Supernova explosions near our solar system can release radiation that can be recorded in tree rings, finds a new study from the University of Colorado. ThePrint’s Sandhya Ramesh explains how tree rings are studied and how supernovae thousands of light years away could leave a mark on plant life on earth.----more----Supplementary reading:International Journal of Astrobiology | Solar system exposure to supernova γ radiation https://www.cambridge.org/core/journals/international-journal-of-astrobiology/article/solar-system-exposure-to-supernova-radiation/93A83A960E20D33182A720A08D13F40C----more----CU Boulder Today | Tree rings may hold clues to earthly impacts of distant supernovas https://www.colorado.edu/today/2020/11/11/tree-rings-may-hold-clues-impacts-distant-supernovas-earth----more----NASA Climate | Tree rings provide snapshots of Earth's past climate https://climate.nasa.gov/news/2540/tree-rings-provide-snapshots-of-earths-past-climate/----more----Good journalism will thrive if good people pay for it . Please subscribe to ThePrint here: https://theprint.in/subscribe/ This also includes the link for overseas subscribers.