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| Episode | Title | Date | Audio | Documents |
|---|---|---|---|---|
| 453 | Geologic Hotspots | December 30, 2025 | ||
| 452 | Sprites and Elves | December 23, 2025 | ||
| 451 | Rare Earth Recovery | December 16, 2025 | ||
| 450 | Return of the Mammoth | December 9, 2025 | ||
| 449 | Hey, Bird Brain! | December 2, 2025 | ||
| 448 | Super Sponges | November 25, 2025 | ||
| 447 | Swamp Architects | November 18, 2025 | ||
| 446 | Hydrogen from Rocks | November 11, 2025 | ||
| 445 | Sexy and Dangerous | November 4, 2025 | ||
| 444 | What Does a Mummy Smell Like? | October 28, 2025 | ||
| 443 | Plants That Eat Bugs | October 21, 2025 | ||
| 442 | Earth’s Rarest Mineral | October 14, 2025 | ||
| 441 | Energy Born of Earth | October 7, 2025 | ||
| 440 | Sulfur Stinks | September 30, 2025 | ||
| 439 | Pasteur’s Rabies Vaccine | September 23, 2025 | ||
| 438 | Chinese Moon Missions | September 16, 2025 | ||
| 437 | Indestructible Water Bears | September 9, 2025 | ||
| 436 | In Two Places at Once | September 2, 2025 | ||
| 435 | Trees Hold Their Breath | August 26, 2025 | ||
| 434 | History of Radio | August 19, 2025 | ||
| 433 | Whale Words | August 12, 2025 | ||
| 432 | Did Earth Have Rings | August 5, 2025 | ||
| 431 | Ocean Plastic Pollution | July 29, 2025 | ||
| 430 | Antarctic Dry Valleys | July 22, 2025 | ||
| 429 | Lost Underground City | July 15, 2025 | ||
| 428 | Frozen in Time | July 8, 2025 | ||
| 427 | Real-Life Hobbits | July 1, 2025 | ||
| 426 | Earth’s Greatest Migration | June 24, 2025 | ||
| 425 | Gold from Earthquakes | June 17, 2025 | ||
| 424 | World’s Deadliest Animal | June 10, 2025 | ||
| 423 | Fibonacci Sequence | June 3, 2025 | ||
| 422 | Mighty Moss | May 27, 2025 | ||
| 421 | Sunscreen, Coral and You | May 20, 2025 | ||
| 420 | Mount St. Helens Eruption | May 13, 2025 | ||
| 419 | Martian Meteorite | May 6, 2025 | ||
| 418 | Grand Teton National Park | April 29, 2025 | ||
| 417 | Extinct Tree, Alive Today | April 22, 2025 | ||
| 416 | Ancient Climate Control | April 15, 2025 | ||
| 415 | Mystery of the Wallace Line | April 8, 2025 | ||
| 414 | Potato Stones and Thunder Eggs | April 1, 2025 | ||
| 413 | Wildfires Impact Snowpack | March 25, 2025 | ||
| 412 | The Wood Age | March 18, 2025 | ||
| 411 | Earth’s Two Crusts | March 11, 2025 | ||
| 410 | Essential Algae | March 4, 2025 | ||
| 409 | We Moved the North Pole | February 25, 2025 | ||
| 408 | Secrets of Silent Flight | February 18, 2025 | ||
| 407 | Unicorns of the Sea | February 11, 2025 | ||
| 406 | Extreme Antarctica | February 4, 2025 | ||
| 405 | Where Did the Giant Mammals Go? | January 28, 2025 | ||
| 404 | Mystery of the Pyramids Solved | January 21, 2025 | ||
| 403 | Frogsicles | January 14, 2025 | ||
| 402 | How Planets Get Moons | January 7, 2025 | ||
| 401 | Life in Hydrothermal Vents | December 31, 2024 | ||
| 400 | Drilling into Earth’s Mantle | December 24, 2024 | ||
