Tomorrow Today: The Science Magazine: Recent Episodes

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Dive in to the fascinating world of science with Tomorrow Today. Your weekly dose of science knowledge. A show for everyone who's curious -- about our cosmos and how it works.

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Auroras can have very different shapes and colors. They occur when solar particles interact with the Earth's magnetic field. This week's viewer question comes from Rafael Nuñez in Finland.

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And how can you tell what they're dreaming? Researchers want to reveal the secrets of animals dreaming by measuring brainwaves of rats for instance.

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Men are ambitious, women good at multitasking, right? But how are these various skills reflected in the brain? This week's question for Tomorrow Today comes from Timothy Rintaugu from Kenya.

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Love originates in the brain, just like other emotions do. It sometimes makes our hormones go crazy and we sometimes can feel like we're on a roller coaster ride. But what exactly is going on inside us when we’re in love?

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Most modern airplanes have curved wingtip devices. How do these "winglets" work, and what benefits do they boast?

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So far no tropical cyclone has made it across the equator. It doesn't mean that it is not possible. In recent decades cyclones were rather moving away from the equator.

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The moon appears in the sky in different places at different times. Every day, it comes up around 50 minutes later than it did the day before. But it always rises in the east and sets in the west.

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This week's Tomorrow Today viewer question comes from Mohammad Billoh Jalloh in Sierra Leone.

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This week’s question comes from Amir Halep in Bosnia and Herzegovina.

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The European's Space Agency's longest trip ever is underway. The six billion kilometer, eight-year-long flight is meant to find out if Jupiter's moons, Ganymede, Callisto and Europa are capable of sustaining human life.

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This week's Tomorrow Today viewer question comes from E.S. Cheris

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Can lithium-ion batteries be recycled? To do so the output elements need to be separated from each other. But how does that work?

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The Tomorrow Today question this week is from Calixto Saldaña in Colombia.

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This week's question comes from Jorge Mondragon in Mexico.

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This week's viewer's question comes from Esomchukwu Ezeamaku in Nigeria.

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Just ask! This week's Tomorrow Day viewer's question comes from Rodrigo in Ecuador.

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To achieve an emissions-neutral future, the world will need a lot more photovoltaic systems than we have today. But space is in short supply. So where exactly can we put our solar panels?

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This week's DW viewer question comes from Jorge Macea of Colombia.

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This week's DW viewer question comes from Noemi Rosa Rebollo Franco from Mexico.

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This week's viewer question comes from Rogélio González Labastida in Mexico.

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This week's question comes from Wendel Geraldo in Brazil: What's being done about space junk?

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This week's question comes from Quetzalcoatl Tlatoani in Mexico.

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This week's Tomorrow Today question comes from Brown Mbadiwe in Nigeria.

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Physicist Laura Kreidberg studies exoplanets using the James Webb Space Telescope. It’s been beaming back fascinating, highly detailed images from space for several months.

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There's no need to remember birthdays, maps, special moments - it's all saved on your phone. But you might want to keep your brain in shape.

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This week's question to Tomorrow Today comes from Raphael Glary in Nigeria.

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Nuclear energy can be used to generate electricity without climate-damaging greenhouse gases. But there’s also the risk of a nuclear catastrophe and the problem of nuclear waste. Do we need nuclear energy to stop climate change?

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This week's question for Tomorrow Today! comes from Luis Correra in Panama.

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This week's Tomorrow Today viewer question comes from Demetrio Puentes Quintero in Colombia.

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This week's Tomorrow Today viewer question comes from Demetrio Puentes Quintero in Colombia.

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This week's viewer question comes from Rodrigo Moncayo in Ecuador. He wants to know whether it's true that water drains in opposite directions in the northern and southern hemispheres.

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This week's viewer question comes from Rodrigo Moncayo in Ecuador. He wants to know whether it's true that water drains in opposite directions in the northern and southern hemispheres.

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This week’s question on Tomorrow Today is from Telmires Alves Rodrigues. He would like to know: How do the moon and the sun stay where they are and not come crashing down to the Earth?

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This week’s question on Tomorrow Today is from Telmires Alves Rodrigues. He would like to know: How do the moon and the sun stay where they are and not come crashing down to the Earth?

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Tomorrow Today's viewer question this week comes from Elvin Kawale from Lilongwe in Malawi.

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This week's question comes from Oscar Raúl Pérez Cabrera from Mexico.

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In 2012, the Higgs boson particle was detected in an experiment at the European nuclear research organization, CERN. It was a milestone in scientific research. Yet there are still plenty of cosmic secrets to be discovered.

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This week's viewer question comes from Ignacio Muñoz Rengifo in Chile.

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Astronaut Matthias Maurer recently returned to Earth after spending almost half a year in space. Extraterrestrial stays can put a lot of strain on the human body. DW Reporter Lea Albrecht met up with him and asked: Has weightless life left its mark?

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This week's viewer question comes from Renato Monteiro in Brazil.

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Meat is, for many people, one of the most important sources of protein. But producing it causes climate-damaging CO2. Could that be used a protein source instead? A Finnish startup believes it can.

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In this week's Tomorrow Today, the viewer question comes from José Gabriel Ossa from Colombia.

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The construction industry releases enormous amounts of carbon dioxide. Now one Canadian company has developed a technology to make a cement substitute from industrial waste and CO2, thereby trapping this greenhouse gas in the concrete.

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Diamonds from CO2: Can greenhouse gases be permanently stored in crystalline structures? Dale Vince has developed a technology for countering environmentally destructive diamond mining. DW reporter Ahmand Kalaji asked him about it.

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This week's question for Tomorrow Today comes from Antoniete Reyes in El Salvador.

