All Episodes
Astronomy Minute — 183 episodes
What is an Astronomical Observatory?
What is Occam's Razor?
Why is the Webb Telescope Optimized to Observe Infrared Light?
What are the Main Science Goals of the Webb Telescope?
What is the James Webb Space Telescope?
What is the Hubble Space Telescope?
Why Do We Put Telescopes in Space?
What is Meant by Spiral Nebula?
What is the Big Crunch?
What are the Basic Properties of Astronomical Objects?
What is the Local Group of Galaxies?
What Does it Mean to “Know” Something in Science?
How Can Atoms and Thus Matter be Mostly Empty Space?
What are Interacting Galaxies?
How do the Sun and Other Stars Shine?
What are Giant Molecular Clouds?
How do We Know that the Milky Way Galaxy is Spiral in Shape?
What is Meant by the 21 Centimeter Radiation of Hydrogen?
How are Neutron Stars and Pulsars Related?
What is a Neutron Star?
What is a White Dwarf Star?
How do We Know the Ages of Stars?
What is Seeing and the Resolving Power of a Telescope?
Are Black Holes Cosmic Vacuum Cleaners?
What Was Here Before the Big Bang?
Are UFOs Aliens From Outer Space?
What is the Milky Way Galaxy?
What is the Hubble Law?
What are Starburst Galaxies?
Is Science Absolute?
What is Meant by Dimensional Analysis?
What are Sunspots and the Sunspot Cycle?
What is Meant by Einstein’s Theory of Relativity?
A Description of the Mathematical Basis of Cause-and-Effect
How do Lunar and Solar Eclipses Happen?
What do I Need to Know About Planet Earth?
So You Want to be a Professional Astronomer?
How do Atoms Absorb and Emit Light?
What are Some Well-Known Deep Sky Objects?
What is Meant by the Retrograde Motion of the Planets?
What Professional Organizations Support the Work of Astronomers?
How do Astronomers Obtain Their Observations of the Sky?
How do Astronomers Disseminate Their Scientific Research Results?
What is Meant by Metal Abundance or Metallicity?
What is Meant by Light Pollution?
Is Science the Only Path to the Truth?
Which Notable Objects are in the Constellation of Virgo?
Which Notable Objects are in the Constellation of Ursa Major?
Which Notable Objects are in the Constellation of Tucana?
Which Notable Objects are in the Constellation of Triangulum?
Which Notable Objects are in the Constellation of Scorpius?
Which Notable Objects are in the Constellation of Ophiuchus?
Which Notable Objects are in the Constellation of Monoceros?
Which Notable Objects are in the Constellation of Leo?
The Many Facets of Astronomy and the Lure of the Night Sky
What is the Relation Between Local Sidereal Time and Local Time?
What is the Equation of Time?
What is Meant by Local Apparent Time?
Which Notable Objects are in the Constellation of Dorado?
What is Meant by Local Sidereal Time?
What is Meant by Galactic Coordinate System?
What is Meant by Altazimuth Coordinate System?
What is Meant by Altitude and Azimuth?
What is Meant by Equatorial Coordinate System?
What is Meant by Quantum Mechanics?
How do We Know the Age of the Universe?
Which Notable Objects are in the Constellation of Crux?
Which Notable Objects are in the Constellation of Coma Berenices?
Which Notable Objects are in the Constellation of Cetus?
Which Notable Objects are in the Constellation of Cassiopeia?
Which Notable Objects are in the Constellation of Canis Major?
Which Notable Objects are in the Constellation of Cancer?
Which Notable Objects are in the Constellation of Canes Venatici?
Which Notable Objects are in the Constellation of Centaurus?
Which Notable Objects are in the Constellation of Taurus?
Which Notable Objects are in the Constellation of Sagittarius?
Which Notable Objects are in the Constellation of Orion?
Which Notable Objects are in the Constellation of Lyra?
Which Notable Objects are in the Constellation of Hercules?
