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Ep. 175: Mysteries of the Sola...

Ep. 175: Mysteries of the Solar System, Part 2
Apparently this is at least a 2 part series. This week we continue examining some of the baffling mysteries of the Solar System, where we fill your head with more questions than answers. Sometimes we've just got to share the enjoyment of not knowing the answer. ...
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Ep. 174: Mysteries of the Sola...

Ep. 174: Mysteries of the Solar System, Part 1
We know a lot about our Solar System, but there's an awful lot that's a complete and total mystery. Today we're going to begin a series of unknown length examining some of these mysteries, and explain the best theories astronomers have so far. ...
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Ep. 173: Herschel Space Observ...

Ep. 173: Herschel Space Observatory
Last week we talked about Herschel the people – William Herschel, his sister Caroline, and his son John. This week we look at the Herschel Space Observatory, a mission launched in 2009 to reveal the coldest and dustiest regions in the Universe. ...
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Ep. 172: William Herschel...

Ep. 172: William Herschel
Ancient astronomers knew of 5 planets, Mercury, Venus, Mars, Jupiter and Saturn – 6 if you count Earth. But then in 1781, William Herschel discovered an entirely new planet, boosting the number of planets to 7. Let's learn about Herschel, his equipment, his...
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Ep. 171: Solar System Movement...

Ep. 171: Solar System Movements and Positions
Even in ancient times, astronomers realized there was something different about the planets – they move! The movement of the planets and their moons are governed by gravity. And as we all know, gravity can do some funny things. ...
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Ep. 170: Coordinate Systems...

Ep. 170: Coordinate Systems
This is going to be one of those weeks where we tackle something you're mentally avoiding. You know all those astronomical terms, like alt-azimuth, right ascension and declination, arc seconds and arc minutes? Of course not, your mind has blocked them out. Today...
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Ep. 169: The Fermi Mission...

Ep. 169: The Fermi Mission
Last week we talked about Fermi the man, now we're going to talk about Fermi the space telescope. That's right, Enrico Fermi made such an impact in the astronomy and physics community that he got a space telescope named after him. Let's take a look at...
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Ep. 168: Enrico Fermi...

Ep. 168: Enrico Fermi
Enrico Fermi Today's episode of Astronomy Cast is about another famous physicist: Enrico Fermi. We've already taken a look at one of Fermi's most famous ideas, the Fermi Paradox – or, where are all the aliens? But let's meet the man behind the...
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Episode List
  • Ep. 176: Mysteries of the Milky Way, Part 1
  • Ep. 175: Mysteries of the Solar System, Part 2
  • Ep. 174: Mysteries of the Solar System, Part 1
  • Ep. 173: Herschel Space Observatory
  • Ep. 172: William Herschel
  • Ep. 171: Solar System Movements and Positions
  • Ep. 170: Coordinate Systems
  • Ep. 169: The Fermi Mission
  • Ep. 168: Enrico Fermi
  • Ep. 167: Future Civilizations
  • Ep. 166: Multiverses
  • Ep. 165: Doppler Effect
  • Ep. 164: Inside the Atom
  • Ep. 163: Auroras
  • Ep. 162: Edwin Hubble
  • Ep. 161: Launch Facilities
  • Ep. 160: Eclipses
  • Ep. 159: Planet X
  • Ep. 158: Pulsars
  • Ep. 157: Constellations
  • Ep. 156: Famous Stars
  • Ep. 155: Dwarf Stars
  • Ep. 154: Dragon*Con Live with Seth Shostak
  • Ep. 153: Dark Skies
  • Ep. 152: Binary Stars
  • Ep. 151: Atmospheres
  • Ep. 150: Telescopes, the Next Level
  • Ep. 149: Constellation Program
  • Ep. 148: Astronomy and New Media
  • Ep. 147: How to Be Taken Seriously By Scientists
  • Ep. 146: Astronomy Research from Idea to Publication
  • Ep. 145: Interstellar Travel
  • Questions Show: Imaging Extrasolar Planets, Infinite Universe, Inside a Black Hole
  • Ep. 144: Space Elevators
  • Questions Show: Matter Balance, Jumping Light Speed and Black Hole Star Formation
  • Ep. 143: Astrobiology
  • Questions Show: Black black holes, Unbalancing the Earth, and Space Pollution
  • Ep. 142: Plate Tectonics
  • Questions Show: Avoiding the Heat Death, Orbiting Galaxies, and the Dangers of Space Radiation
  • Ep. 141: Volcanoes, Hot and Cold
  • Ep. 140: Entanglement
  • Questions Show: Galileoscope, Black Hole Time, and What Exactly is Energy?
  • Questions Show: Telescope Suggestions, Black Hole Energy, and Universal Time
  • Ep. 139: Energy Levels and Spectra
  • Questions: An Unlocked Moon, Energy Into Black Holes, and the Space Station's Orbit
  • Ep. 138: Quantum Mechanics
  • Questions Show: Hidden Fusion, the Speed of Neutrinos, and Hawking Radiation
  • Ep. 137: Large Scale Structure of the Universe
  • Questions Show: The Source of Atmospheres, the Vanishing Moon, and a Glow After Sunset
  • Ep. 136: Gamma Ray Astronomy
  • more ...