Chinese Academy of Sciences @CAS__Science

🌌 We've traced the journey of high-energy cosmic particles across 42 light-years. Using joint observations from the Einstein Probe (EP) and the Large High Altitude Air Shower Observatory (LHAASO), we’ve discovered an extraordinarily long X-ray tail near a pulsar about 4,600 light-years from Earth. Stretching about 42 light-years, the tail aligns with ultrahigh-energy gamma-ray emission detected by LHAASO, providing new evidence that high-energy particles can travel through interstellar space along a preferred direction. Read more: english.cas.cn/newsroom/resea… #CAS #EinsteinProbe #LHAASO #CosmicParticles #XRayTail #HighEnergyPhysics

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🤖 What if a robot could be your lab partner? We've developed a Robotic Marine Materials Scientist Platform that can carry out experiments automatically — from material preparation to testing and characterization. The robots handle the repetitive work, while scientists focus on the big questions. 🔬 More experiments. More data. Smarter AI. 🎥 Meet the "robotic scientists" in action! Learn more: english.cas.cn/newsroom/resea… #CAS #Robotics #AI #MaterialsScience #AIForScience

🌌 We've discovered the lowest-mass double neutron star system known to date! Using FAST, we identified PSR J1856-0039, with a total mass of just 2.488 Suns and an orbital period of 2.36 hours. The system offers a rare test of general relativity, showing effects including gravitational redshift, time dilation and orbital decay caused by gravitational-wave emission. The pair is expected to merge in ~82 million years. 🔭✨ #CAS #FAST #NeutronStars #Astronomy #GeneralRelativity #GravitationalWaves

⚡ This isn't CGI. We actually triggered lightning — on purpose! A rocket trails a thin metal wire into the sky, triggering an imminent natural lightning strike a fraction of a second early and guiding it to a designated location — like a thin thread pulling lightning down from the clouds. Why do this? Natural lightning is unpredictable and fleeting. Artificial triggering allows scientists to observe lightning up close, develop detection technologies and test lightning protection. 🎬 Hit play and watch us bring lightning down from the sky! #CAS #IAP #AtmosphericScience #LightningResearch #Thunderstorm

🔭 What if AI could help run a telescope? The StarWhisper Telescope, developed by the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC), was featured among the "Selected AI Agents 2025 in Physics, Astronomy, Chemistry and Materials Science" in Stanford HAI's AI Index Report 2026. We're exploring how AI agents can go beyond data analysis to help plan and execute astronomical observations, while a digital simulation environment allows us to test observation strategies and optimize telescope operations—without using valuable observing time. 🤖🌌 #CAS #StarWhisperTelescope #AIForAstronomy #Astronomy #AIAgents #SpaceScience

✨ We've uncovered a 100-million-year-old "firefly" revealing the early evolution of insect communication. 🐞 Preserved in Burmese amber, the newly discovered firefly-like beetle Icaroramusretains unusual antennae and light-producing organs. Its antennae may have helped detect chemical signals and find mates. Its light-producing organs may have served defense functions, while possibly representing an early step toward light-based communication. This tiny insect shows that ancient firefly relatives had already evolved complex sensory systems over 100 million years ago. Read more: english.cas.cn/newsroom/resea… #CAS #Paleontology #FossilDiscovery #Evolution #AncientLife #InsectEvolution

🌌 We've observed how matter travels through the cosmic web. Using SDSS data, we found that satellite galaxy motions are linked to cosmic filaments, providing observational evidence for a two-stage process: 1/ Matter first flows into filaments. 2/ It then travels along them toward galaxy groups and clusters. Cosmic "highways" leave "tire tracks" in galaxy motions. ✨ Read more: english.cas.cn/newsroom/resea… #CosmicWeb #Astronomy #Galaxies #SpaceScience #Universe #Cosmology #GalaxyEvolution

🎓 A new chapter begins at UCAS! More than 21,000 new students from across the globe have joined the University of Chinese Academy of Sciences (UCAS) this year. 🌍 They come with different stories, dreams and questions — but share one curiosity: What's next to discover? 🔬 Meet UCAS's newest generation and hear what brought them here, what they hope to achieve, and what they're looking forward to discovering. ▶️ Check out the video and meet the new voices of UCAS! #UCAS #NewStudents #StudentLife #SchoolLife #UCAS2026 #NewBeginnings

🔬We've made the most precise measurement yet of the Λ hyperon's electric dipole moment (EDM), improving precision by about 1,000× over the 1981 result. 🌀The Λ hyperon is a short-lived subatomic particle containing a strange quark. Its EDM describes a tiny imbalance in how positive and negative charge is distributed. ⚛️Using quantum entanglement between Λ and anti-Λ hyperons, we found no significant EDM signal—but demonstrated a new way to study fleeting particles and probe new physics. Read more: english.cas.cn/newsroom/resea… #QuantumPhysics #ParticlePhysics #BESIII #QuantumEntanglement #Hyperon

🚀 We have revealed, for the first time, how powerful jets from an X-ray binary gradually narrow as they move away from the central black hole. Using high-resolution radio observations of the X-ray binary SS 433, we found that its twin jets gradually narrow in a curved, almost parabolic patterns — and, intriguingly, that the way they narrow changes over time. Read more: english.cas.cn/newsroom/resea… #CAS #BlackHole #BinarySystem #CosmicJets #Universe #SpaceScience

⛺ Day 15: Rest Day at 6,350m 📈 90% of the work complete, a lively camp atmosphere. At Qomolangma, it's not just about tasks — it's about the sentiment. #CAS #Vlog #Qomolangma #ScientificExpedition #RoofOfTheWorld #FieldResearch #ExtremeScience

🦋 We've developed a pump-free airborne sampler inspired by how some butterflies drink nectar. Our Film-rupture Actuated Capillary Enrichment (FACE) sampler uses liquid-film and its rupture to capture/transfer airborne targets —without pumps or batteries. From infectious disease detection to air pollution and agricultural monitoring, FACE could offer a simpler, more accessible way to sample the air around us. Read more: english.cas.cn/newsroom/resea… #CAS #AirSampling #Butterflies #LiquidFilm #BiomimeticTechnology #EnvironmentalMonitoring

🌌 The universe's star factory is slowing down—but it's not running out of fuel. We analyzed 2.5 million galaxies with data from FAST & DESI and discovered that fewer stars are forming not because galaxies lack neutral hydrogen, but because they are becoming less efficient at turning this gas into star-forming molecular hydrogen. ✨ A new clue to why galaxies fade over cosmic time. Read more: nature.com/articles/s4155… #CAS #FAST #DESI #StarFormation #Galaxies #Astronomy #SpaceScience #Universe

Air doesn't stop at borders. Neither should science. 🌍 At #IAC2026 in Xi'an, China, we're bringing EPICC—an open-source platform integrating emissions, weather, aerosols, clouds & atmospheric chemistry to better understand how air pollution forms, evolves & travels. Open Science. Shared Atmosphere. Shared Future. Learn more: doi.org/10.1007/s00376… #IAC2026 #EPICC #AerosolScience #AirQuality #OpenScience #InternationalCollaboration

🦗Between Water & Land We've identified a 324-million-year-old insect fossil that lived a semi-aquatic life. With paddle-like abdominal appendages, it may have moved through water while retaining features adapted for life on land. The finding suggests insects conquered land step by step—not in a single leap. 🌊🌿 Read more: english.cas.cn/newsroom/headl… #CAS #Evolution #Paleontology #Fossils #Insects #AncientLife

Imagine bringing one extinct animal back to life — who would it be? 🦖 We took to the streets to hear the wildest picks, from dinosaurs to saber-toothed tigers. What's your choice? Drop it below! 👇 #StreetVoices #ExtinctAnimals #Animals #BackToLife #POVSeries #WhatIfScience

🌊🦎 We discovered that a distant relative of dinosaurs had already adapted to life in the sea 240+ million years ago. A fossil from China's Luoping Biota reveals Austronaga, an ancient reptile with powerful front limbs, reduced hind limbs, and paddle-like feet — built for swimming. Its fossil also preserves traces of internal organs and fish scales, offering a rare glimpse into the life of this ancient ocean hunter. Evolution has no single path — even dinosaur relatives once explored life beneath the waves. #CAS #Paleontology #Evolution #Fossils #Dinosaurs #Reptile #LuopingBiota

🌌 We've identified the most powerful cosmic particle accelerator ever found. Using LHAASO, we confirmed Cygnus X-3 as the first variable PeV gamma-ray source, accelerating particles to at least 30 PeV. By observing the time variability in its gamma-ray signals, LHAASO located the accelerator within a region only about three solar radii across—the most precise localization ever achieved for such an extreme cosmic ray accelerator. Read more: english.cas.cn/newsroom/resea… #CAS #LHAASO #Astronomy #Astrophysics #CosmicRays

#BiosphereStories Meet the new member of UNESCO Biosphere Reserves in China — Daqingshan 🌏 Designated by UNESCO in 2025 📍Located in Inner Mongolia Autonomous Region, North China 📏Covers an area about 2× Shenzhen 🌾Where Northern China's ecosystems converge 🦌Key stopover on the East Asian–Australasian Flyway 🏇 Agricultural and steppe civilizations coexist #UNESCO #MAB #BiosphereReserve #ChineseAcademyOfSciences #Daqingshan #MountainForest

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