All Episodes
What The If? — 444 episodes
The MUSES Are Real - with Dr. Moiya McTier!
Moon Babies Meet EARTH!
Microbe Grudge Match!
Space JUNK!
Telepathy!
Reality Is Making Stuff UP!
Ants Adopt A CATERPILLAR!
The Buddy System Run AMOK!
Black Holes
The Day Gravity QUIT!
GROUND HOG Day PHYSICS!
HAGFISH - Champion Of The SLIMER BOWL!
CITIZEN Science -- with Kirby Runyon!
Walking on IO with Robin Andrews! (Encore)
BIOLOGICAL New Year's Resolutions!
Time REVERSAL with Ian Durham!
Santa's MEGA Fauna!
Green SUN Apocalypse!
Dr. Kiki Turns Us Into BIRDS!
Two BABIES, Two SPECIES!
CHINA vs NASA
Mosquitoes Fall for FUNGI!
FRANKENSTEIN
The BURPING Lake!
Animals Train YOU!
AI Viruses
MEMORY Maxed Out - with Nikolay Kukushkin!
Gravity Waves Go WIGGLE
Science ROCKS On MARS!
VITALERIUM with Nicholas Casbarro!
Riding GRAVITY FORCE ONE with KIRBY RUNYON
SLOW Light Speed!
Alien PETS!
Nuclear REACTORS on the Moon!
Don't SWEAT It!
BIG Telescopes!
DNA Goes BOLDLY
The Case Of The MISSING Physics!
TOTAL PERSPECTIVE VORTEX
Silent SUBMARINE Seas!
BEFORE The Big BANG
BADMINTON Bots Go Rogue!
Can You BREATHE Like A WHALE? With Vanessa Pirotta!
DNA EDITING Goes Mainstream!
RESISTANCE Training EXTREME!
Human HATCHING Day!
SPACE Vacation On Earth!
DIRE WOLVES Return!
Humanity On All FOURS!
PHYSICS Changes Its MIND!
Microgravity MOVIE Making!
OLYMPICS Of The Solar System! (Encore)
2025-03-07 A World Without WINGS!
American BRAIN DRAIN: Beyond The IF!
American BRAIN DRAIN
NONSTOP Meteor Madness!
The Great GARBAGE Apocalypse!
Nobody POOPS!
SLOTH Life!
ANTS Fold Your Pants - BONUS - Beyond The IF!
ANTS Fold Your PANTS!
TOXIC Free UTOPIA!
Ultra HEARING For Everyone
OCTOPUS Empire Rising!
LEFTY LIFE Takes Over!
Prediction PERFECTION!
COFFEE Gone WILD!
From WASTE To TASTE - BONUS - Beyond The IF!
From WASTE To TASTE!
NUCLEAR Next Door!
Jellyfish FUSION and You!
White Dwarf SUN!
SOUND WAVES Make Plants RAVE!
FACE Blindness: Beyond The IF!
FACE Blindness with Sharrona Pearl!
EUROPA'S Icy Enigma!
MINI-MOON Madness!
ALCOHOL Clouds Beyond The Stars!
Alien PETS!
Fungus Bots Unite!
GIANT NEMATODES
HYPERVELOCITY Havoc!
GRAVITY Flux!
STRETCHY EARTH!
SHORT MEMORY Mayhem!
OLYMPICS Of The Solar System!
MICROBIAL Architects Of Alien Worlds!
ANCIENT GREEK YouTube STARS!
GLASS Bones & ACID Blood!
Humans SPIRAL into PIZZA Madness!
NITROGEN Doomsday!
Weird Fish Dating!
YOU Are Schrödinger's CAT!
Space Vacuum MONSTERS!
Meet The Star Trek COMPUTER!
FATE or Physics?
ICE Insanity!
SCREAMING For LOVE!
The LIBRARY of INFINITY!
ECLIPSE For Cavemen!
READ No More!
MUSIC In SPACE - With Chris Carberry of EXPLORE MARS!
ANCIENT Libraries!
EATING Like Pandas!
REPOPULATE The Earth!
STEAM World!
The HOLODECK
TARDIGRADE Powered Humans!
Holographic TEACHERS!
SHOCK Week!
MUSIC of Gravitational Waves: Beyond The IF!
MUSIC of Gravitational Waves! With C. Renee JAMES
BRAIN Swap!
Santa's Physics Extravaganza: Beyond The IF!
