EditorialAn undated photo provided by the Cerro Tololo Inter-American Observatory in Chile shows the Victor M. Blanco 4-meter Telescope dome, where a Dark Energy Camera detects asteroids that orbit between Earth and the sun. (CTIO/NOIRLab/NSF/AURA/D. Munizaga via The New York Times)
EditorialThe asteroid Apophis recorded by radio antennas at the Deep Space Network’s Goldstone complex in California and the Green Bank Telescope in West Virginia. (NASA/JPL-Caltech and NSF/AUI/GBO via The New York Times)