News
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KiDS doesn't shake up cold dark matter model after all28 March 2025Data from 41 million galaxies does not shake up the standard cosmological model after all. To that conclusion, to their own surprise, comes an interna...
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Protoplanetary discs are much smaller than previously thought26 March 2025Many protoplanetary discs in which new planets are formed are much smaller than thought. Using the Atacama Large Millimeter/submillimeter Array (ALMA)...
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Leiden researchers discover oxygen in the most distant known galaxyGroundbreaking 20 March 2025Two teams of astronomers, including one from Leiden University, have discovered oxygen in the most distant known galaxy, JADES-GS-z14-0. This groundbr...
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White dwarf with partner flashes every two hours12 March 2025An international team of astronomers has shown that a white dwarf and a red dwarf orbiting each other every two hours are emitting radio pulses. Throu...
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Eruptions of yellow hypergiants: these are the latest revelations21 February 2025They are among the rarest and most extremely luminous stars in our universe: yellow hypergiants. Their spectacular eruptions have intrigued astronomer...
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‘World leader in star-planet interactions’ appointed professor13 February 2025Aline Vidotto has been appointed professor of Stellar and Planetary Astrophysics at the Observatory from 1 February. Vidotto has been with the univers...
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Last starlight for space telescope Gaia17 January 2025ESA’s space telescope Gaia, which maps the Milky Way, completes its active phase of scanning the sky on 15 January. Over the past decade, Gaia has mad...
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Lost sulfur in the universe found in salt on dust and pebbles16 January 2025An international team led by astronomers at Leiden University has shown in laboratory experiments that sulfur can bind with ammonium under icy cosmic ...
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Erik Deul receives royal decoration12 December 2024Erik Deul was awarded a royal decoration on Wednesday afternoon. He has been appointed Knight of the Order of Oranje-Nassau. Mayor Peter Heijkoop of L...
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Shocks in space: student Adriaan explores the universe around protostars09 December 2024Protostars, data science, and the James Webb Space Telescope—Adriaan Janssen’s curiosity knows no bounds. As a double bachelor’s student in Physics an...
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Dust inhibits shock wave in iconic group of galaxies26 November 2024The shock wave triggered by one of the five galaxies making up the iconic Stephan’s Quintet appears to be less disruptive than previously thought, wit...
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Historical telescope returns to the Old Observatory15 November 2024The Old Observatory in Leiden has reclaimed its most important telescope. Since the 1960s, the Meridian Circle (also known as a transit telescope) had...
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From atoms to the cosmos: ‘Everything in the universe is connected’14 November 2024Exploring the largest structures in the universe by looking at the tiniest particles? Lydia Stofanova, PhD candidate at Leiden Observatory and SRON Ne...
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Astronomers Discover Ancient Solitary Quasars with Mysterious Origins18 October 2024An international team of astronomers, including Leiden PhD student Elia Pizzati, has observed several ancient quasars that, surprisingly, appear to be...
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Dozens of massive stars launched from young star cluster R13609 October 2024Astronomers have used data from the European Gaia Space Telescope to discover 55 high-speed stars launched from the young star cluster R136 in the Lar...