All Episodes
365 Days of Astronomy - Weekly Edition — 367 episodes
Ep. 798: Our Summer Media List
Ep. 797: Summer in Space
Ep. 796: Oceans & Organics on Mars
Ep. 795: Expanse Science
Ep. 794: Stargate Science
Ep. 793: Star Trek Science
Ep. 792: Star Wars Science
Ep. 791: Chang'e Sample Return
Ep. 790: Meteorites From Other Worlds
Ep. 789: What Happens When a Planet's Star Dies
Ep. 788: Life's Molecules Form in Space
Ep. 787: Evolved Stars (They're not dead yet!)
Ep. 786: Wolf-Rayet Stars
Ep. 785: Magnetars
Ep. 784: Pulsar-Powered Science
Ep. 783: Cataclysmic Variable Stars
Ep. 782: Luminous Fast Blue Optical Transients
Ep. 781: Awakening Black Holes
Ep. 780: When Asteroids & Comets Attack!
Ep. 779: Milankovitch Cycles
Ep. 778: Dyson Swarms
Ep. 777: The Eddington Limit
Ep. 776: The Matter - Antimatter Dichotomy
Ep. 775: The Hydrogen 21-cm Line
Ep. 774: How Does Bad Science Happen?
Ep. 773: What Would You Do With $1 Billion For Astronomy?
Ep. 772: 2025 Gift Guide
Ep. 771: Comet Tails
Ep. 770: The Ethics of Mars Exploration
Ep. 769: Little Red Dots
Ep. 768: Comets' Unpredictability
Ep. 767: Black Holes in Extreme Circumstances
Ep. 766: How Spacecraft End
Ep. 765: Rockets vs The Environment
Ep. 764: Cleared For Launch!
Ep. 763: Interstellar Comets
Ep. 762: Science in Crisis - NASA's New Budget
Ep. 761: It's Here! The Vera Rubin Observatory
Ep. 760: What to Look For This Summer
Ep. 759: The Commercial Space Program
Ep. 758: Non-Roving Rovers
Ep. 757: CubeSats
Ep. 756: SphereX
Ep. 755: Intermediate Mass Black Holes
Ep. 754: K2-18b
Ep. 753: Why is the Moon's South Pole So Interesting?
Ep. 752: Should We Go to the Moon or Mars Next?
Ep. 751: Vacuum Energy
Ep. 750: Supernova Early Warning System
Ep. 749: Dark Energy Changing Over Time
Ep. 748: Fast Radio Bursts
Ep. 747: Rogue Planets
Ep. 746: Dust Storms
Ep. 745: How We Know If Asteroids Will Attack
Ep. 744: Lunar Time
Ep. 743: What Else Can We Learn From Gravitational Waves?
Ep. 742: Atmospheric Gravity Waves
Ep. 741: Technosignatures
Ep. 740: Sneaky Stars!
Ep. 739: Drones!
Ep. 738: Looking Ahead to 2025
Ep. 737: Weird Science Stories From 2024
Ep. 736: Gift Guide 2024
Ep. 735: Albert Einstein
Ep. 734: The Einstein Mission
Ep. 733: Euclid Of Alexandria
Ep. 732: The Euclid Telescope
Ep. 731: Neil Gehrels
Ep. 730: The Neil Gehrels Swift Telescope
Ep. 729: The James Webb Space Telescope
Ep. 728: Solar Scientist Eugene Parker
Ep. 727: Parker Solar Probe
Ep. 726: Looking Back Over The Summer
Ep. 725: Looking Ahead
Ep. 724: Summer (Science & Sci Fi) Reads
Ep. 723: Exoplanets by the Numbers
Ep. 722: Weather on Exoplanets
Ep. 721: Rogue Planets
Ep. 720: Galaxy Series - Elliptical Galaxies
Ep. 719: Galaxy Series - Spiral Galaxies
Ep. 718: Galaxy Series - Dwarf Galaxies
Ep. 717: Understanding the Ages of Distant Cosmic Objects
Ep. 716 - The God**** Particle - Remembering Peter Higgs
Ep. 715: Total Eclipse of the Science: Experiments During the Eclipse
Ep. 714: Orbital Resonances
Ep. 713: Solar System Volcanoes
Ep. 712: How Peer Review Fails
Ep. 711: NASA Innovative Advanced Concepts (NIAC)
Ep. 710: NASA's Commercial Lunar Payload Services (CLPS) Program
Ep. 709: Space Weapons
Ep. 708: What Goes Into Sample Return Missions From Asteroids & Comets?
