A galaxy in the early universe observed by the ALMA telescope. The galaxy is considered already mature, because it contains large amounts of dust (yellow) and gas (red). © B. Saxton NRAO/AUI/NSF, ALMA (ESO/NAOJ/NRAO), ALPINE team.
A galaxy in the early universe observed by the ALMA telescope. The galaxy is considered already mature, because it contains large amounts of dust ( yellow ) and gas ( red ). B. Saxton NRAO/AUI/NSF, ALMA (ESO/NAOJ/NRAO), ALPINE team. The galaxies in the early universe are much more mature than astrophysicists first thought: their existence at such an early stage is due to their interactions with the cosmos. The first galaxies were formed 200 million years after the birth of the universe. These galaxies accumulated the vast majority of the stars, dust particles and metals they consist of between one and three billion years after the Big Bang, a crucial period for our understanding of how the galaxies were formed. Astronomers from the University of Geneva , based at the Geneva Observatory - together with the ALPINE project's international consortium of astronomers - have studied 118 galaxies from this period using the ALMA telescope in the highlands of Atacama in Chile.
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