Santa's Physics Extravaganza!
SLEEP No More!
Silent But DEADLY
Throw It ALL In The CRISPR!
Ultra Massive ASTEROID!
Ultra QUIET City!
BULK Over Beauty!
Martinis On VENUS!
BEES Control The Weather!
Scoop Of EARTH!
Alien MUMMIES!
X-Ray Vision!
MUON Madness!
Human SWARM!
Recording BRAINS!
Space JUNK!
FROZEN Time Travel!
Space Vacuum MONSTERS!
Underwater CIVILIZATION
Radical SENSATIONS!
LIFE from Phosphorous!
Blade Runner REPLICANTS
Living FOREVER!
Meet The Star Trek COMPUTER!
ICE Insanity!
MYST Linking Books to OTHER WORLDS
REMOTE Control BRAINS!
ADA Lovelace - PROGRAMMER #1
Mr. SPOCK In The House!
BATS - With Emily Driscoll!
Humans to MARS! With Chris Carberry of EXPLORE MARS
SPACE Is An OCEAN!
Robot CARS! With Robert PEPPER
OXYGEN Overload!
AMOK Intelligence with special guest HAL 9000!
One TIME ZONE To Rule Them All!
DINOSAUR Hospital!
COSMIC String Attack!
Bad PLACEBO!
Artificial IF-telligence!
Super Duper SUPERCONDUCTORS
WHALE Sized HUMANS!
More Scientific BREAKTHROUGHS Than EVER!
ZOMBIE Fungus! The Science of "The Last of Us"
TOXOPLASMA Gondii!
METEOR Rain!
FUSION Fiesta!
When CONSTANTS Get Shaky!
No Opposable Thumbs?
Stop! In The Name of LAVA
2022-02-11 Eat ANYTHING!
Animals TALK Back!
Atoms The Size of LEGOS!
Life Inside The STARLINK Sphere!
The Milky Way Is ALIVE - With Dr. Moiya McTier!
Criminal COCKATOOS!
Alastair REYNOLDS & Brain RADIO!
PIG Necromancy?
CANCER Virus Hunters -- with Gregory J. Morgan!
A Nation Without SANITATION!
Monkeypox UPDATE
Ancient MAYAN Astronomy!
FLOATING Continents!
AIRSHIPS With Joe Scott!
Galileo Sees The WEBB Images!
Beware ET Bearing GIFTS!
The AETHER - Part 2!
The AETHER Is All Around YOU
Carl SAGAN & The Alien MIND
GENDER Free World
QUANTUM Internet!
Pickpocketing GENES?
Panspermia? PANSPERMIA!
ZAP That Cancer AWAY - with Dr. Frank KEARLY!
POWER In The WILD with Lee Alan Dugatkin!
How To REBOOT Your Civilization
Summiting On MARS with Chris Carberry!
Gecko STICKY Power!
Quantum STEAMPUNK - With Theoretical Physicist Nicole Yunger Halpern!
The BBC Spaghetti Trees!
Science Class in... Ancient Babylon!
The Mechanics of LUCK
AMOK Daylight Savings TIME!
Get Parasite, Get Sexy?
Ultra VAX? Bring It!
Atoms The Size of LEGOS!
Eat ANYTHING!
YOUR Personal Role In Space Exploration — w/The PLANETARY SOCIETY’s Casey Dreier
No FOSSIL FUEL For You!
Berenstain Bears & The MESHUGGENA EFFECT
No Opposable Thumbs?
"Gift-wrappus" PARK? Dinosaur PETS For Everyone!
Riding GRAVITY FORCE ONE with KIRBY RUNYON
OhMyCron! Covid News Update (Dec 9, 2021)
DUNE - Holy Spit!
World War TROLLS? Social Media During WW2!
Crabs!
Stop! In The Name of LAVA
The SUPERSTITION Industrial Complex: Factories of LUCK!
Theory of Everything: CANCELED? Brian Keating Imagines the Impossible!
Waiter, There's a Fly In My PRIMORDIAL SOUP!
Superman Virus!
The Industrial BICYCLE Revolution!
AVI LOEB Is Hunting For E.T. With MEGAPIXELS, Millions, And MOXY
UFO's: A Powerful Teachable Moment? A Flying Roundtable Talk With The UCR Podcast!
NAKED Mars Rats!
Can You BREATHE Like A WHALE? With Vanessa Pirotta!
