Margaret Geller is best known for her work on the large scale structure of the Universe, helping us understand the large clusters, super clusters and cosmic filaments that matter clumps into.
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- Amateur Astronomy (40)
- Observing (35)
- Astronomy (463)
- Interplanetary Bodies (5)
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- Observing (64)
- Planets (180)
- Extrasolar Planets (30)
- Our Solar System (131)
- Sky Phenomena (13)
- Chemistry (17)
- Cosmology (57)
- Exoplanets (24)
- Galaxies (28)
- High Energy Physics (13)
- History (53)
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Recent Episodes
- Ep. 715: Total Eclipse of the Science: Experiments During the Eclipse
- Ep. 714: Orbital Resonances
- Ep. 713: Solar System Volcanoes – An Update from LPSC 2024
- 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 and Comets?
- Ep. 707: What Goes Into Sample Return Missions for the Moon and 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: Things We Got Wrong
- Ep. 699: Holiday Gift Giving Ideas for Astronomy and Space Fans
- Ep. 698: Insights into the Universe, featuring JWST Results
- Ep. 697 – Mission Roll Call Part 6: Outer Solar System
- Ep. 696 – Mission Roll Call Part 5: Science at Mars
- Ep. 695 – Mission Roll Call Part 4: Lunar Exploration
- Ep. 694 – Mission Roll Call Part 3: Sun, Mercury, and Venus
- Ep. 693 – Mission Roll Call Part 2: Looking Outward from Earth
- Ep. 692 – Mission Roll Call Part 1: Orbiting Earth
- 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
- 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 and 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 Outer Space Treaty of 1967
- Ep. 669: Challenges to Dark Energy
- Ep. 668: The Crisis in Cosmology
- Ep. 667: JWST First Science Results
- 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
- 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: Side Effects of Clean Energy
- Ep. 653: Climate Change: Looking at the Variables
- Ep. 652: The Rocket Race Toward Reusability
- Ep. 651: Artemis and the Decline of Single Use Rockets
- Ep. 650: First Light for JWST
- Ep. 649: Why Does Everything Happen on Holidays?
- Ep. 648: Summer Observing
- Ep. 647: Best Sci-Fi Beach Reading
- Ep. 646: 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: Are Planets Alive?
- Ep. 640: Survey Science: Newest Projects and Results
- Ep. 639: Big Questions Update: Dark Matter, Dark Energy, Hubble Constant
- 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, and Mars
- Ep. 625: End of the Year Review
- Ep. 624: Small Rocky Bodies (Including Phobos and Deimos)
- Ep. 623: NEOS: Concern or Nah?
- Ep. 622: Rocky Moons and Giant Asteroids
- Ep. 621: Gas Giants
- Ep. 620: Why Getting to the Outer Worlds is So Difficult
- Ep. 619: Icy Moons and 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