Short Wave

In November, the U.S. stopped production of the humble penny after 232 years in circulation. On today’s show, Darian Woods and Wailin Wong from NPR's daily economics podcast The Indicator unpack the fiscal math that doomed the penny, and an artist pay tribute to this American icon. Follow the Indicator on Apple Podcasts or Spotify. View more of Robert Wechsler’s artwork here.Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.Listen to Short Wave on Spotify and Apple Podcasts.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Many countries are frustrated with U.N. climate conferences. While some countries urgently want to transition away from fossil fuels — the main driver of global warming — others are blocking that language from climate agreements. Today on the show, Emily talks with Julia Simon from NPR’s climate desk. She takes us to Brazil and introduces us to a group of countries that are trying something new.Interested in more science and climate related news? Email us your question at [email protected] to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Humankind has the technology to go to space. Space architect Ariel Ekblaw says the bottleneck now is real estate: getting larger volumes of space stations in orbit. Her company is working on the equivalent of giant, magnetic space Legos—hexagons that could self-assemble in space into livable, workable structures. This episode, host Regina G. Barber talks to her about this space architecture and why she says that the goal isn’t to abandon Earth–but to off-world industries like agriculture and manufacturing in order to build a better Earth.If you liked this episode, check out our Space Camp series.Interested in more space tech episodes? Email us your question at [email protected] to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

This year, quantum science and computing came up a lot. There have been broad claims that quantum science and engineering could one day help cure diseases, design new materials, optimize supply chains -- or help in other ways not yet fathomable. And, while the Trump administration has made strides to cut scientific funding, quantum research is one of two things they’ve pledged to continue investing in – along with artificial intelligence. Meanwhile, scientists have been hard at work, pushing the research to move quantum engineering from sci-fi to real-world usefulness. All of this got science correspondent Katia Riddle wondering: When will all of this effort actually pay off? She talked to a lot of scientists to figure it out -- and to figure out how much scientist really understand about quantum science. She brings everything she learned onto the show today. To hear more Short Wave reporting on quantum clocks, check out this episode: Quantum Mechanics For BeginnersInterested in more quantum science? Email us your question at [email protected] to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Want to be a top notch candidate for hosting alien life? Then there's a few key requirements you should be aware of: Ideally, you're a large object like a moon or a planet; scientists suspect you also have an atmosphere and water; plus, you should orbit your star from a nice mid-range distance — in the "Goldilocks Zone" of habitability. Until recently, you would be competing against TRAPPIST-1 e. It's a planet outside of our solar system. TRAPPIST-1 e is also only 40 light years away, rocky and the same size as Earth, which prompted researchers to investigate whether it also has an atmosphere — and the potential for alien life. A team of researchers has been investigating TRAPPIST-1 e to learn more about its potential. Their answers, recently published in the Astrophysical Journal Letters, say a lot not just about this exoplanet, but about how scientists should refocus their hunt for alien life.Interested in more space science? Email us your question at [email protected] to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy