Ask a Spaceman is a podcast series downloaded over 7 million times and counting! You've got questions and astrophysicist Paul M. Sutter has answers - every episode you will come closer to complete knowledge of time and space!

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Apr 16, 2024

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AaS! 222: What is the Most Distant Thing We Can See?

Apr 16, 2024

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What’s the most distant thing we can see with the naked eye? What about with a telescope? What about at other wavelengths? Is there anything more to see?

Apr 16, 2024

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Apr 2, 2024

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AaS! 221: Will Emergent Gravity Rewrite Physics?

Apr 2, 2024

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What is “emergence” in physics and why is it a big deal? What would it mean for gravity to be emergent? How would we have to rewrite the laws of physics?

Apr 2, 2024

3 Comments

Mar 19, 2024

1 Comment

AaS! 220: Will Our Universe End in a Big Rip?

Mar 19, 2024

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How can a “big rip” tear the universe apart? What does that mean for existence itself? Is it going to happen, and what are we doing to find out?

Mar 19, 2024

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Mar 5, 2024

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AaS! 219: What's the Best Way to Defend Our Planet?

Mar 5, 2024

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How do we track dangerous asteroids? What can impacts do to us? What do we plan to do if The Big One is headed for us? Is Armageddon a documentary?

Mar 5, 2024

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Episode Archive

2024
- Apr 16, 2024 AaS! 222: What is the Most Distant Thing We Can See? Apr 16, 2024
- Apr 2, 2024 AaS! 221: Will Emergent Gravity Rewrite Physics? Apr 2, 2024
- Mar 19, 2024 AaS! 220: Will Our Universe End in a Big Rip? Mar 19, 2024
- Mar 5, 2024 AaS! 219: What's the Best Way to Defend Our Planet? Mar 5, 2024
- Feb 20, 2024 AaS! 218: How Do We Know What the Milky Way Looks Like? Feb 20, 2024
- Feb 6, 2024 AaS! 217: Will We Achieve Fusion Power Soon? Feb 6, 2024
- Jan 16, 2024 AaS! 216: Do Aliens Look Like Us? Jan 16, 2024
- Jan 2, 2024 AaS! 215: How Does Science Regain Trust? Jan 2, 2024
2023
- Dec 19, 2023 AaS! 214: Is Empty Space Really...Empty? Dec 19, 2023
- Dec 5, 2023 AaS! 213: How Were Ancient Astronomers So Good? Dec 5, 2023
- Nov 21, 2023 AaS! 212: Where Do All the Elements Come From? Nov 21, 2023
- Nov 7, 2023 AaS! 211: Will AI Take Over Astronomy? Nov 7, 2023
- Oct 17, 2023 AaS! 210: How Does Space Affect the Climate? Oct 17, 2023
- Oct 3, 2023 AaS! 209: What Secrets Are Hiding in Triton? Oct 3, 2023
- Sep 19, 2023 AaS! 208: Where Are All the White Holes? Sep 19, 2023
- Sep 5, 2023 AaS! 207: How Far Do We Travel in Our Lives? Sep 5, 2023
- Aug 15, 2023 AaS! 206: What are the Weirdest Names in Astronomy? Aug 15, 2023
- Aug 1, 2023 AaS! 205: What's the Difference Between Science and Pseudoscience? Aug 1, 2023
