Observation history, (supernova) In the 1960s astronomers found that the maximum intensities of supernova explosions could be used as standard candles, hence indicators of astronomical distances. Some of the most distant supernovae recently observed appeared dimmer than expected. This supports the view that the expansion of the universe is accelerating. Techniques were developed for reconstructing supernova explosions that have no written records of being observed. The date of the Cassiopeia A s

NEW: Astronomers Make First Radio Detection of Rare Supernova Type, Revealing Secrets of Stellar Death Brand new discovery from the Very Large Array! Astronomers have captured the first-ever radio signals from a rare class of stellar explosion known as a Type Ibn supernova. The team studied supernova SN 2023fyq, using the VLA’s powerful radio vision to track the radio emissions from this explosion over a span of 18 months. What did they find? 💥 The star, shedding its helium layers, underwent a