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Earth is hit by asteroids all the time. Most of them are very small. But now and again, bigger rocks crash on our planet. They can cause massive destruction. So scientists are looking for ways to defend planet Earth.

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How about making fuel out of CO2? With a little water and electricity added. Tim Böltken and his team say they've developed a synthetic fuel that makes use of the greenhouse gas carbon dioxide. The group insists it's fully carbon neutral.

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The SARS-CoV-2 virus enters the mouth, lungs and intestines – then lands in the toilet. Its trace can be followed all the way to the sewage treatment plant. There it's used not only to detect infections early, but also to track how variants spread.

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The war in Ukraine is also affecting the country's science community. Several educational institutions have been destroyed and scientists have been forced to flee. We met two biologists from Kyiv who are now pursuing their cancer research in France.

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The moon has been orbiting the Earth for billions of years. The first moon missions over fifty years ago helped reveal its secrets. Now it is once again becoming a focus of research and space travel, not least due to its raw materials.

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Engineers and researchers at Spain's Granada University have developed a smart FFP2 mask. The intelligent face covering warns wearers via their smartphone app when CO2 concentrations are getting too high.

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The viewer's question this week comes from Yessenia Quinones from Puerto Rico.

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This week's question comes from Nahin Medina in Paraguay, who wants to know why sound is slower than light.

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Our viewer's question this week comes from Arnulfo Quintanilla from El Salvador.

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"Space mathematics is more challenging than the mathematics on the ground," says German astronaut Matthias Maurer, currently living on board the International Space Station. Why is that? How does weightlessness affect our body?

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The James Webb Space Telescope takes us deeper into space than ever before. It also brings astronomer Knud Jahnke much closer to black holes. But how do they form? How do they affect galaxies and why do they exert such a pull on their surroundings?

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How does space-based internet access work? Is it possible to provide satellite internet coverage for even the remotest regions on Earth? How fast is it and what are the downsides — and is it any good for the environment?

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This week's Tomorrow Today viewer question comes from C. Romero Vargas in San José, Costa Rica.

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This time the viewer question comes from David Burgos from Colombia.

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This week's question for Tomorrow Today comes from Fred Nabbimba in Kampala, Uganda.

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This week's viewer question is from Peter Mulima in Kampala, Uganda.

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Could the ice at the poles cool down the Earth's molten core enough to extinguish its volcanism? This week’s question comes from Samuel Ouma from Uganda.

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Dominika Wylezalek will be among the first to conduct research using the new James Webb Space Telescope. The focus for the Heidelberg University astrophysicist is on supermassive black holes embedded at the center of galaxies.

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This week's viewer question is from Terry Barker in the USA: Why don't clouds fall from the sky?

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Japanese scientists are combining digital technologies with artistic acumen to clone art. The aim is to replicate precious works of art that have been stolen or destroyed. Can these clones help to preserve cultural heritage?

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The James Webb Space Telescope promises new insights into the early stage of the universe, immediately after the Big Bang 13.8 billion years ago. It's job is to deliver images of stars far older than our own solar system.

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The viewer's question this week comes from Lee Orno in Nairobi, Kenya.

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Today’s question comes from Maria Constanya Estupiñán Zabala from Columbia.

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This week's viewer question comes from Mohamed Ehab Ragab in Egypt.

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DW's viewers question this week comes from Román Gomez in Mexico.

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This week's DW viewer question comes from Armando Martinez in Mexico.

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German astronaut Matthias Maurer has been preparing for his maiden flight to the International Space Station. He’ll spend six months on the ISS, orbiting the Earth at an altitude of 400 kilometers. We talked to him about the jobs he’ll be doing.

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Just ask! This week's Tomorrow Today viewer question comes from Mexico: Is the vacuum in space completely empty?

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Just ask! This week's Tomorrow Today viewer question comes from Esomchukwu Ezeamaku in Nigeria. He wants to know: can our DNA change?

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Why is it harder to bring people back from space than to fly them up there? This week’s viewer question is from Olumide Bamgbose in Nigeria.

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Just ask! This week‘s Tomorrow Today viewer question comes from Eli Yecheskel: Is time unidimensional?

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Senegalese academic Cheikh Anta Diop was an anthropologist, historian, physicist, and linguist. His groundbreaking work included rewriting Africa's history from an Afrocentric point of view without prejudice.

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This week we answer our viewer's question: Why do people have different skin colors?

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Cervical cancer is one of the most common cancers in women. Simple screening tests can help diagnose it at an early and treatable stage. In Ivory Coast, pathologist Mélanie Usher has made it her mission to reduce cervical cancer rates.

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Just ask! This week’s viewer question comes from Philip Keteku in Accra, Ghana.

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In 2011 the Juno space probe was launched to explore Jupiter. The data sent back has delivered a range of revelations – like the build up of a new, giant cyclone-storm there. And that the solar system’s biggest planet almost became a second sun once.

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It takes 8,000 liters of water to make one pair of jeans – an astronomical amount. What’s the water footprint of other common products? Measurements are based on the concept of "virtual water."

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Sound videos are all the rage right now. ASMR videos get millions of clicks on YouTube. Fans swear by their calming effect. One study by the University of Sheffield suggests that the 'brain tingles' from ASMR videos have physiological benefits.  

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What do water fleas reveal about how well a body of water is doing? A scientist from Indonesia is studying the tiny creatures in Lake Constance and observing how they adapt to their environment – meaning also to human influence.

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The Tomorrow Today question of the week comes from Brown Mbadiwe from Owerri, Nigeria.

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One million plastic bottles are sold worldwide every minute. The vast majority of them are not recycled. So what happens to the packaging after we’ve finished a drink? And how can we change that?