Share this postScience Sundays #19explore.discoverydose.comCopy linkFacebookEmailNoteOtherDiscover more from Discovery DoseBecome smarter, one dose at a time.Over 1,000 subscribersSubscribeContinue readingSign in Science Sundays #19Here’s your daily dose of Physics Facts!Discovery DoseMay 14, 20233Share this postScience Sundays #19explore.discoverydose.comCopy linkFacebookEmailNoteOtherShareThe cosmic microwave background radiation is a faint glow of radiation left over from the big bang, and is thought to be the oldest light in the universe.Loading...Help us spread the knowledge by sharing our content with your favorite people!ShareIf you haven’t already, join thousands of discoverers who are becoming smarter every day!Subscribe