During the return journey of an Antarctic expedition in the Bellingshausen Sea geoscientist Johann Klages threw a message in a bottle into the water. He has now received an email from Tasmania: Toby Ray found the bottle on the west coast of Tasmania - it has travelled around two-thirds of Antarctica

Brilliant to see this paper rdcu.be/eUWMI by @NEGIS_Durham team & led by @louisecallard.bsky.social Work offshore with partners @awi.de revealing how ocean warming triggered ice shelf collapse @geogdurham.bsky.social @ncl-geography.bsky.social

Our icebreaker Polarstern sets off today from Namibia toward Antarctica. The research expedition to the Antarctic Weddell Sea will conduct long-term studies of Antarctic biodiversity. www.awi.de/en/about-us/... Photo: Tim Kalvelage

AWI researchers are studying whale songs with the help of AI. The result: bowhead whales appear to reproduce under the sea ice northwest of Spitsbergen, while using the open water in the eastern Fram Strait as a migration route. 🐋 Photo: Ocean Acoustics Group - AWI OZA

🎧 In the latest episode of the fabulous Plastisphere podcast, I had the pleasure and honour to chat with @kristiansyberg.bsky.social and @anjakrieger.bsky.social about the 🐘 in the room: the need to reduce #plastic production! 🔽 @awi.de soundcloud.com/plastisphere...

Freshly out at @natcomms.nature.com ! Our @univie.ac.at @awi.de @viennabiocenter.bsky.social @ercgrantees.bsky.social research into neurogenic plasticity of adult worm brains, and similarities in stem cells supporting growth of camera-type eyes. www.nature.com/articles/s41... [1/7]

🪸Good morning from @awi.de HAUSGARTEN observatory in the #Arctic #DeepSea. This photo taken by our Ocean Floor Observation Bathymetry System (~2500 m) shows sponges (Caulophacus arcticus, Cladorhiza gelida) with a comatulid, anemones, soft corals (Gersemia fruticosa) & shrimp (Bythocaris) on them!

The Beyond EPICA project begins the fifth and final drilling campaign in Antarctica. AWI researchers are part of the international research team that will drill into the bedrock beneath the Antarctic ice sheet – at an altitude of 3,200 meters above sea level and temperatures around -35°C.

AWI biologist Simeon Lisovski is currently travelling to the Danger Islands in Antarctica with the Team Malizia sailing crew. There, he will study a colony of over 750,000 Adélie penguins. 🐧🇦🇶

Looking back on yesterday's wonderful #PolarPrideDay at our AWIPEV station in the Arctic on Spitsbergen. 🐻‍❄️🏳️‍🌈 #PolarPride2025 🎥Wenceslas Marie-Sainte

Join today’s sessions at the German Climate Pavilion at COP30 with Josie Antonucci Di Carvalho: 15:30 UTC+1 Nature Based Solutions and Beyond german-climate-pavilion.de?pgm=35&nav=1... 20:45 UTC+1 Science Policy Interfaces for Biodiversity and Climate german-climate-pavilion.de?pgm=35&nav=1...

AWI scientists around the world took part in today's global climate strike. They included those at the AWIPEV station in the Arctic, expedition participants aboard the Polarstern and employees at Neumayer Station III in Antarctica. 🐻‍❄️🐧🌡 📸 L.Weis, A.Herbaut, A.Seidenstuecker.

Join today’s Permafrost Day at the ICCI Cryosphere Pavilion at COP30 with #AWI researchers Hugues Lantuit and Fabian Seemann. All sessions stream live on YouTube starting at 19:00 GMT/UTC+1. Watch here: www.youtube.com/@iccinet/vid...

Former AWI director and marine biologist Antje Boetius was awarded a place in the prestigious Order Pour le Mérite for her contributions to ocean research. Boetius led the AWI from 2017 to 2025, after which she became president of the Monterey Bay Aquarium Research Institute. 💐 📷 E. Horvath

Our research vessel Polarstern will set sail on a new expedition at the end of the week: an international group of young scientists will immerse themselves in the fascinating world of marine research. @pogo-ocean.bsky.social 📸 J.Lemburg

Our research vessel Polarstern is back in Bremerhaven after a long journey. ⚓️❤️ During the expedition, researchers took measurements in the seawater north of Greenland. Initial results show that there is a current band that transports warm Atlantic water from the Arctic Ocean southward. 🌊 📸Nicolaus

