Lagrange Point

Lagrange Point

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Lagrange Point episodes

  • Episode 516 - How plants handle too much or too little light

    Too much or too little light can cause serious problems for plants. Light levels are not simply a feast or famine equation when it comes to photosynthesis. Plants must carefully manage the amount of light coming in to ensure smooth photosynthesis. The way genes in leaves responding to rapidly changing light conditions help them make the most of photosynthesis.  Your eyes have to rapidly respond to opening curtains in a dark room, just like leaves of a plant. What about plants that have abandoned the need for light at all? Can a plant survive or thrive without light or photosynthesis? 

    1. Thekla von Bismarck, Kübra Korkmaz, Jeremy Ruß, Kira Skurk, Elias Kaiser, Viviana Correa Galvis, Jeffrey A. Cruz, Deserah D. Strand, Karin Köhl, Jürgen Eirich, Iris Finkemeier, Peter Jahns, David M. Kramer, Ute Armbruster. Light acclimation interacts with thylakoid ion transport to govern the dynamics of photosynthesis in Arabidopsis. New Phytologist, 2022; 237 (1): 160 DOI: 10.1111/nph.18534
  • Kenji Suetsugu, Shun K. Hirota, Tian-Chuan Hsu, Shuichi Kurogi, Akio Imamura, Yoshihisa Suyama. Monotropastrum kirishimense (Ericaceae), a new mycoheterotrophic plant from Japan based on multifaceted evidence. Journal of Plant Research, 2022; DOI: 10.1007/s10265-022-01422-8
  • 19 min
  • Episode 515 - Do you really need oxygen for oxidation

    How does chemistry change when you travel to another planet? When it comes to scientific experiments often we can be hampered by our own experience. Just because something is abundant on earth does not meant that it's a universal constant.  Out of this world chemistry is hard to get your head around and it requires thinking outside the box. Is it possible to have oxidize minerals without oxygen?

    1. Kaushik Mitra, Eleanor L. Moreland, Greg J. Ledingham, Jeffrey G. Catalano. Formation of manganese oxides on early Mars due to active halogen cycling. Nature Geoscience, 2022; DOI: 10.1038/s41561-022-01094-y
    14 min
  • Episode 514 - Pushing water to the limits on earth and in space

    What happens when you push water to the limits on earth and in Space? Water has really weird properties especially when it gets really cold. How can we understand and model the behaviour when it moves to fast for us to capture? How do droplets form and why do you need the ISS to study it? What can microgravity tell us about the way droplets form?

    1. Thomas E. Gartner, Pablo M. Piaggi, Roberto Car, Athanassios Z. Panagiotopoulos, Pablo G. Debenedetti. Liquid-Liquid Transition in Water from First Principles. Physical Review Letters, 2022; 129 (25) DOI: 10.1103/PhysRevLett.129.255702
  • J. McCraney, J. Ludwicki, J. Bostwick, S. Daniel, P. Steen. Coalescence-induced droplet spreading: Experiments aboard the International Space Station. Physics of Fluids, 2022; 34 (12): 122110 DOI: 10.1063/5.0125279
  • 12 min
  • Episode 513 - An eerie glow in the Solar System

    How do you measure the solar system and the universe whilst being inside of it? Too much light is a problem for astronomers and our solar system has it's own glow. If you take away all known light sources form the solar system, there is still a faint glow. We know about background radiation, but what about the solar systems background lighting? How can you test the curvature of the universe? To answer universal scale questions you need to start small. Really small. Using Bose Einstein condensates and getting really cold we can simulate curved universes in a molecule scale. 

    1. Timothy Carleton, Rogier A. Windhorst, Rosalia O’Brien, Seth H. Cohen, Delondrae Carter, Rolf Jansen, Scott Tompkins, Richard G. Arendt, Sarah Caddy, Norman Grogin, Scott J. Kenyon, Anton Koekemoer, John MacKenty, Stefano Casertano, Luke J. M. Davies, Simon P. Driver, Eli Dwek, Alexander Kashlinsky, Nathan Miles, Nor Pirzkal, Aaron Robotham, Russell Ryan, Haley Abate, Hanga Andras-Letanovszky, Jessica Berkheimer, Zak Goisman, Daniel Henningsen, Darby Kramer, Ci’mone Rogers, Andi Swirbul. SKYSURF: Constraints on Zodiacal Light and Extragalactic Background Light through Panchromatic HST All-sky Surface-brightness Measurements: II. First Limits on Diffuse Light at 1.25, 1.4, and 1.6 μm. The Astronomical Journal, 2022; 164 (5): 170 DOI: 10.3847/1538-3881/ac8d02
  • Celia Viermann, Marius Sparn, Nikolas Liebster, Maurus Hans, Elinor Kath, Álvaro Parra-López, Mireia Tolosa-Simeón, Natalia Sánchez-Kuntz, Tobias Haas, Helmut Strobel, Stefan Floerchinger, Markus K. Oberthaler. Quantum field simulator for dynamics in curved spacetime. Nature, 2022; 611 (7935): 260 DOI: 10.1038/s41586-022-05313-9
  • 17 min
  • Episode 512 - Analyzing aftershocks and predicting earthquakes