- Jul 18, 2023 AaS! 204: How did Annie Jump Cannon Bring Order to the Universe? Jul 18, 2023
- Jul 4, 2023 AaS! 203: Is the Universe a Giant Black Hole? Jul 4, 2023
- Jun 20, 2023 AaS! 202: Could the Earth Leave the Solar System? Jun 20, 2023
- Jun 6, 2023 AaS! 201: How Does Light Slow Down? Jun 6, 2023
- May 16, 2023 AaS! 200: What are the Top 5 Mysteries in Astronomy? May 16, 2023
- May 2, 2023 AaS! 199: What are the Top 5 Discoveries of All Time in Astronomy? May 2, 2023
- Apr 18, 2023 AaS! 198: What's So Weird About Black Hole Shadows? Apr 18, 2023
- Apr 4, 2023 AaS! 197: Which is Better, Human or Robotic Exploration? Apr 4, 2023
- Mar 21, 2023 AaS! 196: Could We Ever Build a Dyson Sphere? Mar 21, 2023
- Mar 7, 2023 AaS! 195: How Cold Can Space Get? Mar 7, 2023
- Feb 21, 2023 AaS! 194: Does the Universe Rotate? Feb 21, 2023
- Feb 7, 2023 AaS! 193: What are the Blue Stragglers? Feb 7, 2023
- Jan 17, 2023 AaS! 192: Can Tachyons Exist? Jan 17, 2023
- Jan 3, 2023 AaS! 191: What is the Meaning of Quantum Mechanics? (Part 9: Both/And) Jan 3, 2023
2022
- Dec 20, 2022 AaS! 190: What is the Meaning of Quantum Mechanics? (Part 8: For Nothing is Hidden) Dec 20, 2022
- Dec 6, 2022 AaS! 189: What is the Meaning of Quantum Mechanics? (Part 7: Many Worlds, Infinite Possibilities) Dec 6, 2022
- Nov 15, 2022 AaS! 188: What is the Meaning of Quantum Mechanics? (Part 6: Einstein’s Revenge) Nov 15, 2022
- Nov 1, 2022 AaS! 187: What is the Meaning of Quantum Mechanics? (Part 5: Dreams of Copenhagen) Nov 1, 2022
- Oct 18, 2022 AaS! 186: What is the Meaning of Quantum Mechanics? (Part 4: It’s a Quantum, Quantum, Quantum World) Oct 18, 2022
- Oct 4, 2022 AaS! 185: What is the Meaning of Quantum Mechanics? (Part 3: There and Back Again) Oct 4, 2022
- Sep 20, 2022 AaS! 184: What is the Meaning of Quantum Mechanics? (Part 2: Quantum Mechanics 102) Sep 20, 2022
- Sep 6, 2022 AaS! 183: What is the Meaning of Quantum Mechanics? (Part 1: This Way to the Weird) Sep 6, 2022
- Aug 16, 2022 AaS! 182: Wait, Super-Atoms are a Real Thing? Aug 16, 2022
- Aug 2, 2022 AaS! 181: What is the Principle of Least Action? Aug 2, 2022
- Jul 19, 2022 AaS! 180: How Does Pulsar Timing Work? Jul 19, 2022
- Jul 5, 2022 AaS! 179: What are the Alternatives to Dark Matter? Jul 5, 2022
- Jun 21, 2022 AaS! 178: How Big Can Planets Get? Jun 21, 2022
- Jun 7, 2022 AaS! 177: How Do Black Holes Affect Their Galaxies? Jun 7, 2022
- May 17, 2022 AaS! 176: Why is Gravity So Weak? May 17, 2022
- May 3, 2022 AaS! 175: Should We Be Afraid of the Dipole Repeller? May 3, 2022
- Apr 19, 2022 AaS! 174: What Solves the Twin Paradox? Apr 19, 2022
- Apr 5, 2022 AaS! 173: How Does Radioactive Decay Work? Apr 5, 2022
- Mar 15, 2022 AaS! 172: What Are Some Alternatives to the Big Bang Theory? Mar 15, 2022
- Mar 1, 2022 AaS! 171: What are Lagrange Points? Mar 1, 2022
- Feb 15, 2022 AaS! 170: What’s So Fine About the Fine Structure Constant? Feb 15, 2022
- Feb 1, 2022 AaS! 169: What Is Loop Quantum Gravity? Feb 1, 2022
- Jan 18, 2022 AaS! 168: Can We Get Some Love for Globular Clusters? Jan 18, 2022
- Jan 4, 2022 AaS! 167: Do We Live In a Giant Simulation? Jan 4, 2022
2021
- Dec 21, 2021 AaS! 166: What’s the Truth Behind ‘Oumuamua? Dec 21, 2021
- Dec 7, 2021 AaS! 165: What Comes After the James Webb Space Telescope? Dec 7, 2021
- Nov 16, 2021 AaS! 164: Where Can We Find Diamond Rain? Nov 16, 2021
- Nov 2, 2021 AaS! 163: Will Our Universe End in a False Vacuum Decay? Nov 2, 2021
- Oct 19, 2021 AaS! 162: Death Rays from Spaaaaace! Oct 19, 2021
- Oct 5, 2021 AaS! 161: Is There a Crisis in Cosmology? RELOADED Oct 5, 2021
- Sep 21, 2021 AaS! 160: What’s the Best Way to Search for Life? Sep 21, 2021
- Sep 7, 2021 AaS! 159: Why Should We Geek Out Over Maxwell? Sep 7, 2021
- Aug 17, 2021 AaS! 158: What’s So Groovy About Gravitational Waves? (Part 2) Aug 17, 2021
- Aug 3, 2021 AaS! 157: What’s So Groovy About Gravitational Waves? (Part 1) Aug 3, 2021
- Jul 20, 2021 AaS! 156: What are Asteroids Good For? Jul 20, 2021
- Jul 6, 2021 AaS! 155: Who’s Going to Clean Up All That Space Junk? Jul 6, 2021
- Jun 15, 2021 AaS! 154: Is There REALLY a Crisis in Cosmology? Jun 15, 2021
- Jun 1, 2021 AaS! 153: What is a Black Hole Firewall? Jun 1, 2021
- May 18, 2021 AaS! 152: Could We Really Terraform Mars? May 18, 2021
- May 4, 2021 AaS! 151: How Do Quantum Computers Work? May 4, 2021
- Apr 20, 2021 AaS! 150: Why Don’t Neutrinos Make Any Sense? Apr 20, 2021
- Apr 6, 2021 AaS! 149: Is the Universe a Fractal? Apr 6, 2021
- Mar 16, 2021 AaS! 148: What’s Outside the Universe? Mar 16, 2021
- Mar 2, 2021 AaS! 147: What’s the Deal with the Uncertainty Principle? Mar 2, 2021
- Feb 16, 2021 AaS! 146: Astro101 Part 8 - What is the Future of Astronomy? Feb 16, 2021
- Feb 2, 2021 AaS! 145: Astro101 Part 7 - What is the Universe? Feb 2, 2021
- Jan 19, 2021 AaS! 144: Astro101 Part 6 - What are Galaxies? Jan 19, 2021
- Jan 5, 2021 AaS! 143: Astro101 Part 5 - What are Neutron Stars, White Dwarfs, and Black Holes? Jan 5, 2021
2020
- Dec 15, 2020 AaS! 142: Astro101 Part 4 - What Happens When Stars Die? Dec 15, 2020
- Dec 1, 2020 AaS! 141: Astro101 Part 3 - What is a Star? Dec 1, 2020
- Nov 17, 2020 AaS! 140: Astro101 Part 2 - Who lives in the solar system? Nov 17, 2020
- Nov 3, 2020 AaS! 139: Astro101 Part 1 - Why bother with astronomy? Nov 3, 2020
- Oct 20, 2020 AaS! 138: Could the "emdrive" really work? Oct 20, 2020
- Oct 6, 2020 AaS! 137: What's really at the center of a black hole? Oct 6, 2020
- Sep 15, 2020 AaS! 136: Can planets survive the death of their star? Sep 15, 2020
- Sep 1, 2020 AaS! 135: Why aren't there more black physicists? Sep 1, 2020
- Aug 18, 2020 AaS! 134: Is there a fifth force of nature? Aug 18, 2020
- Aug 4, 2020 AaS! 133: How do we know the Earth is curved? Aug 4, 2020
- Jul 21, 2020 AaS! 132: What did Einstein get wrong? Jul 21, 2020
- Jul 7, 2020 AaS! 131: What's so cool about the TRAPPIST-1 system? Jul 7, 2020
- Jun 16, 2020 AaS! 130: What's the most amazing thing about the universe? Jun 16, 2020
- Jun 2, 2020 AaS! 129: Did the big bang make black holes? Jun 2, 2020
- May 19, 2020 AaS! 128: Why are we missing all the baryons? May 19, 2020
- May 5, 2020 AaS! 127: What was Newton's big deal? May 5, 2020
- Apr 21, 2020 AaS! 126: What's the wildest weather in the solar system? Apr 21, 2020
- Apr 7, 2020 AaS! 125: Does Planet Nine exist? Apr 7, 2020
