January 16, 2009

X-Shooter goes on sky again (Day 0 and 1)

This and the posts that will follow in the next days is the report of the second Commissioning of the X-Shooter spectrograph, which has just started. I am now sitting in the control room of the VLT, in Cerro Paranal, […]
December 10, 2008

Light echo allows astronomers to type a 400 years old supernova

Taking advantage of the light echo phenomenon, an international team of astronomers has been able to observe the spectrum of a supernova exploded 400 years ago, and it was able to determine its type.