The Dark Art of SUNSHINE
NO ALIENS Anywhere??? Zilch. Nada. BUPKIS!
TOTAL PERSPECTIVE VORTEX
Multiverse Cocktail Hour
Hot Rod Rocket Cars, Burnin' Mars Gas!
No OCEANS? Oh, shiiiiii---!!!
Reimagining COSMOLOGY From Inside YOU - With Hakeem OLUSEYI
YOUR Personal Role In Space Exploration — w/The PLANETARY SOCIETY’s Casey Dreier
VIRGIN BIRTH Run Amok! Unstoppable Parthenogenic Organisms
Multi-dimensional MAILBAG Explosion!
Secrets Of Making A UFO DOCUMENTARY
TIC TAC UFO'S Bringing FRESH Science? With MICK WEST!
Microbreweries on MARS! - With CHRIS CARBERRY of the SPACE DRINKS Association!
Solar WIND Makes For A Very BAD HAIR DAY
When NEIGHBORS Get Into An ARMS Race!
Put A Man On The EARTH! - with Nancy Atkinson
GODZILLA vs KONG vs SCIENCE!
PLANET of the MARTIAL ARTS Masters: Capoeira, Karate, Kung Fu and YOU!
WTiF Humans Spoke Like Animals?
That FIRST DAY Riding The VIRUS — One Year Ago
When COVID Was Young And Restless - 1 YEAR AGO
SLEEPY Sickness Returns!
Eyes MILES Wide! Creatures With NEUTRINO VISON?
NAKED Mars Rats!
The NOISIEST Place In The GALAXY!!!!!!
No COSMOS For You with Jo Marchant!
Junkyard GALAXY!
MIND MELD with a VIRUS!
Ancient Babylonian INTERNET!
Life Aboard ACHILLES SHIELD
VAX Voyage DEBRIEF!
Edison VS Tesla - REMATCH
Duck! WHITE BLOOD Cells Coming!
YouTube For Your BRAIN!
Ride The VACCINE!
SOLSTICE Special: Paul McAULEY Shrinks The SUN!
MUTANTS vs. MASKS!
Holiday Mailbag BONANZA!
The VACCINE At The End Of The TUNNEL!
BLOCK (Party!) UNIVERSE
ABUNDANCE Run Amok! A Star Trek IF!
WTIF News - Covid Wears A MINK Coat!
Time Travel TRAFFIC JAM! With TOM MERRITT!
Report from CHINA!
93 - EINSTEIN'S WAR - Part Two
92 - Einstein's War - Part One
REINCARNATION, Let's Do This!
WTIF News - GOOD News? YEAH!!!
WTif Humans Had TAILS?!
WTIF News - It Came Outta NOWHERE!
SMILE, Aliens Are WATCHING!
WTIF News - When DATA Gets AGGRAVATED!
ZOMBIES!
WTIF News - Decisions, DECISIONS!
ROOMBAS With The Power Of BLACK HOLES!
The PERFECT Planet!
Let's CRISPR with Carl ZIMMER!
Breaking NOBEL News!
GENIUS Run Amok!
5,000 MUTANTS - Don't Panic
RADIOACTIVITY Shutdown!
Breathe At Your Own RISK?
A Video GAME That Steals Your BRAIN? With Dr. KIKI!
VAX Update - Safety FIRST!
The BERSERKER Hypothesis
Stop The UNIVERSE, I Want To Get Off!
WTIF News - Quarantine Your POOP?
ROCKETS Without Rocket Science?
WTIF News: Masks vs. Lasers!
WARP Speed ASTRONOMY?
WTIF News: VANISHING Antibodies?
The ARTISTS Behind NASA's Artist Depictions!
WTIF News: POOL Testing?
Teeny TINY Earth!
COVID Glowing in the Dark?
WTIF News: Herd Immunity!
Ooda Loop
How Does IMAGINATION Work?
WTIF News: COVID-19 Has A Very Busy PASSPORT
ONE Language For ALL?
WTIF News: Are We Doomed To REPEAT The 1918 PANDEMIC?
Earth In A BOTTLE!
WTIF News: SCIENCE-ing While Distancing!
BIRTHPLACE Of The Virus?
Ultra Fast EVOLUTION?
WTIF News: HAIRCUT To The Danger Zone!
Entangled BRAINS?