| 399 | Orangutan, Heal Thyself | December 17, 2024 | ||
| 398 | Earth’s First Geologists | December 10, 2024 | ||
| 397 | Earth’s Billion-Year Mystery | December 3, 2024 | ||
| 396 | The Humongous Fungus “Among-Us” | November 26, 2024 | ||
| 395 | Living in Lava Tubes | November 19, 2024 | ||
| 394 | When Small Organisms Merge | November 12, 2024 | ||
| 393 | Mother of Landsat | November 5, 2024 | ||
| 392 | Python Protein | October 29, 2024 | ||
| 391 | Healing the Ozone Layer | October 22, 2024 | ||
| 390 | Solar Flares versus Coronal Mass Ejections | October 15, 2024 | ||
| 389 | Dino Diseases | October 8, 2024 | ||
| 388 | The Changing Tides | October 1, 2024 | ||
| 387 | Opposable Thumbs Up! | September 24, 2024 | ||
| 386 | Super Harvest Bloody Moon | September 17, 2024 | ||
| 385 | The First Dinosaur Fossil | September 10, 2024 | ||
| 384 | More Auroras | September 3, 2024 | ||
| 383 | Pompeii: The Resurrection | August 27, 2024 | ||
| 382 | Pompeii: The Destruction | August 20, 2024 | ||
| 381 | The Birth of Earth | August 13, 2024 | ||
| 380 | Plants Can Dance | August 6, 2024 | ||
| 379 | Mammoth Cave’s Rich History | July 30, 2024 | ||
| 378 | Deep Ocean Drilling | July 23, 2024 | ||
| 377 | Shark Planet | July 16, 2024 | ||
| 376 | Rust Results | July 9, 2024 | ||
| 375 | Do Aquatic Creatures Get Thirsty? | July 2, 2024 | ||
| 374 | Much More Than Absolute Zero | June 25, 2024 | ||
| 373 | The Burning River | June 18, 2024 | ||
| 372 | Big Bend National Park is 80 | June 11, 2024 | ||
| 371 | Rio Grande's Big Bend | June 4, 2024 | ||
| 370 | The Longest, Deepest Diver | May 28, 2024 | ||
| 369 | Ideal Material | May 21, 2024 | ||
| 368 | Cicada Cacophony | May 14, 2024 | ||
| 367 | If Earth Had No Moon | May 7, 2024 | ||
| 366 | Swimming in the Sahara | April 30, 2024 | ||
| 365 | Leonardo’s Rule of Trees | April 23, 2024 | ||
| 364 | Life in the Fiery Fields | April 16, 2024 | ||
| 363 | Stylish Stegosaurus | April 9, 2024 | ||
| 362 | Solar Maximum Is Heating Up | April 2, 2024 | ||
| 361 | Secrets Under Ice | March 26, 2024 | ||
| 360 | Fish out of Water | March 19, 2024 | ||
| 359 | Pi (π) Is Everywhere | March 12, 2024 | ||
| 358 | Great American Eclipse II—April 8, 2024 | March 5, 2024 | ||
| 357 | Bees of the Seas | February 27, 2024 | ||
| 356 | Sinkholes | February 20, 2024 | ||
| 355 | Delicate T. rex Smile | February 13, 2024 | ||
| 354 | Cities Are Sinking | February 6, 2024 | ||
| 353 | We Are Stardust | January 30, 2024 | ||
| 352 | Supersonic Jets | January 23, 2024 | ||
| 351 | Rain Shadow | January 16, 2024 | ||
| 350 | Fast-Moving India | January 9, 2024 | ||
| 349 | Extreme Nematodes | January 2, 2024 | ||
| 348 | Deep Time | December 26, 2023 | ||
| 347 | Holiday Mistletoe | December 19, 2023 | ||
| 346 | Glaciers Versus Volcanoes | December 12, 2023 | ||
| 345 | Roman Aqueducts | December 5, 2023 | ||
| 344 | Our Water Supply Is Blown Away | November 28, 2023 | ||