- Mar 17, 2020 AaS! 124: Why is the speed of light the way it is? Mar 17, 2020
- Mar 3, 2020 AaS! 123: What powers a hypernova? Mar 3, 2020
- Feb 18, 2020 AaS! 122: Is String Theory Worth It? (Part 8: An Armageddon of Strings) Feb 18, 2020
- Feb 4, 2020 AaS! 121: Is String Theory Worth It? (Part 7: A Correspondence from a Dear Friend) Feb 4, 2020
- Jan 21, 2020 AaS! 120: Is String Theory Worth It? (Part 6: We Should Probably Test This) Jan 21, 2020
- Jan 7, 2020 AaS! 119: Is String Theory Worth It? (Part 5: Duality of the Fates) Jan 7, 2020
2019
- Dec 17, 2019 AaS! 118: Is String Theory Worth It? (Part 4: What We Need is a Superhero) Dec 17, 2019
- Dec 3, 2019 AaS! 117: Is String Theory Worth It? (Part 3: Dimension is Destiny) Dec 3, 2019
- Nov 19, 2019 AaS! 116: Is String Theory Worth It? (Part 2: Tuning the Strings) Nov 19, 2019
- Nov 5, 2019 AaS! 115: Is String Theory Worth It? (Part 1: Unify This!) Nov 5, 2019
- Oct 15, 2019 AaS! 114: How did spectroscopy revolutionize astronomy? Oct 15, 2019
- Oct 1, 2019 AaS! 113: Is the James Webb Space Telescope worth the wait? Oct 1, 2019
- Sep 17, 2019 AaS! 112: Why can't I quantum tunnel myself? Sep 17, 2019
- Sep 3, 2019 AaS! 111: What happens when you fall into a black hole? (redux) Sep 3, 2019
- Aug 20, 2019 AaS! 110: Is the universe really predictable? Aug 20, 2019
- Aug 6, 2019 AaS! 109: What are the mysterious cosmic strings? Aug 6, 2019
- Jul 16, 2019 AaS! 108: What do we learn from solar eclipses? Jul 16, 2019
- Jul 2, 2019 AaS! 107: Is interstellar travel possible? Jul 2, 2019
- Jun 18, 2019 AaS! 106: How do we measure the expansion of the universe? Jun 18, 2019
- Jun 4, 2019 AaS! 105: Is everything a wave or a particle, and why does my head hurt? Jun 4, 2019
- May 21, 2019 AaS! 104: What turned Venus into hell? May 21, 2019
- May 7, 2019 AaS! 103: What's wrong with the cosmic calendar? May 7, 2019
- Apr 16, 2019 AaS! 102: What are the mighty clusters of galaxies? Apr 16, 2019
- Apr 2, 2019 AaS! 101: What is the black hole information paradox? Apr 2, 2019
- Mar 19, 2019 AaS! 100: Why avoid the cosmic voids? Mar 19, 2019
- Mar 5, 2019 AaS! 99: Do we live in the multiverse? Mar 5, 2019
- Feb 19, 2019 AaS! 98: Who's in charge of the quantum world? Feb 19, 2019
- Feb 5, 2019 AaS! 97: What makes the strong force so strong? Feb 5, 2019
- Jan 15, 2019 AaS! 96: Hey, who took all the antimatter? Jan 15, 2019
- Jan 1, 2019 AaS! 95: Does light experience time? (and other mysteries) Jan 1, 2019
2018
- Dec 18, 2018 AaS! 94: How did we figure out that stuff is made of atoms? Dec 18, 2018
- Dec 4, 2018 AaS! 93: Does the Oort Cloud exist? Dec 4, 2018
- Nov 20, 2018 AaS! 92: I give up, what is time? Nov 20, 2018
- Nov 6, 2018 AaS! 91: Could we blow up a star? Nov 6, 2018
- Oct 16, 2018 AaS! 90: Why are brown dwarf stars so weird? Oct 16, 2018
- Oct 2, 2018 AaS! 89: What makes all the light? Oct 2, 2018
- Sep 18, 2018 AaS! 88: Is the Drake Equation useful? Sep 18, 2018
- Sep 4, 2018 AaS! 87: How do magnets work? Sep 4, 2018
- Aug 21, 2018 AaS! 86: Why do we need cosmic inflation? (Part 2) Aug 21, 2018
- Aug 7, 2018 AaS! 85: Why do we need cosmic inflation? (Part 1) Aug 7, 2018
- Jul 17, 2018 AaS! 84: How does dark energy accelerate the universe? Jul 17, 2018