Ep. 707: What Goes Into A Sample Return Mission? Moon & Mars
Ep. 706: China's Space Program
Ep. 705: Water Worlds - Looking For Life Beyond Earth
Ep. 704: NASA's Juno Releases New Images
Ep. 703: Solar Maximum of Doom? Maybe
Ep. 702: Moonshot 2024 - Go or No Go?
Ep. 701: Space Science We Look Forward to in the Next 700 Episodes
Ep. 700: The Things We Got Wrong
Ep. 699: Holiday Gift Giving Ideas for Astronomy and Space Fans
Ep. 698: Insights Into the Universe
Ep. 697: Mission Roll Call Part 6: The Outer Solar System and Beyond
Ep. 696: Mission Roll Call Part 5: The Science at Mars
Ep. 695: Mission Roll Call Part 4: Lunar Exploration
Ep. 694: Mission Roll Call Part 3: What's Beyond Earth
Episode 693: Mission Roll Call, Part 2: Looking Outward from Earth
Ep. 692: Mission Roll Call Part 1: Earth Orbit
Ep. 691: Jupiter's Changing Red Spot
Ep. 690: Climate on Mars - From Ice Caps to Dust Storms
Ep. 689 - Our Warming World: 20 Years of Climate Science
Hiatus Message
Ep. 688: What's Next? Looking Ahead to Season 17
Ep. 687: Prepping for the Moon
Ep. 686: Ice In The Shadows
Ep. 685: Manufacturing In Space
Ep. 684: Too Big, Too Soon: Massive Early Galaxies Defy Expectations
Ep. 683: Cosmic Dawn
Ep. 682: Ultra-Diffuse Galaxies & Dark Matter
Ep. 681: Kilonovae
Ep. 680: Rogue Black Holes
Ep. 679: High(per) Velocity Stars
Ep. 678: World Building: Planet Formation, Growth & Ejection
Ep. 677: The Answer is Always Dust
Ep. 676: Other Things With Rings
Ep. 675: Exotic Forms of Ice
Ep. 674: Asteroid Early Warning Systems
Ep. 673: How to See Satellites (or Avoid Seeing Them)
Ep. 672: Space Debris Removal
Ep. 671: The Consequences to Breaking Space Laws
Ep. 670 - Governing Space: The 1967 Outer Space Treaty & More!
Ep. 669: Challenges to Dark Energy
Ep. 668: The Crisis In Cosmology
Ep. 667: JWST First Science
Ep. 666: Solar System References to the Underworld
Ep. 665: The Age of Reionization
Ep. 664: The First Stars
Ep. 663: End of Year Observing Events
Ep. 662 - Looking Ahead at New and Recycled Missions
Ep. 661: Looking Back on the Missions That Ended
Astronomy Cast Ep. 660: Runaway! Runaway! Escaping Stars, Planets & Small Bodies
Ep. 659: Clear Skies, Bright Satellites
Ep. 658: Space Exploration Horror Stories
Ep. 657: Astronomical Naming Schemes
Ep. 656: Smashing Asteroids for Science!
Ep. 655: 65 Years of Space: Sputnik 1 Anniversary
Ep. 654: The Side Effects Of Clean Energy
Ep. 653: Climate Change: Looking at the Variables
Ep. 652: The Rocket Race Towards Reusability
Ep. 651: Artemis & The Decline of Single Use Rockets
Ep. 650: Did JWST Work?
Ep. 650: Did JWST Work?
Ep. 649: Highlights From NASA's Holiday Ruining History
Ep. 648: Summer Observing
Ep. 647: Best Sci Fi Beach Reading
Ep. 646: Our Long Term Future in Space
Ep. 645: The Future of the ISS
Ep. 644: Is Earth… Normal?
