Unexpected changes of bright spots on Ceres discovered

New and very precise observations using the HARPS spectrograph with the ESO 3.6-metre telescope in Chile have not only detected the motion of the enigmatic bright spots on Ceres due to the dwarf planet’s rotation about its axis, but also found unexpected additional variations suggesting that the material of the spots is volatile and evaporates in sunlight.

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The lives of sibling stars in open cluster IC 4651

Most stars form within clusters and these clusters can be used by astronomers as laboratories to study how stars evolve and die. The cluster captured here by the Wide Field Imager (WFI) at ESO’s La Silla Observatory is known as IC 4651, and the stars born within it now display a wide variety of characteristics.

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Buried in the heart of a giant

This is a young open cluster of stars known as NGC 2367, an infant stellar grouping that lies at the centre of an immense and ancient structure on the margins of the Milky Way, captured by the Wide Field Imager (WFI) camera on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile.