Cosmic dawn observational progress with NenuFAR

The NenuFAR Cosmic Dawn project has taken an important step in the exploration of the Cosmic Dawn, this key period in our universe marked by the formation of the first stars. An upper limit on the amplitude of the neutral hydrogen fluctuations at 21 cm from this distant time was established using the NenuFAR radio telescope. This advance represents a crucial step in our efforts to unravel the mysteries of the first stars formation.