September 2016

Artist's impression of a portion in the timeline of the Universe, around the epoch of reionization (Image ESA – C. Carreau)

Two articles published in the journal “Astronomy and Astrophysics” describe the latest updates regarding the analysis of the data collected by ESA’s Planck Surveyor space probe between 2009 and 2013. The latest results show that the first stars started forming about 700 million years after the Big Bang, about 150 million years later than earlier analyzes indicated.