AWI climate researcher Markus Rex receives the NOMIS Award 2025. 🏆👏 The award recognizes his leadership of the MOSAiC expedition, in which scientists from 20 countries researched the interaction between ice, ocean, atmosphere, and ecosystem in the Arctic. Photo: NOMIS Foundation / David Biedert

New #AWI study shows how sustainable management of #krill in the Southern Ocean can work. The concept for managing krill stocks involves close cooperation with fisheries. #Antarctica #CCAMLR www.awi.de/en/about-us/... Photo: Carsten Pape

A new review study shows the invisible transport pathways for #iron through #hydrothermal plumes. More on Iron’s Irony here ➡️ www.marum.de/en/Iron-sIro... @icbm-uol.bsky.social #ConstructorUniversity @geomarkiel.bsky.social @awi.de @marumunibremen.bsky.social

🐧 Is #Antarctica trying to talk to us? As warming temperatures chip away at the continent’s ice shelves, #WHOI scientists are listening for signs of unstable ice using acoustic data collected by the @awi.de 🔊 Listen in with Oceanus: go.whoi.edu/polarstethoscope

AWI researchers have mapped 19,000 driftwood in Alaska and northwestern Canada for the first time. The data will help to better understand coastal processes, carbon storage and environmental changes such as storm surges and erosion. www.awi.de/en/about-us/... Photo: Carl Stadie

The heart of the new Polarstern ❤️🚢 Together with our shipyard TKMS, we have reached a milestone in the construction of the new Polarstern: the new propulsion unit for the icebreaker has been finalized and the corresponding contracts have been signed. www.awi.de/en/about-us/...

Can you spot the Polarstern amid the ice floes of the Arctic? 🧊A satellite image shows, that we are just a pixel amidst ice floes (light grey) and open water (dark). Polarstern appears as a bright spot in the image because it reflects electromagnetic radiation more strongly than its surroundings.

Unique concept for observing Arctic sea ice successfully implemented: AWI scientists were able to study different types of sea ice in parallel during the Polarstern expedition “CONTRASTS.” 🧊 www.awi.de/en/about-us/... Photo: Evgenii Salganik

Excited to share that senior postdoc Sören Häfker @awi.de just secured one of the highly competitive @erc.europa.eu ‬ @ercgrantees.bsky.social #ERCStG grants to pioneer work decoding the molecular clockwork driving rhythmicity of krill in the #marine #foodweb! More on BICLOPS here: bit.ly/4lYpBq0

Johann Klages gave a plenary talk on Antarctic research at #ICP15 in Bangalore, India. A once-in-a-lifetime honor for groundbreaking insights. AWI colleagues from Marine Geology and Marine Biogeochemistry also presented on their diverse projects.👏 Photos: personal

Lukas Weis, who is spending the winter at Neumayer Station III in Antarctica, explains in the AtkaXpress blog how he takes the most beautiful photos of the polar night. #AureliaBorealis blogs.helmholtz.de/atkaxpress/e...

Hi! I’m ARIEL, an L-band microwave radiometer 📡, and this is my little buddy Sebastian (the pulka 🛷). Together, we traveled across 3 Arctic ice stations ❄️ to uncover the invisible (aka microwave) secrets of ever-changing summer sea ice and its thickness on the @awi.de CONTRASTS #expedition 🧊.

Can the color of melt ponds reveal the sea-ice thickness below? 🧊 And can we measure this from #space? 🛰️ On the @awi.de CONTRASTS #expedition, we’re testing this with a 200+ band hyperspectral camera and co-located ice thickness measurements for a large variety of #Arctic ponds.

Our icebreaker Polarstern is currently in the Arctic, where it has met up with our polar aircraft Polar 6 for the second time. The joint measurements enable researchers to place their data in an even broader context.🧊 More information in the Polarstern app: follow-polarstern.awi.de/blog/21-08-2...

A very successful Perma-X campaign is ending now and both the Polar-5 and the team left Inuvik. We are looking forward to analyze a mountain of >30 TB of new data collected to better understand how fast #permafrost thaws and subsides, coasts erode, and lakes and vegetation change. @awi.de

@scientistscoa.bsky.social invites you to a press conference: ⏰ Tuesday 12/08/25, 15.30 CEST 📍 INC Press Room XXVII, Building E & online Seating will be prioritized for media & delegations. Media can register to join virtually & submit questions: lnkd.in/eW2Mnanz 💻 Live broadcast: lnkd.in/ed99he3j

