The largest observation program of the James Webb Space Telescope (JWST) has released its data: nearly 800,000 galaxies observed in unprecedented detail. COSMOS-Web thus offers the most extensive and deepest view of the universe ever obtained. In this data release, the Instituto de Astrofísica de Canarias (IAC) has played a key role, performing the morphological classification of more than half a million galaxies using neural networks, a crucial contribution to explore how galaxies form and evolve over cosmic time. COSMOS-Web was the largest General Observer program selected for Cycle 1 of

A study published today in Nature Astronomy , in which a researcher from the IAC has participated, outlines the discovery of an extremely rare type of binary system composed of two high mass white dwarfs. The two stars are so close together that they will eventually collide resulting in a supernova explosion which, due to its proximity to the Earth, will appear ten times brighter than the Moon. Type 1a supernovae are a class of cosmic explosion often used as "standard candles" to measure the expansion of the Universe. They occur when a white dwarf exceeds the Chandrasekhar mass - the limit

An international team of researchers, including researchers from the IAC, have studied in detail a remarkable couple of dwarf galaxies “dancing with each other” inside an unpopulated area of the Universe. This uncommon pair of low-mass galaxies merging “in the middle of nowhere”, near the center of a cosmic void, offers a unique view of one-on-one interactions and of the evolution of galaxies located in very low density environments. Researchers from the Calar Alto Void Integral-field Treasury surveY (CAVITY) project, led by the University of Granada, have discovered a rare and ongoing