Euclid Telescope Captures Largest Image of Milky Way’s Center, Boosting Exoplanet Discovery Astronomers have unveiled the most detailed and expansive image ever captured of the Milky Way’s galactic center, revealing over 60 million stars in a dazzling display of cosmic light. The image, taken by the European Space Agency’s Euclid telescope, marks a significant milestone in the study of dark forces shaping the universe and opens new avenues for discovering planets beyond our solar system. The telescope’s advanced camera, capable of resolving individual stars in the densely packed galactic bulge, has produced a mosaic of nine separate observations, each covering an area of the sky larger than the full moon. The Euclid telescope, launched in 2023 at a cost of €1 billion, was originally designed to construct the most accurate 3D map of the cosmos. However, its ability to capture this unprecedented view of the Milky Way’s core has proven to be a game-changer for planetary science. The image, taken in March 2024 after 26 hours of observations, provides a unique opportunity to study the dynamics of stars in this region. Dr. Eamonn Kerins, an astrophysicist at the University of Manchester’s Jodrell Bank Centre for Astrophysics, highlighted the telescope’s unexpected utility, stating, “It was never built with this science in mind, but it has proved to be a superb facility for the work.” The image’s significance extends beyond its visual appeal. It will accelerate the search for exoplanets, or planets orbiting stars outside the solar system. One key method for detecting these worlds involves microlensing, where the gravity of a star bends light from a distant star, creating a brightening effect.#european_space_agency #euclid_telescope #university_of_manchester #jodrell_bank_centre_for_astrophysics #nancy_grace_roman_space_telescope
ESA’s Euclid captures the Milky Way’s crowded heart For the first time, the European Space Agency’s Euclid telescope turned its attention to the Milky Way’s densest region—the galactic bulge—capturing an image that reveals the intricate details of this stellar hub. This unique observation was requested by astronomers seeking to leverage Euclid’s capabilities in studying exoplanets through a technique called microlensing. Designed to map the universe’s dark matter and dark energy, Euclid’s visible light camera is sensitive enough to distinguish individual stars in the bulge, a feat rarely achieved by ground-based telescopes. The image, spanning an area 270 times larger than the Hubble Space Telescope’s field of view, highlights Euclid’s efficiency in capturing faint stellar details and its potential to support future planet-hunting missions like NASA’s Roman telescope. Microlensing, the technique central to this study, relies on the gravitational bending of light from distant stars by closer objects. When a star passes in front of another, its gravity acts as a cosmic magnifying glass, temporarily brightening the background star’s light. If a planet orbits the foreground star, its gravity further distorts the light, creating a subtle but detectable anomaly. This method is particularly effective for finding cold, icy exoplanets, which are often missed by other planet-hunting techniques. Euclid’s image of the galactic bulge includes 51 known planetary systems, offering a foundation for analyzing future discoveries. The data collected by Euclid during its one-day observation provides a critical time reference for upcoming missions.#european_space_agency #euclid_telescope #milky_way #microlensing_technique #ogle_2005_blg_390lb