Ep. 643: Sagittarius A*
Ep. 642: Is the Sun... Normal?
Ep. 641: Can Planets Be Alive?
Ep. 640: Survey Science: Newest Projects & Results
Ep. 639: Big Qs Update: Dark Matter, Dark Energy, Etc.
Ep. 638: Simulating Space Missions
Ep. 637: Machine Learning in Astronomy
Ep. 636: Blowing Bubbles
Ep. 635: Jets: When Magnetic Fields Fling Things
Ep. 634: Milky Way's Mergers & Acquisitions
Ep. 633: Weirdly Habitable Places
Ep. 632: Building Images: Optical vs Radio
Ep. 631: All The Uses Of Pulsars (Including Murder)
Ep. 630: Things We Can Look Forward To
Ep. 629: The Cost of Delays
Ep. 628: The Sun Revisited
Ep. 627: Mercury Revisited
Ep. 626: Terrestrial Planets - Mercury, Venus, Earth & Mars
Ep. 625: End of the Year Review
Ep. 624: Small Rocky Bodies (Including Phobos & Deimos)
Ep. 623: NEOs: Concern or Nah
Ep. 622: Rockier Moons & Giant Asteroids
Ep. 621: Gas Giants
Ep. 620: Why Getting to the Outer Worlds is So Difficult
Ep. 619: Icy Moons & Dwarf Planets
Ep. 618: Ice Giants
Ep. 617: Hangout-A-Thon Episode 2 - Crowdfunding Science
Ep. 616: Hangout-A-Thon Episode 1 - The Great Observatories
Ep. 615: Planet 9
Ep. 614: Centaurs, Comets & Asteroids
Ep. 613: Pluto's Demotion: 15 Years Later
Ep. 612: The SETI Renaissance
Ep. 611: What is Required to Confirm Alien Life: Intelligence Edition
Ep. 610: What is Required to Confirm Alien Life: Non-Sentient Edition
Ep. 609: Volcanos With Benefits: Lava Tubes, Hydro Thermal Vents & More
Ep. 608: NASA Perseverance, The First 100 Days
Ep. 607: InSight and Earthquakes
Ep. 606 - Time Dilation: Skipping Thru Time
Ep. 605: Sounding Rockets
Ep. 604: Balloon Astronomy
Ep. 603: New Colors of the Radio Spectrum
Ep. 602: The New Colors of Gamma Rays - Getting Shorter
Ep. 601: Unexpected Light Pollution
Ep. 600: Looking Ahead
Ep. 599: Zodiacal Light
Ep. 598: How You Could Overturn Cosmology
Ep. 597: The Expansion of the Universe
Ep. 596: The Universe's Background Noise
Ep. 595: Planet Hunting - Revisited
Ep. 594: Juno - Primary Mission Highlights
Ep. 593: Stellar Parasites
Ep. 592: Gamma-Ray Bursts - Updated
Ep. 591: What Are We Gonna Do With All That Space Junk?
Ep. 590: Lunar Hazards: Dust, Radiation and More
Ep. 589 - Lunar Resources: Water (Update) & Other Volatiles
Ep. 588 - Lunar Resources: Lava Tubes
Ep. 587: The Artemis Accords
Ep. 586: Life As We Know It: Habitable Exoplanets & Extremophiles
Ep. 585: Super Earths, Mini-Neptunes & Gas Dwarfs
Ep. 584: Sample Return Missions From Asteroids
Ep. 583: The 2020 Nobel Prize in Physics
Ep. 582: Building Bigger Black Holes
Ep. 581: Other Kinds Of Novae
Ep. 580: Exploding Dwarfs
Ep. 579: White and Black Dwarf Stars
Ep. 578: Venus Updates - or - Life on Venus?!?