| 343 | I Yam Not A Sweet Potato | November 21, 2023 | ||
| 342 | Transforming Batteries | November 14, 2023 | ||
| 341 | Hearing, Speaking Plants | November 7, 2023 | ||
| 340 | Spooky-Smart Slime Molds | October 31, 2023 | ||
| 339 | When Paints Don’t Need Pigment | October 24, 2023 | ||
| 338 | So Many Fish in the Sea | October 17, 2023 | ||
| 337 | How Tall Can Earth’s Mountains Get? | October 10, 2023 | ||
| 336 | Evolution Hatches the Egg | October 3, 2023 | ||
| 335 | Why Some Trees Splurge on Red | September 26, 2023 | ||
| 334 | What Did We Domesticate First? | September 19, 2023 | ||
| 333 | Singing Sand Dunes | September 12, 2023 | ||
| 332 | Puffy Clouds Weigh In | September 5, 2023 | ||
| 331 | Civilized Ants | August 29, 2023 | ||
| 330 | Meteorite Victims | August 22, 2023 | ||
| 329 | The Roof of Africa | August 15, 2023 | ||
| 328 | How Zebras Got Their Stripes | August 8, 2023 | ||
| 327 | The Great Shrinking Salt Lake | August 1, 2023 | ||
| 326 | Earth’s Largest Shark | July 25, 2023 | ||
| 325 | Petrified Wood | July 18, 2023 | ||
| 324 | Dangerous Haboobs | July 11, 2023 | ||
| 323 | Walking on Water | July 4, 2023 | ||
| 322 | Treasure on the Seafloor | June 27, 2023 | ||
| 321 | Giraffes Have High Blood Pressure | June 20, 2023 | ||
| 320 | Raising Hail | June 13, 2023 | ||
| 319 | Invisible Forces Shape Waves | June 6, 2023 | ||
| 318 | Britain’s Stone Age Mines | May 30, 2023 | ||
| 317 | Swelling Seas | May 23, 2023 | ||
| 316 | Dam Good | May 16, 2023 | ||
| 315 | Carlsbad Caverns | May 9, 2023 | ||
| 314 | Dinosaurs Run Hot and Cold | May 2, 2023 | ||
| 313 | The Measure of a Meter | April 25, 2023 | ||
| 312 | Iconic Cacti | April 18, 2023 | ||
| 311 | Gateway to Hell | April 11, 2023 | ||
| 310 | Easter Island Egg Hunt | April 4, 2023 | ||
| 309 | Twister Myths | March 28, 2023 | ||
| 308 | Springtime Impact Apocalypse | March 21, 2023 | ||
| 307 | Don’t Pick Your Poison | March 14, 2023 | ||
| 306 | Sauropod-Sized Tractors | March 7, 2023 | ||
| 305 | Grub’s Up! | February 28, 2023 | ||
| 304 | 4-Billion-Year-Old Time Crystals | February 21, 2023 | ||
| 303 | Dung Beetle Astronomers | February 14, 2023 | ||
| 302 | The Oldest Geological Map | February 7, 2023 | ||
| 301 | Outback Opals | January 31, 2023 | ||
| 300 | The Making of Yellowstone | January 24, 2023 | ||
| 299 | Amazing Octopuses | January 17, 2023 | ||
| 298 | Tonga: A Year Later | January 10, 2023 | ||
| 297 | What is a Fjord? | January 3, 2023 | ||
| 296 | Older Than Methuselah | December 28, 2022 | ||
| 295 | Nazca Ojos | December 21, 2022 | ||
| 294 | Antarctica’s Largest Land Creature | December 14, 2022 | ||
| 293 | New Zealand’s Fatal Eruption | December 7, 2022 | ||
| 292 | Lightning Cleans the Atmosphere | November 30, 2022 | ||
| 291 | Tyrannosaur on Your Table | November 23, 2022 | ||
| 290 | The Demise of Mesopotamian Empires | November 16, 2022 | ||
| 289 | World’s Strongest Metal | November 9, 2022 | ||