🎢 So glad, to be in this #INC5.2 roller coaster journey together again: Annika Jahnke, @ufz.de and I, @awi.de ( @helmholtz.de) accompanying the German delegation and @scientistscoa.bsky.social. Have we reached a breaking point in the negotiations for a global #PlasticsTreaty?! 🌎 ⚕️ 🌡️ 🐙

Grateful to civil society who puts itself out in a powerful silent action as delegates enter the stock-taking plenary highlighting the urgent need for an ambitious #PlasticsTreaty for human & planetary health & climate including provisions on #plastic chemicals and production levels. @awi.de

AWI Vice Director Dr. Uwe Nixdorf, has been awarded with the "Council of Managers of National Antarctic Programs" (COMNAP) Medal. 🏆🎉 This international honor recognizes outstanding contributions to the promotion and support of #Antarctic research. Congratulations!

The second part of the 5th round of negotiations for a global #PlasticsTreaty (#INC5.2) has started! All hands on deck, let’s do this! May ambition rule: for human and planetary health and our climate ! 💪🌏🐟 #plastic @awi.de

🧊✈️ On Sunday, Polar 6 launched this year's IceBird summer campaign by flying from Longyearbyen to Station Nord, a Danish military base in Greenland. The mission is to track changes to the sea ice and to support the CONTRASTS expedition aboard the Polarstern research vessel.

Our team member Dmitry is onboard @awi.de Polarstern on the #CONTRASTS expedition in the #Arctic Ocean. Part of the work is to deploy a number of autonomous systems to track the movement of the #seaice and how it is melting. Data will be made accessible on the @meereisportal.bsky.social data portal

The new Emmy Noether Group, 'Artemics', at the AWI is investigating how waves stir up the Arctic Ocean. Using advanced climate models, the team aims to investigate how waves that form inside the ocean affect the Arctic sea ice. www.awi.de/en/about-us/... Photo: S. Hendricks

What is life like in the darkness of the polar night? The overwintering team at #Neumayer Station III in #Antarctica share their experiences on the #AtkaXpress blog. blogs.helmholtz.de/atkaxpress/e... Photo: Lukas Weis

AWI scientists examine 1.2 million-year-old ice: An international research team is currently analyzing the oldest ice core in the world. In January, the research team brought the ice core back from Antarctica. 🧊 Photo: Kerstin Rolfes

Live view from RV Polarstern 🌊 video.panomax.com/cams/10085/v... data.meereisportal.de/relaunch/con...

Happy to contribute #eDNA sequences from our #Arctic FRAM Observatory to GRUMP, a microbial database covering the world ocean 🌊 many thanks @jedfuhrman.bsky.social & @jcmcnch.bsky.social for the invitation to join! @awi.de @mpimarinemicrobio.bsky.social @chrbienhold.bsky.social

Today, the Polarstern sets off for the Arctic: From Tromsø in Norway, our research icebreaker sets off on the "Contrasts" expedition. Over the next two months, the international research team on board wants to investigate why the sea ice is melting and what consequences this has.🧊 Photo: F.Mehrtens

Excited to see first video projects with @awi.de published! Here you can see simulated past extreme weather events in different climate scenarios to better understand the impact of climate change. More soon! @ecmwf.int @climatenews.bsky.social @insideclimatenews.org

The overwintering at the Franco-German research station #AWIPEV in Ny-Ålesund, Svalbard, also celebrated midsummer last weekend! 🥳 Photo: Esther Horvath

New paper incl. data from our @awi.de #HAUSGARTEN observatory indicate 'Decadal change in deep-ocean dissolved 🧪oxygen in the North #Atlantic Ocean and North #Pacific Ocean'. Levels deceased in the #Arctic, too, but this was't (yet) statistically significant. www.sciencedirect.com/science/arti...

The call for our 2026 Postdoc Cohort is now open. We offer 4 full-time positions. Apply until August 24th. hifmb.de/jobs Please spread the word. #postdoc #jobsinscience #marinebiodiversity #antarctica @awi.de @hillebr1.bsky.social @ibaums.bsky.social @thilogross.bsky.social @merenbey.bsky.social 🦑

No sun. No soil. Still: over a ton of veggies in Antarctica. @dlr-en.bsky.social & @awi.de show how food production could work in extreme environments. 🔗 Find out how: t1p.de/l9799 #Helmholtz30

Krill fishing in the Antarctic: overlaps with consequences 🐋🌊 New AWI study shows: Acoustic data reveal when and where fishing vessels compete with whales and penguins for krill in the Southern Ocean – and what this entails for the ecosystem www.awi.de/en/about-us/... Photos: S. Menze