- Jul 3, 2018 AaS! 83: Can entangled particles communicate faster than light? Jul 3, 2018
- Jun 19, 2018 AaS! 82: What awoke the cosmic dawn? Jun 19, 2018
- Jun 5, 2018 AaS! 81: How do you build a rocket-ship? Jun 5, 2018
- May 15, 2018 AaS! 80: What made the "OMG Particle" so special? May 15, 2018
- May 1, 2018 AaS! 79: Seriously, what is gravity? (Part 3) May 1, 2018
- Apr 17, 2018 AaS! 78: Seriously, what is gravity? (Part 2) Apr 17, 2018
- Apr 3, 2018 AaS! 77: Seriously, what is gravity? (Part 1) Apr 3, 2018
- Mar 20, 2018 AaS! 76: Iceland Question Bonanza! Mar 20, 2018
- Mar 6, 2018 AaS! 75: Why is Iceland so warm? Mar 6, 2018
- Feb 20, 2018 AaS! 74: Why are small stars such a big deal? Feb 20, 2018
- Feb 6, 2018 AaS! 73: Why should we believe the Big Bang? Feb 6, 2018
- Jan 16, 2018 AaS! 72: How does gravity make a lens? Jan 16, 2018
- Jan 2, 2018 AaS! 71: Who lives in the particle zoo? Jan 2, 2018
2017
- Dec 19, 2017 AaS! 70: Can we have some quark stars, please? Dec 19, 2017
- Dec 5, 2017 AaS! 69: What makes a blazar blaze so brightly? Dec 5, 2017
- Nov 21, 2017 AaS! 68: Do we live in a hologram? Nov 21, 2017
- Nov 7, 2017 AaS! 67: Why can't I be an astrophysicist? Nov 7, 2017
- Oct 17, 2017 AaS! 66: What in the world is metallic hydrogen? Oct 17, 2017
- Oct 3, 2017 AaS! 65: How does one become an astrophysicist? Oct 3, 2017
- Sep 19, 2017 AaS! 64: What fate awaits the Voyagers? Sep 19, 2017
- Sep 5, 2017 AaS! 63: How are we to understand quantum spin? Sep 5, 2017
- Aug 15, 2017 AaS! 62: Why do some stars blow up? Aug 15, 2017
- Aug 1, 2017 AaS! 61: Where do giant magnetic fields come from? Aug 1, 2017
- Jul 18, 2017 AaS! 60: What's the deal with time crystals? Jul 18, 2017
- Jul 4, 2017 AaS! 59: Do black holes exist? Jul 4, 2017
- Jun 20, 2017 AaS! 58: Is Time Travel Possible? Jun 20, 2017
- Jun 6, 2017 AaS! 57: What's the matter with dark matter? Jun 6, 2017
- May 16, 2017 AaS 56: What is the Axis of Evil? May 16, 2017
- May 2, 2017 AaS! 55: Does dark energy exist? May 2, 2017
- Apr 18, 2017 AaS! 54: What happens when galaxies collide? Apr 18, 2017
- Apr 4, 2017 AaS! 53: Why is the Higgs boson important? (Part 2) Apr 4, 2017
- Mar 21, 2017 AaS! 52: Why is the Higgs Boson important? (Part 1) Mar 21, 2017
- Mar 7, 2017 AaS! 51: What has New Horizons learned about Pluto? Mar 7, 2017
- Feb 21, 2017 AaS! 50: What's up with Saturn's rings? Feb 21, 2017
- Feb 7, 2017 AaS! 49: What were the most clever experiments of all time? Feb 7, 2017
- Jan 17, 2017 AaS! 48: Why are Kepler's Laws important? Jan 17, 2017
- Jan 3, 2017 AaS! 47: What's the universe made of? Jan 3, 2017
2016
- Dec 20, 2016 AaS! 46: How to describe astronomy to the blind? Dec 20, 2016
- Dec 6, 2016 AaS! 45: Wormholes - deal or no deal? Dec 6, 2016
- Nov 15, 2016 AaS! 44: How does the sun get spots? Nov 15, 2016
- Nov 1, 2016 AaS! 43: What's the shape of the universe? Nov 1, 2016
- Oct 18, 2016 AaS! 42: Where do "weird" radio signals come from? Oct 18, 2016
- Oct 4, 2016 AaS! 41: How do (regular) novas work? Oct 4, 2016
- Sep 20, 2016 AaS! 40: Do black holes die? Sep 20, 2016
- Sep 6, 2016 AaS! 39: Is there life on Europa? Sep 6, 2016
