News

Commemoration of the Liège 1983 earthquake

On Wednesday 8 November 1983, 40 years ago, a medium-sized earthquake shook the city of Liège. This earthquake occurred in the middle of the night at 1:49 am local time (0:49 UTC) and had its epicenter in the commune of Saint-Nicolas, a densely populated municipality west of the city of Liège. This is the last earthquake with significant damage in [...]

Gaia Observes a Cosmic Clock Inside a Large Planetary Nebula

The ESA Gaia mission website recently published an image of a planetary nebula, supplemented with three years of data gathered by the satellite. Inside this object, twinkles a blue dot with a very regular pulse of light. This is the mother binary star system of the planetary nebula. Truly a hefty cosmic clock in our galaxy!  [...]

Dust played a major role in dinosaur demise

Fine dust from pulverized rock generated by the Chicxulub impact likely played a dominant role in global climate cooling and the disruption of photosynthesis following the event. This is suggested by a new study published in Nature Geoscience, in which researchers Cem Berk Cenel, Özgür Karatekin and Orkun Temel of the Royal Observatory of Belgium contributed. [...]

A molten layer at the base of the Martian mantle?

Brussels, 26 October 2023 – The analysis, by a team of scientists involved in the InSight mission, of seismic data recorded on Mars after a meteorite impact that occurred in September 2021 drastically changes our view of the internal structure and evolution of the Red Planet. Based on these results and previous geophysical data, a study published on October 26 [...]

Building the most detailed 3D map of the Milky Way: Belgian astronomers contribute to the Gaia Focused Product Releases

Brussels, 10 October 2023 – Today the European Space Agency (ESA) and the Gaia collaboration teams are publishing new data in the form of five Focused Product Releases. The results are very promising, making of this delivery a first teaser of what will be the fourth version of the Gaia catalogue (Gaia DR4), expected by the end of 2025.
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Solar Orbiter discovers tiny jets that could power the solar wind

ESA’s Solar Orbiter spacecraft has discovered a multitude of tiny jets of material escaping from the Sun’s outer atmosphere. Each jet lasts for between 20 and 100 seconds, and expels plasma at around 100 km/s. These jets could be the long-sought-after source of the ‘solar wind’. [...]