| 288 | The Sum of All Humans | November 2, 2022 | ||
| 287 | Beneficial Leeches | October 26, 2022 | ||
| 286 | First Map of the Ocean Floor | October 19, 2022 | ||
| 285 | How Fossils Form | October 12, 2022 | ||
| 284 | How Trees Lift Water | October 5, 2022 | ||
| 283 | Pacific Ring of Fire | September 28, 2022 | ||
| 282 | DNA Out of Thin Air | September 21, 2022 | ||
| 281 | Super Cool Cities | September 14, 2022 | ||
| 280 | Ferns Get Social | September 7, 2022 | ||
| 279 | Fantastic Ferns | August 31, 2022 | ||
| 278 | Depleting the Ogallala Aquifer | August 24, 2022 | ||
| 277 | Making a 200,000-Year-Old Bed | August 17, 2022 | ||
| 276 | Water Conservation | August 10, 2022 | ||
| 275 | It’s Always Oyster Season | August 3, 2022 | ||
| 274 | Powerful Pot Ash | July 27, 2022 | ||
| 273 | White Sands Footprints | July 20, 2022 | ||
| 272 | Cloudy with a Chance of Bugs | July 13, 2022 | ||
| 271 | Monsoon Rains | July 6, 2022 | ||
| 270 | More Valuable Than Gold | June 26, 2022 | ||
| 269 | Energy Efficiency of Condors | June 19, 2022 | ||
| 268 | Lake Kivu’s Explosive Secret | June 12, 2022 | ||
| 267 | A Fragile History | June 5, 2022 | ||
| 266 | Fireflies Flash | May 29, 2022 | ||
| 265 | Darwin’s Terraforming Experiment | May 22, 2022 | ||
| 264 | Very Slow Slips | May 15, 2022 | ||
| 263 | A New Way to Measure Rainfall | May 8, 2022 | ||
| 262 | South Pole Sleepover | May 1, 2022 | ||
| 261 | Tuxedoed Torpedoes | April 24, 2022 | ||
| 260 | Surviving a Landslide | April 17, 2022 | ||
| 259 | Fertilizers Feed the World | April 10, 2022 | ||
| 258 | Disappearing Rainbows | April 3, 2022 | ||
| 257 | Tornado Genesis | March 27, 2022 | ||
| 256 | Coelacanth Centenarians | March 20, 2022 | ||
| 255 | Saint Patrick’s Snake-Free Ireland | March 13, 2022 | ||
| 254 | Sponges on the Move | March 6, 2022 | ||
| 253 | Snowball Earth | February 27, 2022 | ||
| 252 | Biomass Census | February 20, 2022 | ||
| 251 | Vikings in North America | February 13, 2022 | ||
| 250 | Pleistocene Avocados | February 6, 2022 | ||
| 249 | Ancient Antibiotic | January 30, 2022 | ||
| 248 | Smoky Stratosphere | January 23, 2022 | ||
| 247 | The Northwest Passage | January 16, 2022 | ||
| 246 | Undersea Avalanches | January 9, 2022 | ||
| 245 | Memoir of a Mammoth | January 2, 2022 | ||
| 244 | Not a Creature Was Stirring | December 25, 2021 | ||
| 243 | The Fahrenheit Few | December 18, 2021 | ||
| 242 | Space-Rock Shooting Stars | December 11, 2021 | ||
| 241 | Driftless Oasis | December 4, 2021 | ||
| 240 | A Story on Paper | November 27, 2021 | ||
| 239 | Long-Haul Godwit | November 20, 2021 | ||
| 238 | Suez Traffic Jam | November 13, 2021 | ||
| 237 | Marie Curie’s Double Nobel | November 6, 2021 | ||
| 236 | Beneficial Bats | October 30, 2021 | ||
| 235 | (Re)Birth of the Amazon | October 23, 2021 | ||
| 234 | P Is for Life | October 16, 2021 | ||
| 233 | Yes, We Had No Bananas | October 9, 2021 | ||
| 232 | Super-Sniffers | October 2, 2021 | ||