Ep. 577: Mars in Opposition
Ep. 576: Summer Stargazing Special
Ep. 575: Observing The Moon
Ep. 574: Trojan Asteroids
Ep. 573: Exoplanet Atmospheres
Ep. 572: Twists in Planet Formation
Ep. 571: Extreme Binaries
Ep. 570: Discovering Comets
Ep. 567: When Satellites Need A House Call
Ep. 566: When Comets Fall Apart
Ep. 565: When Worlds Collide
Ep. 564: Mini Moons
Ep. 563: White Dwarf Mergers
Ep. 562: Dealing with COVID-19 and the Changes it will Bring
Ep. 561: Remembering Katherine Johnson
Ep. 560: Betelgeuse
Ep. 559: The Surface of the Sun
Ep. 558: Supernova SN 2006gy
Ep. 557: Red Dwarfs: Friend or Foe
Ep. 556: Multi Messenger Astronomy
Ep. 555: Satellite Constellations and the Future of Astronomy
Ep. 554: Big Telescope Controversy in Hawai'i
Ep. 553: What To Look Forward To In 2020
Ep. 552: Boyajian's star (and other strange stars)
CosmoQuest Hangoutathon Promo
Ep. 551: Missing Epochs - Observing before the CMBR
Ep. 550: Missing Epochs - Observing the Cosmic Dark Ages
Ep. 549: Stellar nucleosynthesis revisited: In and on and around dead stars
Ep. 548: Stellar nucleosynthesis revisited: In stellar cores & atmospheres
Ep. 547: Why Astronomy Still Needs Humans
Ep. 546: Weird Issues: Planetary Migration
Ep. 545: Weird Issues: Are comets asteroids or are asteroids comets?
Ep. 544: Weird Issues: Biosignatures
Ep. 543: Weird Issues: The Habitable Zone
Ep. 542: Weird Issues: The Age of the Universe
Ep. 541: Weird Issues: Expansion Rate of the Universe
Ep. 540: Weird Issues: How Do (or Don't) Planets Form?
Ep. 539: Weird Issues: Why We Don't Know the Age of Saturn's Rings
Ep. 538: Asteroids: Rubble piles of the Solar System
Ep. 537: Reusable Rocket Revolution
Libsyn Survey Request
Astronomy Cast on Hiatus until Sept 2019
Ep. 536: Everyday Relativity
Ep. 535: Astronomy-Related Things To Do This Summer
Ep. 534: Modern South African Astronomy
Ep. 533: Indigenous South African Astronomy
Ep. 532: Modern Astronomy of Australia
Ep. 531: Australian Indigenous Astronomy
Ep. 530: Astronomy of the Andes - Then and Now Pt. 2
Ep. 529: Astronomy of the Andes - Then and Now Pt. 1
Ep. 528: Modern Astronomy of the American Southwest
Ep. 527: Ancient Astronomy of the American Southwest
Ep. 526: Event Horizon Telescope and the Black Hole at M87
Ep. 525: 100 Years of the International Astronomical Union
Ep. 524: Judging Age & Origins, part 3 - Beyond Our System
Ep. 523: Judging Age & Origins, Pt. 2 Across the Solar System
Ep. 522: Judging Age & Origins, part 1 - Earth Rocks
Bonus Episode: Dust with Dr. Paul Sutter
Ep. 521: The Deep Space Network
Ep. 520: Transients: What They Are and Why They Matter, Part 2
Ep. 519: Transients: What They Are and Why They Matter
Ep. 518: When the Universe tried to Declare War
Ep. 517: Fritz Zwicky and the Zwicky Transient Facility
Ep. 516: Polar Vortices
Ep. 515: Space Radiation
Ep. 514: Planetary Protection Protocols
Ep. 513: Stellar Fusion
Ep. 512: Direct Imaging of Exoplanets
Ep. 511: Predictions for 2019
Ep. 510: 2018 - Year in Review
Ep. 509: Fiction to Fact: 3D Printers
Ep. 508: 2018 Holiday Gift Guide
Ep. 507: From Fiction to Fact : Ion Drive
Ep. 506: It's not Aliens, Unless it's Aliens
Ep. 505: Seismology
Ep. 504: Radar, Lidar, and Sonar
Ep. 503: Gravity Mapping
Ep. 502: No Touching: Determining Composition of Worlds Remotely
Ep. 501: Water Worlds Revisited
Ep. 500: Live Celebration!