Which Notable Objects are in the Constellation of Cygnus?
Which Notable Objects are in the Constellation of Andromeda?
What is Meant by a Deep Sky Object?
What is an Asterism?
Why do We Study Astronomy?
The Universe as a Time Machine
How Old is the Universe, the Sun, and the Earth?
What is a Light Year?
What is Electromagnetic Radiation?
What is Meant by the Hubble Flow?
What is a Blackbody Curve or Planck Curve?
What is Precession of the Equinoxes?
What is Meant by the Signs of the Zodiac?
Is There Life Elsewhere in the Universe?
How Old is the Solar System?
How Did Our Galaxy Form?
Is There Such a Thing as THE Dark Side of the Moon?
What is Meant by Taxonomy in Science?
What are the Magellanic Clouds?
What do I Need to Know About Isaac Newton?
What do I Need to Know About Galileo?
The Clockwork of the Universe
What do I Need to Know About Johannes Kepler?
What do I Need to Know About Tycho Brahe?
What do I Need to Know About Nicolaus Copernicus?
How do We Know There are Planets Around Other Stars?
What is Meant by a Bell Curve?
What are Right Ascension and Declination?
What Causes the Phases of the Moon?
What Causes the Seasons on the Earth?
What is the Difference Between Precision and Accuracy?
What is Meant by an Order of Magnitude and a Logarithmic Scale?
Where are the Sun's Siblings?
What is the Difference Between Random Errors and Systematic Errors?
What is Meant by the Magnitude System?
What is the Kelvin Temperature Scale?
What are Comets and Meteor Showers?
What is the Cosmic Microwave Background?
How Do We Classify Stars?
What is Meant by Hierarchical Clustering in Astronomy?
What is the Interstellar Medium?
What is Meant by Tidal Forces?
What is Newton's Law of Universal Gravitation?
What is the Copernican Principle?
What is Dark Energy?
What is Gravitational Lensing?
How Do We Classify Galaxies?
What do I Need to Know About the Planet Neptune?
What do I Need to Know About the Planet Uranus?
What do I Need to Know About the Planet Saturn?
What do I Need to Know About the Planet Jupiter?
What do I Need to Know About the Planet Mars?
What do I Need to Know About the Planet Venus?
What do I Need to Know About the Planet Mercury?
What are the Different Types of Telescopes?
Why is the Sky Blue?
What are Interstellar Reddening and Extinction?
How Did the Earth's Moon Form?
What do we Know About the Sun?
What is Conservation of Angular Momentum?
What is the HR Diagram and the Main Sequence?
What is the Doppler Effect and Redshift?
What is the Inverse Square Law of Light?
What are Newton's Laws of Motion?
Can the Millennium Falcon Really do the Kessel run in 12 parsecs?
Does Science Prove Things?
How do we know there is a black hole at the center of our galaxy?
What are Kepler's Laws?
What are Active Galaxies?
How Did the Solar System Form?
Why Did I Create These Podcasts?
Will Polaris Always be the North Star?
What Happened to Pluto Formerly Known as a Planet?
How Do We Name Stars?
What is a Constellation?
What are Variable Stars?
What is Helioseismology?
What do Astronomers do?
What is the Difference Between Astronomy and Astrophysics?
How do we use Light to Study the Universe?
What is the Solar System?
What is Cosmology?
What is Light?
What is the Big Bang?
What is Dark Matter?
What are M-numbers and NGC-numbers?
What is a Galaxy?
What is a Nebula?
What is a Star Cluster?
How do Stars Form?
Where do the Chemical Elements Come From?
What is a Brown Dwarf?
What is Science?
How do we measure distances in Astronomy?
What is a Quasar?
Astronomy is a Science of Extremes
What is the Celestial Sphere?
What is a Black Hole?
What is a Pulsar?
How do Stars Die?
How do Stars Evolve?
What is a Supernova?
What is a Nova?
What is Astronomical Vocabulary?