Welcome Back, ANIMALS! With Biologist Vanessa Pirotta
WTIF News - MASKS: Pro Tips!
WTIF News - COVID In The Air?
Quarantine Without INTERNET? Andy IHNATKO's Alternate History!
Crank Calling COVID!
Can a VIRUS Wear a WHITE HAT?
SPECIAL EPISODE: What the PANDEMIC? with Virologist Gaby Paniccia
The EYE Of AMAZ-AURON with Tom Merritt
RIDE Inside a VIRUS! With Molecular Virologist Gaby Paniccia
Hazmat FASHION! Life Under QUARANTINE
Backwards TIME! - !EMIT sdrawkcaB
Can ROBOTS Host A PODCAST?
CATS and EARTHQUAKES! With Geophysicist Celeste Labedz
Scientist VS Artist CAGE MATCH! - With JANCY McPHEE of the SciArt Exchange
If NASA Won MEGAMILLION$$$ - with CASEY DREIER from The PLANETARY SOCIETY!
POWER From PEOPLE??? Bow To Our MATRIX Overlords!
MEGASTRUCTURES! With Journalist & Science Fiction Author MATT WILLIAMS
Can We Open A PUB On MARS? w/the Author of ALCOHOL IN SPACE, Chris Carberry!
ALASTAIR REYNOLDS: Come Fly With Me... To MARS!
LIGHTSABERS For Hands! It’s a STAR WARS If!
Welcome to LAMARCK-issic Park! No Darwins Allowed!
Planet NIBURU Crashes Into EARTH! With Astronomer BOB KING
LEAP Into a QUANTUM COMPUTER!
I Married A NEANDERTHAL - A SciFi Love Story
Spelunking Deep Inside A SOLID STATE Brain!
Waltz INSIDE A Classical COMPUTER!
The AZTECS Were Awesome SEISMOLOGISTS - with Robin George Andrews!
Did VENUS Have VENUSIANS? w/Planetary Geologist KIRBY RUNYON!
If NASA Won MEGAMILLION$$$ - with CASEY DREIER from The PLANETARY SOCIETY!
The COMET from Beyond!
All the TREES are GONE? With Kyle Crichton!
Let's CRISPR with Carl ZIMMER!
SEAN CARROLL: Phone Calls from MANY WORLDS!
111 - Is There GOLD In Them ASTEROIDS!
110 - Inter-Galactic MAILBAG!
109 - CONQUER the SOLAR SYSTEM with Matt Williams!
108 - The HELIOPAUSE That Refreshes - with Kirby "NASA Man" Runyon!
107 - Land A Man On The EARTH! - with Nancy Atkinson
106 - What The MONKEY? Part 2 of Our TWIS Special!
105 - What The KIKI? Part 1 of Our TWIS Special!
104 - Walking on IO with Robin Andrews!
103 - Alastair Reynolds!
102 - WTiF Apollo Never Stopped? Encore Presenation With FRASER CAIN!
101 - Planet of POISON!
100 - Paul McAULEY Shrinks The SUN!
99 - Living INSIDE The Big BANG
98 - OWN Your Own BRAIN
97 - Spacetime GOGGLES
96 - How To Cook With A Star Trek REPLICATOR
95 - ASTROLOGY??? Heaven Help Us!
94 - MEAT Vs. The WORLD
93 - EINSTEIN'S WAR - Part Two - With Author MATT STANLEY
92 - EINSTEIN'S WAR - Part One - With Author MATT STANLEY
91 - Standing TALL On A Dwarf PLANET - Visit PLUTO With Kirby Runyon!
90 - VOLCANOES Like To Party - With Volcanologist Karen Holmberg!
89 - Fraser Cain - WTiF Apollo Never Stopped!
88 - Sci - Fi Author, DAN MOREN - "What The IF ENCRYPTION Runs Amok?"
87 - Galactic MAILBAG!
86 - The Science Of NOTHING - Ness!
85 - WTiF NASA Asked YOU For Help? - #NASAsocial At KSC & The Planetary Society's DAY OF ACTION
84 - Planet Of The Identical TWINS!
83 - COLD Blooded People
82 - CETACEAN INVASION! WTiF Whales Take Back The Land?
81 - Love Thy MOON
80 - HAGFISH - Champion Of The SLIMER BOWL!
79 - The Notorious BIG... BANG!
