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Pérez-González is the principal investigator of SHARDS, a survey seen through the OSIRIS (Optical System for Imaging and low-Intermediate Resolution Integrated Spectroscopy) instrument of Gran Telescopio Canarias (GTC). He and his team recently published their findings in The Astrophysical Journal. Previously, massive disc and spheroidal galaxies were thought to form in just one way. SHARDS and Hubble data that had been beamed back revealed something surprising. “We have been able to detect two modes of formation of bulges, in two waves, which should help to improve galaxy formation ...

  Ancient galaxy clusters have been described as “the dark skeletons of the cosmos.” Astronomers at the Instituto de Astrofísica de Canarias (IAC) have found the most densely populated galaxy cluster in formation in the primitive universe. The researchers predict that this structure, among the largest astronomical objects in the Universe, which is at a distance of 12.5 billion light years from us, will have evolved becoming a cluster similar to the 1,300 galaxies of the Virgo Cluster, a neighbor of the Local Group of galaxies to which harbors our home galaxy, the Milky Way. The Dark Ske...

 E-Mail IMAGE: Image of the studied galaxy cluster in formation, 12.5 billion light years from us. The circles indicate the new members discovered with the GTC, 4 of them are shown in... view more  Credit: Credit: NASA/ESA/GOODS-N+3DHST+CANDELS Team/Daniel López/IAC A study, led by researchers at the Instituto de Astrofísica de Canarias (IAC) and carried out with OSIRIS, an instrument on the Gran Telescopio Canarias (GTC), has found the most densely populated galaxy cluster in formation in the primitive universe. The researchers predict that this structure, which is at a distance ...