| 231 | Earth, Wind and Water | September 25, 2021 | ||
| 230 | Flamingo-Pink Lakes | September 18, 2021 | ||
| 229 | Man Made Fire, Fire Made Man | September 11, 2021 | ||
| 228 | Flammable Planet | September 4, 2021 | ||
| 227 | Cold Lightning | August 28, 2021 | ||
| 226 | Seismic Whale Song | August 21, 2021 | ||
| 225 | Death Valley’s Slithering Stones | August 14, 2021 | ||
| 224 | Gems from Deep Earth or Space | August 7, 2021 | ||
| 223 | Polar Excursions | July 31, 2021 | ||
| 222 | Earth’s Flipping Poles | July 24, 2021 | ||
| 221 | Mosquito-Inspired Injections | July 17, 2021 | ||
| 220 | The Thing about String | July 10, 2021 | ||
| 219 | Coral Bleaching | July 3, 2021 | ||
| 218 | Maya Water Purification | June 26, 2021 | ||
| 217 | Earthquake Early Warning | June 19, 2021 | ||
| 216 | Kola Superdeep | June 12, 2021 | ||
| 215 | Cycling Milanković | June 5, 2021 | ||
| 214 | Earth’s Odd Orbit | May 29, 2021 | ||
| 213 | Astronaut Geology Camp | May 22, 2021 | ||
| 212 | The Original Moon Shot | May 15, 2021 | ||
| 211 | Solar Superstorm | May 8, 2021 | ||
| 210 | Topping Off Everest | May 1, 2021 | ||
| 209 | Farming the Seas | April 24, 2021 | ||
| 208 | Ocean Giants | April 17, 2021 | ||
| 207 | A Really Odd Mammal | April 10, 2021 | ||
| 206 | The Value of Snowpack | April 3, 2021 | ||
| 205 | Bite of the Bumblebee | March 27, 2021 | ||
| 204 | The Deepest Dive | March 20, 2021 | ||
| 203 | The Deepest Deep | March 13, 2021 | ||
| 202 | Beneficial Viral DNA | March 6, 2021 | ||
| 201 | Fossil Viruses | February 27, 2021 | ||
| 200 | The Man ON the Moon | February 20, 2021 | ||
| 199 | Legends of Amethyst | February 13, 2021 | ||
| 198 | Your Friendly Virome | February 6, 2021 | ||
| 197 | Blue-blooded Horseshoe Crabs | January 30, 2021 | ||
| 196 | Horseshoe Crabs: Living Fossils | January 23, 2021 | ||
| 195 | Why Fish Don’t Freeze | January 16, 2021 | ||
| 194 | How Snowflakes Grow | January 9, 2021 | ||
| 193 | Winter Sun Close Encounter | January 2, 2021 | ||
| 192 | Just a Second | December 25, 2020 | ||
| 191 | How 10 Fingers Became 12 Hours | December 18, 2020 | ||
| 190 | Wondrous Waterfalls | December 11, 2020 | ||
| 189 | Under Greenland’s Ice Sheet | December 4, 2020 | ||
| 188 | Platinum Record for the Ice Age | November 27, 2020 | ||
| 187 | Death Apples in Paradise | November 20, 2020 | ||
| 186 | Making the Invisible Visible | November 13, 2020 | ||
| 185 | 125 Years of X-Rays | November 6, 2020 | ||
| 184 | Creepy Corpse Flowers | October 30, 2020 | ||
| 183 | How Do Animals Vote? | October 23, 2020 | ||
| 182 | Anoles Get a Grip | October 16, 2020 | ||
| 181 | Hanging with Geckos | October 9, 2020 | ||
| 180 | Copper’s Superpower | October 2, 2020 | ||
| 179 | Riding the Jet Streak | September 25, 2020 | ||
| 178 | Equinox Alignments | September 18, 2020 | ||
| 177 | Sunspot Strandings | September 11, 2020 | ||
| 176 | Nickel Farming | September 4, 2020 | ||
