arno Penzias and Robert Wilson discovered the cosmic microwave background (CMB) radiation by chance in the mid-1960s while using the Holmdel Horn Antenna in New Jersey to map the sky. The CMB was later mapped with satellites, including the WMAP probe.