- Aug 16, 2016 AaS! 38: How do we see beyond the visible? Aug 16, 2016
- Aug 2, 2016 AaS! 37: What is the cosmic microwave background? (Part 2) Aug 2, 2016
- Jul 19, 2016 AaS! 36: What is the cosmic microwave background? (Part 1) Jul 19, 2016
- Jul 5, 2016 AaS! 35: What are "virtual particles"? Jul 5, 2016
- Jun 21, 2016 AaS! 34: What is the Great Attractor? Jun 21, 2016
- Jun 7, 2016 AaS! 33: What if the moon disappeared? Jun 7, 2016
- May 17, 2016 AaS! 32: Where do nebulae come from? May 17, 2016
- May 3, 2016 AaS! 31: How can the universe expand faster than light? May 3, 2016
- Apr 19, 2016 AaS! 30: Second-Grade Question BONANZA! Apr 19, 2016
- Apr 5, 2016 AaS! 29: Why does E=mc^2? Apr 5, 2016
- Mar 15, 2016 AaS! 28: What's the point in talking about #science? Mar 15, 2016
- Mar 1, 2016 AaS! 27: How does gravity make waves? Mar 1, 2016
- Feb 16, 2016 AaS! 26: Wolf-Rayet Stars: Sci-Fi or What!? Feb 16, 2016
- Feb 2, 2016 AaS! 25: How do we know how far away stuff is...far away? Feb 2, 2016
- Jan 19, 2016 AaS! 24: What's the beef with quantum gravity? Jan 19, 2016
- Jan 5, 2016 Aas! 23: What's up with exoplanets? Jan 5, 2016
2015
- Dec 22, 2015 AaS! Transient Special: What was the Christmas star? Dec 22, 2015
- Dec 15, 2015 AaS! 22: Question Bonanza! Dec 15, 2015
- Dec 1, 2015 AaS! 21: Are we really made of stars? Dec 1, 2015
- Nov 17, 2015 AaS! 20: How much light is in the universe? Nov 17, 2015
- Nov 12, 2015 AaS! Special: What did you think of The Martian? Nov 12, 2015
- Nov 3, 2015 AaS! 19: How do planets get magnetic fields? Nov 3, 2015
- Oct 20, 2015 AaS! 18: Is the universe dying? Oct 20, 2015
- Oct 6, 2015 AaS! 17: What banged the Big Bang? Oct 6, 2015
- Sep 15, 2015 AaS! 16: How do spiral galaxies form? Sep 15, 2015
- Sep 1, 2015 AaS! 15: Will we colonize Mars? Sep 1, 2015
- Aug 18, 2015 AaS! 14: What is spacetime? (Part 2) Aug 18, 2015
- Aug 11, 2015 AaS! Transient Special: What's on the surface of a black hole? Aug 11, 2015
- Aug 4, 2015 AaS! 14: What is spacetime? (Part 1) Aug 4, 2015
- Jul 21, 2015 AaS! 13: What the heck is a magnetar? Jul 21, 2015
- Jul 14, 2015 AaS! Transient Special: How long could you survive in space without a suit? Jul 14, 2015
- Jul 7, 2015 AaS! 12: Is life possible around binary stars? Jul 7, 2015
- Jun 16, 2015 AaS! 011: What do we do in space? Jun 16, 2015
- Jun 2, 2015 AaS! 010: How do black holes form? Jun 2, 2015
- May 19, 2015 AaS! 009: How big is the universe? May 19, 2015
- May 5, 2015 AaS! 008: Will a comet kill us all? May 5, 2015
- Apr 21, 2015 AaS! 007: How do we know that dark matter exists? Apr 21, 2015
- Apr 7, 2015 AaS! 006: When did the first stars appear? Apr 7, 2015
- Mar 27, 2015 AaS! Transient Special: When is the next eclipse? Mar 27, 2015
- Mar 20, 2015 AaS! 005: Where did the oceans come from? Mar 20, 2015
- Mar 6, 2015 AaS! Bonanza 001: CalPoly Astr102 Class Mar 6, 2015
- Feb 20, 2015 AaS! 004: Are there aliens...out there? Feb 20, 2015
- Feb 6, 2015 AaS! 003: How will the sun die? Feb 6, 2015
- Jan 15, 2015 AaS! 002: What's it like to fall into a black hole? Jan 15, 2015
- Jan 15, 2015 AaS! 001: Is Pluto a planet? Jan 15, 2015

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