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• Photons of light from ancient galaxies reached the James Webb telescope in 13 billion years. • The universe was already involved in the process of star formation a short time after the big bang. • The oldest known galaxy in the universe, JADES-GS-z13-0, photographed by a telescope. • Other ancient galaxies are also creating new stars at rates comparable to the Milky Way. • The James Webb Telescope was launched in 2021 and started taking pictures of space last year. • The anniversary of the operation of the telescope was marked last week by NASA. • Photos of JADES-GS-z13-0 and its ancient partner galaxies are causing a stir among cosmologists and astrophysicists. • The James Webb Telescope studies the early universe, the pinpointing of life-supporting planets, and the formation of stars.