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Homepage of the Observational Cosmology group of the Physics Department - University of Milan

The group. From left to right: Francesco Cavaliere, Cristian Franceschet, Nicoletta Krachmalnicoff, Simona Donzelli, Marco Bersanelli, Benedetta Cappellini, Davide Maino, Maurizio Tomasi, Mariachiara Rossetti, Aniello Mennella, Bruno Paroli, Paola Battaglia, Francesco Del Torto.


Cosmology studies the Universe as a whole and tries to answer very fundamental questions like: when did the Universe begin? How is it evolving? What will be its ultimate destiny? Experimental cosmology addresses these questions by looking at the sky at its largest scales, where galaxies and galaxy clusters are like sparse grain sands in an immense void space.

The experimental cosmology group at the Physics Department of the University of Milan is very active in this fascinating and involving field, and participated for more than ten years in the development of Planck, the European space mission dedicated to the measurement of the Cosmic Microwave Background (CMB), the first light of the Universe.

Planck, launched on May 14th, 2009, is now flying and taking data, and our group is actively involved in its data analysis, exploiting its experience to understand the instrument response and uncover the underlying science. Looking ahead we are also deeply involved in the development of a future balloon experiment (The Large Polarization Explorer, LSPE) for measuring the polarization of the CMB, a even feebler signal that carries the imprint of the first instants of the Big Bang.

Last, but not least, we explore connections between our everyday life and the microwave technologies we develop to look at the dawn of time. Microwaves have several industrial applications in the fields of medicine, transport, communication, energy, etc., and our group is developing contacts with industries and universities both in Italy and abroad to find alternative and useful ways to apply our know how. Communication with people is another important aspect of our activity and many of us are active in popularization activities also involving other disciplines like theater, cinema, video, music. 

the Universe as seen by Planck:

 cmbr planck 3600