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This image presents a grid of colour-enhanced astronomical observations, each depicting a circumstellar disc—structures of dust and gas surrounding stars. Every square in the grid represents a different star system, identified by catalogue names such as “HD 105”, “HD 377”, or “TWA 25”. The discs vary widely in shape, size, and orientation: some appear as well-defined rings, while others show elongated or irregular forms. The colour palette, dominated by purples and oranges, highlights brightness and contrast to reveal structural details. This visual diversity reflects different physical properties and evolutionary stages of the star systems, offering valuable insights into planetary formation and stellar development.

Images of dust around distant exoplanets provide a glimpse of asteroids and comets in other solar systems more

Patzer Award winner 2025

In keeping with tradition, three scientists were once again awarded the Ernst Patzer Prize for the support of young scientists this year. Michael Cecil (MPIA), Elisa Schoesser (ZAH) and Xiangyu Zhang (MPIA) were honored at the award ceremony on November 28 as part of a festive colloquium at the Max Planck Institute for Astronomy (MPIA). more

Four lasers for the VLTI

A few days ago, the Very Large Telescope Interferometer (VLTI) at the European Southern Observatory (ESO) in Chile succeeded for the first time in using four lasers to create artificial stars in the upper atmosphere, enabling the four 8-meter telescopes of the VLTI to perform outstandingly sharp observations of the sky. The lasers are part of the GRAVITY+ upgrade of the VLT interferometer. This upgrade also increases the sensitivity of the system by a factor of 10 and makes it possible to study celestial objects at virtually any point in the sky. more

A comparatively short, large telescope inside a dome

New instrument will provide numerous high-resolution spectra, complementing existing data more

Aerial view of the campus of the Max Planck Institute for Astronomy (MPIA) on the Königstuhl hill in Heidelberg. In the foreground at the lower right stands the Haus der Astronomie, a modern white building in a spiral shape with a green roof. To its left are several additional institute buildings with flat roofs, some fitted with solar panels, and a new construction site with a crane and yellow scaffolding. In the lower left, two white domes of small observatories are visible. Parking areas with cars are located in front of the buildings. The entire campus is surrounded by dense green forest. In the background stretches the Neckar valley with the city of Heidelberg, the river with bridges, and the wide Upper Rhine Plain extending to the horizon.

On the initiative of the Max Planck Institute for Astronomy (MPIA), an Onboarding Day for the business trainees of the Heidelberg Max Planck Institutes was held for the first time on 4 September 2025. more

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