| 175 | Honeybee Blight | August 28, 2020 | ||
| 174 | The Business of Bees | August 21, 2020 | ||
| 173 | How Bees Make Honey | August 14, 2020 | ||
| 172 | The Buzzy Life of HoneyBees | August 7, 2020 | ||
| 171 | The Oldest Story Ever Told | July 31, 2020 | ||
| 170 | Aboriginal Star Maps | July 24, 2020 | ||
| 169 | 75 Years into the Atomic Age | July 17, 2020 | ||
| 168 | The Day's Getting Longer | July 10, 2020 | ||
| 167 | Swarming Locusts | July 3, 2020 | ||
| 166 | Finding Faults with the Inca | June 25, 2020 | ||
| 165 | The Ever Green Stone | June 18, 2020 | ||
| 164 | Maximizing GPS | June 11, 2020 | ||
| 163 | Ultra-Black | June 4, 2020 | ||
| 162 | Pando - A Forest of One | May 28, 2020 | ||
| 161 | Low-Temperature Geothermal | May 21, 2020 | ||
| 160 | Making the Great Lakes | May 14, 2020 | ||
| 159 | Mammoth Traps | May 7, 2020 | ||
| 158 | Illuminating Incandescent Bulbs | April 30, 2020 | ||
| 157 | The Dust Bowl 3: Resolution | April 23, 2020 | ||
| 156 | The Dust Bowl 2: Disaster Strikes | April 16, 2020 | ||
| 155 | The Dust Bowl 1: Storm Brewing | April 9, 2020 | ||
| 154 | True Blue | April 2, 2020 | ||
| 153 | The Amazing Monarch Relay | March 26, 2020 | ||
| 152 | Iceland, the Geothermal Pioneer | March 19, 2020 | ||
| 151 | Atmospheric Rivers | March 12, 2020 | ||
| 150 | California’s Super Flood | March 5, 2020 | ||
| 149 | Preserving with Salt | February 27, 2020 | ||
| 148 | Floating Rocks | February 20, 2020 | ||
| 147 | Plight of the Pangolin | February 13, 2020 | ||
| 146 | Airbursts | February 6, 2020 | ||
| 145 | Caught in Quicksand | January 30, 2020 | ||
| 144 | Gold in Them Thar Trees | January 23, 2020 | ||
| 143 | The Great Triassic Floods | January 16, 2020 | ||
| 142 | Tragedy on Ice | January 9, 2020 | ||
| 141 | Why is Ice slippery? | January 2, 2020 | ||
| 140 | Spinning a New Years Tale | December 26, 2019 | ||
| 139 | The Miracles of Reindeer | December 19, 2019 | ||
| 138 | Avalanche! | December 12, 2019 | ||
| 137 | Hot Springs Eternal | December 5, 2019 | ||
| 136 | Earth’s Loneliest Species | November 28, 2019 | ||
| 135 | Last Branch on the Family Tree | November 21, 2019 | ||
| 134 | Undersea Aquifer | November 14, 2019 | ||
| 133 | Weight of Water | November 7, 2019 | ||
| 132 | Why Pines Are Evergreen | October 31, 2019 | ||
| 131 | Blue Sky, Blue Sunset? | October 24, 2019 | ||
| 130 | Water, Water Everywhere | October 17, 2019 | ||
| 129 | Ice Age Rebound | October 10, 2019 | ||
| 128 | Salmon Are Born to Navigate | October 3, 2019 | ||
| 127 | Fall Colors | September 23, 2019 | ||
| 126 | Two Sides of the Sun | September 16, 2019 | ||
| 125 | The Essential Element | September 9, 2019 | ||
| 124 | Starting Off on the Wrong Foot | September 2, 2019 | ||
| 123 | The Wandering Pole | August 26, 2019 | ||
| 122 | Triple North Pole | August 19, 2019 | ||
| 121 | Carving a Canyon | August 12, 2019 | ||
| 120 | Homing Pigeons | August 5, 2019 | ||
| 119 | How Earth Makes Fresh Water | July 29, 2019 | ||
