Department of Astronomy

Latest News

The age of the Sun depends on when you look at it

Previously thought to be negligible, the Sun’s magnetic activity is influencing the determination of its seismic age, as shown by a study published by an international team led by a researcher from the UNIGE.

The density difference of sub-Neptunes finally deciphered

An international team led by UNIGE, UNIBE and PlanetS has shown the existence of two distinct populations of sub-Neptunes, resolving a debate in the scientific community.

Eruption of mega-magnetic star lights up nearby galaxy

Thanks to ESA satellites, an international team including UNIGE researchers has detected a giant eruption coming from a magnetar, an extremely magnetic neutron star.

Gaia spots a large dormant black hole in our Galaxy

A high-mass stellar black hole has been discovered in preliminary data from the Gaia satellite by an international team led by UNIGE astronomers.

The baritones among Red giants refine cosmic distance measurements

A fresh look at Red giant stars offers key insights into cosmic distance measurements and a way to measure the Universe's expansion with the highest accuracy.

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