After years of development, the moment has finally arrived: a massive cryostat, an exceptionally advanced freezer, has ...

The frame of the dome that will house the world's largest telescope has been completed, marking another key milestone in the observatory's construction. The European Southern Observatory's (ESO) ...

The upcoming Extremely Large Telescope is designed to capture images with far greater detail than any ground-based ...

Using ESO’s Very Large Telescope and the W.M. Keck Observatory, astronomers at the Ecole Polytechnique Fédérale de Lausanne in Switzerland and the California Institute of Technology, USA, have ...

The Southern African Large Telescope, Africa’s largest optical telescope, has celebrated its 20th anniversary of astronomical ...

Members of the research team Grace Chesmore (left) and Katie Harrington (right) open the front of the tester used to analyze the Simons Observatory Large Aperture Telescope receiver optics. CREDIT ...

A nested series of dusty spirals is captured swirling around a mighty triple star system containing two of the rarest stars ...

More than 100 years ago, astronomer George Ellery Hale brought our two Pasadena institutions together to build what was then the largest optical telescope in the world. The Mt. Wilson Observatory ...

Recently discovered interstellar comet 3I/ATLAS have been captured using the European Southern Observatory's Very Large ...

A new generation of extremely large telescopes requires fresh approaches to correct for the blurring effects caused by the Earth’s atmosphere, as Richard de Grijs, one of an international team of ...