#New large optically bright supernova remnant discovered
“#New large optically bright supernova remnant discovered” MDW Hα image of G107.0 9.0 revealing numerous filaments along its northern, western and southwestern limbs. Credit: Fesen et al., 2020. Astronomers have reported the discovery of a new galactic supernova remnant (SNR) in the Cepheus constellation. The newly detected SNR is relatively large and optically bright, but…