What Does FIRST Stand For?

FIRST stands for Faint Images Of The Radio Sky At Twenty Centimeters

FIRST, or Faint Images of the Radio Sky at Twenty Centimeters, is a radio astronomy survey that maps the sky at a wavelength of 20 centimeters. Conducted using the Very Large Array (VLA) in the United States, FIRST aims to catalog faint radio sources, providing valuable data for studies in cosmic microwave background radiation, galaxy formation, and the evolution of the universe. The survey enhances our understanding of the universe by revealing diverse astronomical objects, including distant galaxies, quasars, and cosmic structures.

Other Meanings for FIRST