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ESOcast 145 Light: First ELT Main Mirror Segments Successfully Cast (4K UHD) The first hexagonal segments for the main mirror of ESO’s Extremely Large Telescope (ELT) have been successfully cast by the German company SCHOTT at their facility in Mainz. These segments will form parts of the ELT’s 39-metre main mirror, which will have 798 segments in total when completed. The ELT will be the largest optical telescope in the world when it sees first light in 2024. Powered by WPeMaticoRead More →

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In: ESOcast, Podcast

ESOcast Light 145: First ELT Main Mirror Segments Successfully Cast The first hexagonal segments for the main mirror of ESO’s Extremely Large Telescope (ELT) have been successfully cast by the German company SCHOTT at their facility in Mainz. These segments will form parts of the ELT’s 39-metre main mirror, which will have 798 segments in total when completed. The ELT will be the largest optical telescope in the world when it sees first light in 2024. Powered by WPeMaticoRead More →

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ESOcast 142 Light: Stellar Nursery Blooms into View (4K UHD) The OmegaCAM imager on ESO’s VLT Survey Telescope at the Paranal Observatory in Chile has captured a glittering view of the stellar nursery called Sharpless 29. Many astronomical phenomena can be seen in the giant image, including cosmic dust and gas clouds that reflect, absorb, and re-emit the light of hot young stars within the nebula. Powered by WPeMaticoRead More →

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ESOcast 141 Light: ESPRESSO — the Next Generation Planet Hunter The Echelle SPectrograph for Rocky Exoplanet and Stable Spectroscopic Observations (ESPRESSO) successfully made its first observations in November 2017. Installed on ESO’s Very Large Telescope (VLT) in Chile, ESPRESSO will search for exoplanets with unprecedented precision by looking at the miniscule changes in the properties of light coming from their host stars. Powered by WPeMaticoRead More →

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ESOcast 140 Light: MUSE Dives into the Hubble Ultra Deep Field Astronomers using the MUSE instrument on ESO’s Very Large Telescope in Chile have conducted the deepest spectroscopic survey ever. They focused on the Hubble Ultra Deep Field, measuring distances and properties of 1600 very faint galaxies including 72 galaxies that have never been detected before, even by Hubble itself. This wealth of new information is giving astronomers insight into star formation in the early Universe, and allows them to study the motions and other properties of early galaxies — made possible by MUSE’s unique spectroscopic capabilities. Powered by WPeMaticoRead More →