| 118 | The Star of India | July 22, 2019 | ||
| 117 | Green Iceland/Icy Greenland | July 15, 2019 | ||
| 116 | Tuskless Elephants | July 8, 2019 | ||
| 115 | The Geology of Fireworks | July 1, 2019 | ||
| 114 | Cooler in the Mountains | June 24, 2019 | ||
| 113 | Pterosaurs | June 17, 2019 | ||
| 112 | Beach Reading | June 10, 2019 | ||
| 111 | Fire Weather | June 3, 2019 | ||
| 110 | Wildfires | May 27, 2019 | ||
| 109 | (Almost) A Watershed Event | May 20, 2019 | ||
| 108 | Magnetoreception | May 13, 2019 | ||
| 107 | Spindletop | May 6, 2019 | ||
| 106 | The Scent of Rain | April 29, 2019 | ||
| 105 | Migrating Plants | April 22, 2019 | ||
| 104 | Climate Escalator | April 15, 2019 | ||
| 103 | The Alien Element | April 8, 2019 | ||
| 102 | Core of the Realm | April 1, 2019 | ||
| 101 | The Man and the Canyon | March 25, 2019 | ||
| 100 | Full Steam Ahead | March 18, 2019 | ||
| 99 | Storing CO2 | March 11, 2019 | ||
| 98 | Spidey Silk | March 4, 2019 | ||
| 97 | Surviving the Asteroid | February 25, 2019 | ||
| 96 | Real-World Apocalypse | February 18, 2019 | ||
| 95 | Minerals Evolve, Too | February 11, 2019 | ||
| 94 | Swimming with Sharks | February 4, 2019 | ||
| 93 | Earth’s Ocean Conveyor | January 28, 2019 | ||
| 92 | Why the Greeks Liked Earthquakes | January 21, 2019 | ||
| 91 | Our Most Common Element | January 14, 2019 | ||
| 90 | Trees Can Talk | January 7, 2019 | ||
| 89 | The Secret Life of Soil | December 31, 2018 | ||
| 88 | Volcanoes and Eclipses | December 24, 2018 | ||
| 87 | Winter Solstice Celebrations | December 17, 2018 | ||
| 86 | Powering the World | December 10, 2018 | ||
| 85 | The Iceman Goeth | December 3, 2018 | ||
| 84 | Ice Age Brexit | November 26, 2018 | ||
| 83 | So Cheap Yet So Valuable | November 19, 2018 | ||
| 82 | Water of Life | November 12, 2018 | ||
| 81 | Ripples in Earth’s Crust | November 5, 2018 | ||
| 80 | High-Impact Mystery | October 29, 2018 | ||
| 79 | Rivers of Wind | October 22, 2018 | ||
| 78 | Best Friends Forever | October 15, 2018 | ||
| 77 | Tale of Two Volcanoes | October 8, 2018 | ||
| 76 | Managing Aquifers | October 1, 2018 | ||
| 75 | What a Waste! | September 24, 2018 | ||
| 74 | Bugs on the Wing | September 17, 2018 | ||
| 73 | Cleopatra Loved the Flood | September 10, 2018 | ||
| 72 | Devils Tower | September 3, 2018 | ||
| 71 | The Curious Tale of Whales | August 27, 2018 | ||
| 70 | From Greenhouse to Icehouse | August 20, 2018 | ||
| 69 | Greenhouse–Icehouse Earth | August 13, 2018 | ||
| 68 | Fire in Ice | August 6, 2018 | ||
| 67 | Amazing Caves | July 30, 2018 | ||
| 66 | Who Killed the Neanderthals? | July 23, 2018 | ||
| 65 | More Earthquakes, More Places | July 16, 2018 | ||
| 64 | Fossil Water | July 9, 2018 | ||
| 63 | Storing Energy in Air | July 2, 2018 | ||
| 62 | California’s Sinking Valley | June 25, 2018 | ||
| 61 | Stories Hidden in Pollen | June 18, 2018 | ||
| 60 | Melting Permafrost | June 11, 2018 | ||
