Astrophysicist Kumiko Kotera is using radio antennas to detect neutrinos and uncover the history of the universe [1].
These elusive particles serve as cosmic messengers because they rarely interact with matter, allowing them to travel from the most energetic and distant processes in space without being blocked. Understanding them helps scientists map the early universe and the mechanisms of massive cosmic events.
Kotera, the director of the Institut d'Astrophysique de Paris and a CNRS research director, said neutrinos are nearly impossible to catch [1]. Despite their rarity in interaction, billions of neutrinos pass through a human body every second [1].
To capture these signals, researchers are employing new techniques involving radio antennas. This approach aims to identify the origin of neutrinos and what they reveal about the evolution of the cosmos [1]. The ability to track these particles allows scientists to look back at events that light cannot penetrate.
Recent advancements in the field include the JUNO observatory in China. This facility collected data for less than two months before reporting neutrino measurements with record precision [2]. Reports on this Chinese research surfaced earlier this month [3].
Scientific debate continues regarding the role of neutrinos in cosmic stability. Some research suggests changes in neutrino flavor could trigger supernovas, causing violent explosions [4]. Other perspectives suggest these particles may have played a role in preventing the universe from self-destruction [5].
Kotera said the goal is to capture the secret signals of the universe to understand its fundamental origins [1].
“Billions of neutrinos pass through a human body every second”
The transition toward radio-antenna detection and high-precision observatories like JUNO marks a shift in neutrino astronomy. By moving beyond traditional detection methods, scientists can potentially resolve contradictions regarding whether neutrinos trigger or prevent cosmic catastrophes, ultimately providing a clearer timeline of the universe's expansion and structural formation.
