Why do some songs can stick with us for a long time, even when other memories start to fade? Science reporter (and former Short Wave intern) Rasha Aridi explains the neuroscience behind that surprising moment of, "Wow, how do I still remember that song?!" (Encore)

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With their base energized after the Supreme Court struck down national abortion access protections, Democrats are pushing to vote on a marriage bill ahead of midterm elections. And in Colorado, can this Republican Senate candidate — who recognizes Joe Biden's election win and believes in limited access to abortion — unseat a Democratic incumbent?

This episode: White House correspondent Tamara Keith, political correspondent Susan Davis, and congressional correspondent Deirdre Walsh.

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Big Bend National Park in Texas is home to the only remaining Guadalupe fescue in the United States. The grass is tucked away in the Chisos Mountains, high above the Chihuahuan Desert. These mountaintops form a string of relatively wet, cool oases called "sky islands" — unique, isolated habitats. But as the planet warms, species that depend on "sky island" habitats tend to get pushed even higher up the mountain — until they eventually run out. Carolyn Whiting, Park Botanist at Big Bend, talks to host Aaron Scott about why the little things are worth preserving.

Check out all the other episodes in our series on the research happening in U.S. public lands.

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Veterans' groups, students and attorneys are mobilizing to work at polling sites as health and political concerns have strained staffing in localities across the country. And a voter fraud crackdown in Florida has exposed the complicated state of voting rights in the state.

This episode: White House correspondent Tamara Keith, voting correspondent Hansi Lo Wang, and politics reporter Ashley Lopez.

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Julia Ruth has a pretty cool job: it takes a lot of strength, a lot of balance, and a surprising amount of physics.

As a circus artist, Julia has performed her acrobatic Cyr wheel routine around the world. But before she learned her trade and entered the limelight, she was on a very different career path--she was studying physics.

Julia talks with Emily (who also shares a past life in the circus) about her journey from physicist to circus artist, and how she learned her physics-defining acts.

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Donald Trump's GOP critics have begun to suggest that Republicans should nominate a fresh face, someone eligible for reelection after 2024. It's the kind of pragmatist argument that doesn't usually sway voters — but it does hint that party strategists are worried that Trump's poor standing with independent voters would against cost them the presidency.

This episode: political correspondent Susan Davis, senior political editor and correspondent Domenico Montanaro, and national political correspondent Mara Liasson.

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Scientists in the UK have discovered that if they take a pot meant for catching crabs and just add some bright lights, scallops flock through the door like it's Studio 54. Scallops are normally fished via trawling or dredging—methods that can cause lasting damage to delicate seafloor ecosystems. So this accidental discovery (the lights were initially added to attract crab) could have a significant impact on scallop fishing. We talk with one of the scientists, Robert Enever of Fishtek Marine, a company that creates sustainable fishing gear, about this collaboration between science, industry and conservation.

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Judge Eileen Cannon, who was appointed by former President Trump, has handed the former president a big, if temporary, win. She says an independent arbiter or a special master should review the 11,000 pages of papers the FBI took from Mar-a-Lago last month. Now what?

This episode: White House correspondent Tamara Keith, senior political editor and correspondent Domenico Montanaro, and national justice correspondent Carrie Johnson.

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Some of the world's best artificial waves are happening hundreds of miles from the ocean—in Waco, Texas. They're so good, they're attracting top professionals, casual riders and a science correspondent named Jon Hamilton. Jon's been following the wave technology for years and says the progress is huge. These days, pro surfers come from all over to try the "Freak Peak" of Waco.

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Research from the Voting Rights Lab, a nonpartisan group that tracks election laws, surveyed voters on their attitudes toward election systems and processes. They found that tweaking messaging related to elections impacts the way voters look at the way elections are conducted, possibly giving a roadmap for officials who want to fight back against disinformation.

This episode: political correspondent Ashley Lopez, voting correspondent Miles Parks, senior political editor & correspondent Domenico Montanaro.

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