78 - PIGEON VISION
77 - Let's Pretend We're WHALES! Dr. Vanessa Pirotta Turns Us Into Super Smart Cetaceans
76 - Now We Know How Many BRAINS It Takes To Fill The Albert Hall
75 - WTiF You Could See EARTH RISE... With Your Own Eyes?
74 - Bubbling Brew Of PARALLEL UNIVERSE Stew
73 - It's An ARTHUR C. CLARKE Christmas!
72 - How To Tell People EARTH IS MELTING Without Killing The Party
71 - Does A Watched PLANET Ever BOIL?
70 - Victory Over GRAVITY!
69 - Dummies VS Gravity!
68 - Are We Entertaining The MARTIANS?
67 - KEPLER'S Planets & EGOMANIACAL Mathematicians!
66 - Danger, SLOW BRAIN Ahead! TIME DILATION From Head To Toe
65 - Can You Trust Your Family ROBOT?
64 - Physicist CLIFFORD JOHNSON Peers Deep Into A BLACK HOLE And Finds...?
63 - Astronomy SMELLS - The Art & Science Of Data Visualization
62 - GHOSTS!
61 - FLAT EARTH YouTube LIVE Special! - Joining Forces With The NonSequitur Show
60 - See The RADIO WAVES All Around YOU! The Science & Wonder Of Electromagnetic Fields
59 - DEEPER Into THE SUN We Go - Flying And Frying... For Science!
58 - How To THINK Like A BIRD! The Science of Animal Consciousness With DR. KIKI
57 - Our SUBMARINE Dives... Into The SUN!
56 - CRUSHED Or BROILED - Choose Your Fate At The Global Warming BBQ!
55 - Standing On A SIZZLING Earth - Ultra Fast Greenhouse Effect!
54 - BACTERIA Have Sent You A FRIEND REQUEST!
53 - Honey, I Shrunk The UNIVERSE!
52 - Is Earth A BOSS LEVEL, Or Just A LOOT BOX?
51 - Do We LIVE In A VIDEO GAME?
50 - DARK SIDE Of The EARTH
49 - OUMUAMAUA Has It's Eyes On YOU
48 - The Girl Scouts Make A STARGATE
47 - The Early Bird Gets The WORMHOLE
46 - WTiF There's ANIMALS On MARS? Cute Ones!
45 - The Plato Has Landed
44b - Bonus! - LOSING THE NOBEL PRIZE - Astronomer Brian KEATING On His Bestselling Book
44a - Journey To The CENTER OF THE GALAXY - With Astronomer Brian KEATING
43 - The World According To Greek Weirdos
42 - SuperMegaUltraHyperConnectedWORLD!
41 - M.I.T., The Mysterious Inter-Terrestrial
40 - DON'T FLIP OFF THE FRICTION
39 - Slip Slidin' Away!
38 - KILLER CLUTTER OF QUANTA!
37 - ASTROLOGY??? Heaven Help Us!
36 - BIG BANGS Are The Best Toys!
35 - Stephen Hawking Says, "FEAR NOT The Black Hole!"
34 - Struttin' Down QUANTUM Street
33 - How SLOW Can You GLOW?
32 - Black Hole BONGO!
31 - OOPS, Earth Did It Again
30 - Magnetic Poles Gonna ROLL
29 - ELON and the Incredible, Wonderful, Not Bad, Very GOOD Day
28 - Global Munchies Attack! But There's No More SALT!
27 - Earth Will ROCK YOUR WORLD
26 - Dance For Us, Human! DANCE!
25 - The "T" in "E.T." stands for TEASE. Arghhhh!
24 - Alien Abduction: PRO TIPS!
23 - Say Hello To A UFO
22 - Dinosaurs With Big Brains And Bad Ideas
21 - Welcome to FLAT EARTH, Safety Not Guaranteed
20 - When An IF! Runs AMOK
19 - The HAIKU At The Center Of The Universe
18 - MATH -- The Elephant In All The Rooms
17 - NASA Stolen By Philosophers Hopped Up On Pipe Smoke
16 - DO NOT TOUCH THE GRAVITY DIAL
15 - Dark Matter: You're Soaking In It!
14 - Who Shall Inherit The Earth, And How Furry Will They Be?
13 - Hot Rod Rocket Cars, Burnin' Mars Gas!
12 - Alien Big Mac Wrapper Found On The Moon
11 - Can God Be Hacked???
10 - Gee, Your Universe Smells Terrific