When amateur astronomer Richard Carrington gazed through his telescope on the morning of September 1st, 1859, he noticed something weird about the surface of the sun -- it seemed to have clusters of dark spots. Later historians would recognize this as the earliest observation of a solar flare -- and a little less than 18 hours later, the associated coronal m ... Show More
Today
The Chicago Tylenol Murders
<p>For most people, Tylenol is nothing more than an ol' stand-by, over-the-counter pain reliever. Yet, as Ben, Noel and Max learn in today's episode -- this wasn't always the case. Today's episode takes the boys to 1980s Chicago, when a ghoulish series of still-unsolved murders r ... Show More
39m 23s
Nov 22
CLASSIC: Benjamin Franklin's Advice On "Finding A Mistress"
<p>Founding Father Benjamin Franklin was a man of many interests, but his endeavors were by no means limited to technical innovation, philosophy and politics. In fact, throughout his life he had a reputation as an irredeemable lech -- literally, in later years, a dirty old man -- ... Show More
31m 43s
Nov 20
Wait! Can a tree really own itself?
<p>Do you have a favorite tree? In today's episode, Ben, Noel and Max head over to the famous college town of Athens, Georgia where -- legend has it -- one guy was so enamored with his childhood oak that he ultimately deeded it to itself. How much of the story is true? Can a tree ... Show More
42m 22s
May 2022
When Our Star Erupts - The 1859 Solar Storm And More
In 1859, astronomer Richard Carrington was studying the Sun when he witnessed the most intense geomagnetic storm recorded in history. The storm, triggered by a giant solar flare, sent brilliant auroral displays across the globe causing electrical sparking and fires in telegraph s ... Show More
12m 12s
Feb 2024
Exploring solar eclipses through time
<p>This week on Planetary Radio, we delve into the evolution of humanity's relationship with one of our planet's most awe-inspiring phenomena: total solar eclipses. Ed Krupp, the director of Griffith Observatory in Los Angeles, will share insights from the fascinating field of ar ... Show More
52m 8s
Oct 2021
SYMHC Classics: Tunguska Event
This 2018 episode covers an even from June 30, 1908, when at approximately 7:15am, the sky over Siberia lit up with what was described by witnesses as a massive fireball, or the sky engulfed in fire. For the last century, scientists have been trying to figure out exactly what hap ... Show More
26m 42s