The Cosmological Evolution Survey (COSMOS) is an astronomical survey designed to probe the formation and evolution of galaxies as a function of both cosmic time (redshift) and the local galaxy environment.

This image shows the full COSMOS field at one tenth resolution. COSMOS - the Cosmic Evolution Survey - is the Hubble Space Telescope's largest ever survey of the Universe and was carried out by an international team of 70 astronomers.

May 11, 2025 - This includes careful analysis of the dependence of galaxy evolution on environment. The survey covers a field, often known as the COSMOS field, of 2 square degrees of sky in the constellation Sextans.

September 25, 2024 - The Cosmic Evolution Survey (COSMOS) was a wide field observational astronomy project. It was aimed at observing the correlation between galaxies, star formations, active galactic nuclei and dark matter and how they evolve, with large-scale ...

It carries out an ambitious programme focused on the design, construction and operation of powerful ground-based observing facilities for astronomy.

The COSMOS field with six galaxies picked out. For each of the six, its appearance in visible light is shown, from the Hubble Space Telescope, along with a spectra from the W. M. Keck observatory, along with the time the light has been travelling for. Image credit: ESA/Herschel/SPIRE/HerMES; NASA/ESA; Caltech/W.M.

This sea of galaxies is the complete, original COSMOS field from the Hubble Space Telescope’s Advanced Camera for Surveys (ACS). The full mosaic is a composite of 575 separate ACS images, where each ACS image is about one-tenth the diameter of the full Moon.

August 17, 2025 - The Cosmological Evolution Survey (COSMOS) is the largest Hubble mosaic of the sky. It covers two square degrees of sky. By comparison, the Earth's moon is one-half degree across.

September 3, 2018 - These sources are considered AGN ... 1σ sensitivity of 10 μJy/beam in the central part of the field. The COSMOS project is aimed at probing the evolution of galaxies through cosmic time (Scoville et al....

August 29, 2025 - This sea of galaxies is the complete, original COSMOS field from the Hubble Space Telescope’s Advanced Camera for Surveys (ACS). The full mosaic is a composite of 575 separate ACS images, where each ACS image is about one-tenth the diameter of the full Moon.

June 12, 2025 - ... The largest map of the universe reveals over 800,000 galaxies | A new collaborative project dubbed the COSMOS-Web field has compiled the most comprehensive cosmic map ever, including images of the early universe as far back as 13.5 billion years.

This visible-light wide-field image ... Sky Survey 2. The extent of the COSMOS field, one of the most studied parts of the sky with telescopes on the ground and in space, is marked with a blue square....

This view shows part of the COSMOS field in the constellation of Sextans (The Sextant), as viewed by the UltraVISTA survey in infrared light. This region of sky has been extensively studied by many telescopes, including Hubble.

November 28, 2017 - We have observed 2865 known radio sources from Schinnerer et al. (2010) with the VLBA in the Cosmic Evolution Survey (COSMOS) field. COSMOS is an astronomical survey designed to probe the formation and evolution of galaxies as a function of cosmic time and large-scale structural environment ...

"Cosmos" in astronomy is the harmonious and orderly whole, a system that is governed not by human or supernatural laws but by natural law. In astronomy, cosmos refers to objects that exist naturally, especially those visible in the sky.

This image shows the full COSMOS field at one tenth resolution. COSMOS - the Cosmic Evolution Survey – is the Hubble Space Telescope’s largest ever survey of the Universe and was carried out by an international team of 70 astronomers. In making the COSMOS survey, Hubble photographed 575 adjacent and slightly overlapping views of the universe using the Advanced Camera for Surveys' (ACS) Wide Field Camera onboard Hubble.

July 6, 2025 - Last month, the team released the C.O.S.M.O.S. 2025 galaxy catalog, a rich collection of many physical parameters of over 700,000 galaxies located in a region of the sky called the C.O.S.M.O.S. field.