    Forecasting an earthquake is serious business, but it's not like the weather. Why are earthquakes so hard to predict? Knowing when an earthquake will occur is hard enough, but what about predicting aftershocks? Aftershocks can create huge stress and compound damage after a quake so what can be done to predict them? Building huge scale models out of granite can help researchers better understand aftershocks. Sliding slabs of granite, plastic blocks and quartz dust help researchers understand aftershocks. When an earthquake combines with another disaster, the compound effect is devastating. How good are modern risk assessment tools at managing compound disasters? 

    1. Sara Beth L. Cebry, Chun-Yu Ke, Srisharan Shreedharan, Chris Marone, David S. Kammer, Gregory C. McLaskey. Creep fronts and complexity in laboratory earthquake sequences illuminate delayed earthquake triggering. Nature Communications, 2022; 13 (1) DOI: 10.1038/s41467-022-34397-0
  • Misato Uehara, Kuei-Hsien Liao, Yuki Arai, Yuta Masakane. Could the magnitude of the 3/11 disaster have been reduced by ecological planning? A retrospective multi-hazard risk assessment through map overlay. Landscape and Urban Planning, 2022; 227: 104541 DOI: 10.1016/j.landurbplan.2022.104541
  • 19 min
  • Episode 511 - How the earliest brains developed and handle touch

    Peering into the history of brains with some amazing tiny fossils. How did the earliest brains develop? Is a head just an extension of a segmented body or something else entirely? How did the first brains and nervous systems evolve in arthropods. How does your body process the sense of touch? The faintest sensations of touch are handled by specialist cells in your spinal cord. How do your  brain stem and spinal cord help your body process the senses?

    1. Nicholas J. Strausfeld, Xianguang Hou, Marcel E. Sayre, Frank Hirth. The lower Cambrian lobopodian Cardiodictyon resolves the origin of euarthropod brains. Science, 2022; 378 (6622): 905 DOI: 10.1126/science.abn6264
  • Turecek, J., Lehnert, B.P. & Ginty, D.D. The encoding of touch by somatotopically aligned dorsal column subdivisions. Nature, 2022 DOI: 10.1038/s41586-022-05470-x
  • Anda M. Chirila, Genelle Rankin, Shih-Yi Tseng, Alan J. Emanuel, Carmine L. Chavez-Martinez, Dawei Zhang, Christopher D. Harvey, David D. Ginty. Mechanoreceptor signal convergence and transformation in the dorsal horn flexibly shape a diversity of outputs to the brain. Cell, 2022; 185 (24): 4541 DOI: 10.1016/j.cell.2022.10.012
  • 17 min
  • Episode 510 - Fungi spreading across the planet and wiping out toxic soils

    Fungi have an amazing ability to spread across continents but stay linked as a family lineage. Fungi can adapt to specific geographic niches in the same way as grapes. Different families of highly specialized mushrooms grow side by side across continents. How can fungi protect the plants it's attached to? Fungi often get a bad rap in farming, but they can be used to detoxify soils. Removing mercury and boosting crops; is there anything fungi can't do?