Ep. 499: What is the proposed Hubble-Lemaitre Law?
Ep. 498: Dwarf Galaxy Update
Ep. 497: Update on Globular Clusters
Ep. 496: Update on Stellar Populations (I, II, & III)
Ep. 495: Update on Asteroids & Prospects of Asteroid Mining
Ep. 494: Icy Moons Update 2018
Ep. 493: Mars Update 2018
Ep. 492: Comets, Asteroids and KBO's
Ep 491: Exoplanet Update 2018
Ep 490: What's New with Supernovae
Ep 489: Black Hole Update
Ep 488: Dark Energy: 2018 Edition
Ep 487: Dark Matter: 2018 Edition
Ep 486: Particle Physics Update
Ep 485: Docking, Refueling, and Transferring
Ep. 484: Transfer Orbits and Gravitational Assists
Ep 483: Stopping in Space
Ep 482: Alternative Ways to Space
Ep 481: Rockets pt. 3 - Going Faster, Higher, Farther after Fairing Separation
Astronomy Cast Special: Q & A with Dr. Pamela Gay
Ep 480: Rockets pt. 2- Multi-stage Boosters
Ep. 479: Rockets pt. 1- What Does "Single Stage To Orbit" Really Mean?
Ep. 478: Apollo 8 with Paul Hildebrandt
Ep. 477: The State of Exploration: Return to the Moon
Ep. 476: The Overview Effect
Ep. 475: Fast Radio Bursts
Ep. 474: Predictions for 2018
Ep. 473: Remembering the Best Space Science of 2017
Ep. 472: Best Modern Sci Fi for the Science Lover - Part 4: Bioscience
Ep. 471: Best Modern Sci Fi for the Science Lover - Part 3: Human Computer Relations
Ep. 470: Best Modern Sci Fi for the Science Lover – Part 2: 3D Printing
Ep. 469: Best Modern Sci Fi for the Science Lover - Part 1 Space Exploration
Ep. 468: Simulations for Science and Fun
Ep. 467: Resonance
Ep. 466: Origins of Zero (0)
Ep. 465: Exploiting Interfering Light
Ep. 464: Why the Hype over an Exorock?
Ep. 463: Pareidolia and the Moon
Ep. 462: Modeling the Weather
Ep. 461: Measuring the Weather with Satellites
Ep. 460: Earth from Afar: Remote Sensing
Ep. 459: Arecibo Observatory
Ep. 458: The Science of Cassini
Ep. 457: Why Did Cassini Have To Die? In Memoriam
Ep. 456: Pluto Revisited
Ep. 455: Your Practical Guide to Colonizing the Milky Way!
Ep. 454: Things We're Looking Forward To
Ep. 453: Favorite Things We've Done These 10 Years
Ep. 452: Summer Observing Challenges
Ep. 451: When Can I Buy My Ticket To Space?
Astronomy Cast Ep. 450: Inflatable Habitats
Astronomy Cast Ep. 449: Robots in Space!
Astronomy Cast Ep. 448: Prepping for the Eclipse
Ep. 447: Animals in Space Pt. 3: Dogs, Monkeys and More
Ep. 446: Animals in Space Pt. 2: Mice and Other Small Animals
Ep. 445: Animals in Space Pt. 1: Insects and Arachnids
Ep. 444: Fractals
Ep. 441: Destroy and Rebuild, Pt. 5: Continental Drift
Ep. 440: Destroy and Rebuild, Pt. 4: Supervolcanoes!
Ep. 439: Destroy and Rebuild, Pt. 3: How Do We Terraform Earth?
Ep. 438: Destroy and Rebuild, Pt. 2: Geoengineering
Ep. 437: Destroy and Rebuild, Pt. 1: The Torino Scale
Ep. 443: Destroy and Rebuild Pt. 7: Tsunamis
Ep. 442: Destroy and Rebuild Pt. 6: Magnetic Pole Reversal