Coming up at 12:30: Astrophysics professor @DrRob_Thacker joins @MarkDayNews for his weekly science segment: 📻:… twitter.com/i/web/status/1…

Coming up at 12:30: Astrophysics professor @DrRob_Thacker joins@MarkDayNews for his weekly science segment:📻:… twitter.com/i/web/status/1…