    1. Keaton Tremble, J. I. Hoffman, Bryn T. M. Dentinger. Contrasting continental patterns of adaptive population divergence in the holarctic ectomycorrhizal fungus Boletus edulis. New Phytologist, 2022; DOI: 10.1111/nph.18521
  • Congcong Wu, Dan Tang, Jin Dai, Xingyuan Tang, Yuting Bao, Jiali Ning, Qing Zhen, Hui Song, Raymond J. St. Leger, Weiguo Fang. Bioremediation of mercury-polluted soil and water by the plant symbiotic fungus Metarhizium robertsii. Proceedings of the National Academy of Sciences, 2022; 119 (47) DOI: 10.1073/pnas.2214513119
  • 18 min
  • Episode 509 - What connects spicy food, proteins and your gut

    How is your gut connected to the rest of your body? How does your nervous system connect to your gut? How can you sense pain inside of your gut? The bacteria that live inside your gut can call for help when under pressure. With the wrong balance of bacteria or signalling proteins our guts can be more prone for inflammation and damage. How can bad bacteria escape from the gut and evade detection? What enables some bacteria to sneak out of the intestine and wreck havoc.

    1. Wen Zhang, Mengze Lyu, Nicholas J. Bessman, Zili Xie, Mohammad Arifuzzaman, Hiroshi Yano, Christopher N. Parkhurst, Coco Chu, Lei Zhou, Gregory G. Putzel, Ting-Ting Li, Wen-Bing Jin, Jordan Zhou, Hongzhen Hu, Amy M. Tsou, Chun-Jun Guo, David Artis. Gut-innervating nociceptors regulate the intestinal microbiota to promote tissue protection. Cell, 2022; DOI: 10.1016/j.cell.2022.09.008
  • Yusibeska Ramos, Stephanie Sansone, Sung-Min Hwang, Tito A. Sandoval, Mengmeng Zhu, Guoan Zhang, Juan R. Cubillos-Ruiz, Diana K. Morales. Remodeling of the Enterococcal Cell Envelope during Surface Penetration Promotes Intrinsic Resistance to Stress. mBio, 2022; DOI: 10.1128/mbio.02294-22
  • 18 min
  • Episode 508 - Finding your way as a fish along rivers and into the deep

    How can fish keep themselves stable in a fast flowing river? What's the best way to stay on track as a fish? To swim straight ahead fish often end up staring downwards. The riverbed is way easier to track than a fast flowing current. How did fish manage to make their way into the deepest parts of the ocean? What climatic factors drove fish to explore deeper and deeper? What changed in Earth's history to encourage fish to thrive in the deepest parts of oceans?

    1. Emma Alexander, Lanya T. Cai, Sabrina Fuchs, Tim C. Hladnik, Yue Zhang, Venkatesh Subramanian, Nicholas C. Guilbeault, Chinnian Vijayakumar, Muthukumarasamy Arunachalam, Scott A. Juntti, Tod R. Thiele, Aristides B. Arrenberg, Emily A. Cooper. Optic flow in the natural habitats of zebrafish supports spatial biases in visual self-motion estimation. Current Biology, 2022; DOI: 10.1016/j.cub.2022.10.009
  • Elizabeth Christina Miller, Christopher M. Martinez, Sarah T. Friedman, Peter C. Wainwright, Samantha A. Price, Luke Tornabene. Alternating regimes of shallow and deep-sea diversification explain a species-richness paradox in marine fishes. Proceedings of the National Academy of Sciences, 2022; 119 (43) DOI: 10.1073/pnas.2123544119
  • 18 min
  • Episode 507 - Peering beneath Mars’ surface


    How does a single sensor help change your outlook on a planet? A single small seismometer on Mars can help understand Mars' past, present and future. What do an ultrasound and Mars have in common? Both can use a single sensor to peer deep inside. Listening to the echoes of marsquakes helps researchers understand what's in Mars' core. Modelling the inside of Mars' core helps researchers understand its past and future. Mars is often thought to be volcanically dead, but there are signs of some activity. A cluster of marsquakes can help researchers find evidence of vulcanism on Mars.

    1. Sheng Wang, Hrvoje Tkalčić. Scanning for planetary cores with single-receiver intersource correlations. Nature Astronomy, 2022; DOI: 10.1038/s41550-022-01796-8
  • Simon C. Stähler, Anna Mittelholz, Cleément Perrin, Taichi Kawamura, Doyeon Kim, Martin Knapmeyer, Géraldine Zenhäusern, John Clinton, Domenico Giardini, Philippe Lognonné, W. Bruce Banerdt. Tectonics of Cerberus Fossae unveiled by marsquakes. Nature Astronomy, 2022; DOI: 10.1038/s41550-022-01803-y
  • 17 min

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A fun take on the latest science news with enough data to sink your teeth into. Lagrange Point goes beyond the glossy summary and gets in depth with the research from across the world.