SYMHC Classics: The Discovery of 'Planet...

<p>The first installment of the deeper examination of Charles Sumner's life begins with his early years, including his close relationships with Henry Wadsworth Longfellow and Samuel Gridley Howe.</p> <p><strong>Research:</strong></p> <ul> <li>"Sumner, Charles (1811-1874)." Encycl ... Show More

<p>This 2019 episode covers Thomas Cook, a pioneer of the idea of a travel agency to manage tourist holidays. But Cook was initially motivated by his support of the temperance movement and his deeply held religious beliefs.&nbsp;</p><p>See <a href="https://omnystudio.com/listener ... Show More

<p>Tracy and Holly talk about the proclivity for destruction that was part of the balloon craze. They also discuss cat trees and how hard it is to find one that's cute.&nbsp;</p><p>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.< ... Show More

<p>Sure today Mars would kill you with its thin, toxic atmosphere and cold desert temperature swings of 100 degrees,but early on it and Earth were practically twins. Find out how the two planets diverged and if there might be life on the Red Planet, in this classic episode.</p><p ... Show More

It seems like we largely take it for granted these days, but the fact that we have humans living in space is the realization of a scientific dream a century old. Visit the space stations orbiting Earth past, present and future in this classic episode.See omnystudio.com/listener f ... Show More

From the ancient Egyptians to 16th-century scientists to NASA today — fascination with the Red Planet spans thousands of years. But Mars holds endless mysteries. How close are we to finding them out? Learn more about your ad choices. Visit podcastchoices.com/adchoices 

<p>Dive into the latest discoveries about Jupiter’s moons Ganymede, Europa, and Io with Scott Bolton, the principal investigator for NASA’s Juno mission. We share analysis of the data collected by the spacecraft and look forward to upcoming exploratory missions to Jupiter’s moons ... Show More

<p>Since the Kepler telescope went online, astronomers have found there may be an estimate 40 billion planets like Earth in the Milky Way galaxy alone. What does it take for a planet to be considered Earth-like?</p><p> </p> Learn more about your ad-choices at <a href="https://www ... Show More

<p>How much junk can we accumulate in Earth's orbit before we seal off our world? Before we cut the planet off from the cosmos and doom civilization to a new dark age? In this episode, Robert and Julie look skyward to space exploration's garbage.</p><p> </p> Learn more about your ... Show More

Pluto may not be a planet, but it definitely exists. Not every case is so clear. The history of near-Earth astronomy contains many cases of bodies that may or may not have ever existed in the solar system we call home. In this episode of Stuff to Blow Your Mind, Robert Lamb and J ... Show More

How did the planets form? How did life happen? Where did Earth’s water come from? To answer questions like these, scientists used to go big—looking at planets, dwarf planets, and moons—but now small is the new big. Technology is zooming in on the pint-size stuff—asteroids, comets ... Show More

<p>NASA Jet Propulsion Lab scientists Armin Kleinboehl and Marek Slipski lead a new project that is recruiting thousands of citizen explorers. They explain to host Mat Kaplan how this massive effort may help us finally understand how the once plentiful Martian surface water disap ... Show More