Highest-energy Cosmic Ray // Io's Volcanic Activity // December Skywatch | S26E147

The Space News Podcast.SpaceTime Series 26 Episode 147*Detection of one of the highest-energy cosmic ray everIn 1991, the University of Utah Fly’s Eye experiment detected the highest-energy cosmic ray ever observed. Then on May 27, 2021, the Telescope Array experiment detected what is now the second-highest extreme-energy cosmic ray ever recorded and the source is still a mystery. *Pinpointing the source of Io's volcanic activityA new study suggests that most of the Jovian Moon Io’s tidal, heating is concentrated within its upper mantle. *Ariane 6 successfully completes its hot-fire testThe European Space Agency's new Ariane 6 rocket has successfully completed a key engine firing test in preparation for next year’s maiden flight. December Skywatch The December solstice, the ticking time bomb that is Eta Carinae and the rock comet Phaethon are among the highlights of the December night skies on SkyWatchListen to SpaceTime on your favorite podcast app with our universal listen link: https://spacetimewithstuartgary.com/listen and access show links via https://linktr.ee/biteszHQFor more SpaceTime and show links: https://linktr.ee/biteszHQBecome a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support.