| 59 | The Colorful History of Paint | June 4, 2018 | ||
| 58 | How Old Is Earth? | May 28, 2018 | ||
| 57 | The First Americans | May 21, 2018 | ||
| 56 | El Niño | May 14, 2018 | ||
| 55 | World’s Oldest Water | May 7, 2018 | ||
| 54 | The Mediterranean Desert | April 30, 2018 | ||
| 53 | Cloud Microbes | April 23, 2018 | ||
| 52 | Human-Induced Earthquakes | April 16, 2018 | ||
| 51 | Rare Earth Elements | April 9, 2018 | ||
| 50 | World’s Tallest Mountain | April 2, 2018 | ||
| 49 | One-Part Harmony | March 26, 2018 | ||
| 48 | Lightning Safety | March 19, 2018 | ||
| 47 | The Water Cycle | March 12, 2018 | ||
| 46 | Birth of a Monster | March 5, 2018 | ||
| 45 | Fantastic Beasts | February 26, 2018 | ||
| 44 | Hail, Zealandia | February 19, 2018 | ||
| 43 | Water from Thin Air | February 12, 2018 | ||
| 42 | Exploring Earth’s Driest Deserts | February 5, 2018 | ||
| 41 | Hadrosaur Hightails It | January 29, 2018 | ||
| 40 | The Man in the Moon | January 22, 2018 | ||
| 39 | Cities Made of Sand | January 15, 2018 | ||
| 38 | Venice Holds Back the Sea | January 8, 2018 | ||
| 37 | Hurricane Harvey | January 1, 2018 | ||
| 36 | Recycling Carbon | December 25, 2017 | ||
| 35 | Life on Ice | December 18, 2017 | ||
| 34 | Global Smartphones | December 11, 2017 | ||
| 33 | The Great Smog | December 4, 2017 | ||
| 32 | Our Unmapped Ocean | November 27, 2017 | ||
| 31 | Under Pressure—Geysers | November 20, 2017 | ||
| 30 | Dinosaurs in Your Backyard | November 13, 2017 | ||
| 29 | Digging Soil | November 6, 2017 | ||
| 28 | Secrets of the Glacier | October 30, 2017 | ||
| 27 | Lightning Strikes | October 23, 2017 | ||
| 26 | Prehistoric Soundscape | October 16, 2017 | ||
| 25 | The Many Facets of Salt | October 9, 2017 | ||
| 24 | Dust in the Wind | October 2, 2017 | ||
| 23 | Landslides | September 25, 2017 | ||
| 22 | Measuring Gravity from Space | September 18, 2017 | ||
| 21 | Earth’s Changing Gravity | September 11, 2017 | ||
| 20 | Lithium Chill | September 4, 2017 | ||
| 19 | The Amazing Miracle Material | August 28, 2017 | ||
| 18 | Carbon Opposites | August 21, 2017 | ||
| 17 | Your Place in the World | August 14, 2017 | ||
| 16 | Total Eclipse of the Sun—8/21/17 | August 7, 2017 | ||
| 15 | The Longest Mountain Range | July 31, 2017 | ||
| 14 | The Dawn of Vision | July 24, 2017 | ||
| 13 | The Year Without a Summer | July 17, 2017 | ||
| 12 | Your Most Ancient Possession | July 10, 2017 | ||
| 11 | Magnetic Storms | July 3, 2017 | ||
| 10 | Eternal Calcium | June 26, 2017 | ||
| 9 | Tiny Titan | June 19, 2017 | ||
| 8 | Lithium Power | June 12, 2017 | ||
| 7 | CSI Pliocene: Lucy | June 5, 2017 | ||
| 6 | Geodynamo | May 29, 2017 | ||
| 5 | Diamond Data | May 22, 2017 | ||
| 4 | Great Extinctions | May 15, 2017 | ||
| 3 | Life on a Giant Magnet | May 8, 2017 | ||
| 2 | The Day the Earth Shook | May 1, 2017 | ||
| 1 | Precious Water | April 24, 2017 |
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