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Aerial view of Heimdal Glacier and snow-covered terrain in eastern Greenland, illustrative photograph.Climate · Nov 6, 2026In Greenland, a lake beneath the ice delays the release of meltwaterBeneath Flade Isblink, an invisible reservoir fills in summer and empties mainly in autumn. Satellites reveal why the date of melting alone is not enough to predict when water will arrive downstream.The Hubble Space Telescope above Earth, photographed from Atlantis in May 2009.Space · Nov 6, 2026Hubble: why NASA is considering a new servicing missionNASA is consulting companies on extending Hubble’s mission or preparing for its end. Orbit, instruments, complementarity with Webb: what is at stake.Wooded ridges of the Cévennes and a winding road, viewed from Mont Aigoual.Space · Nov 4, 2026Stargazing in the Cévennes: what a protected sky really changesThe Dark Sky Reserve label goes hand in hand with work on lighting. To enjoy the night, the choice of location, target and approach matters too—long before you buy a telescope.The Vera C. Rubin Observatory in Chile, beneath an orange sky at sunset.Space · Nov 2, 20262026 ED138: what the candidate for dwarf-planet status really revealsSpotted in Rubin data, this distant body also appears in TESS archives. Its orbit is becoming clearer, but its size and shape remain to be established.Smoke over Borneo seen by satellite, archive image from September 2019.Nature and environment · Nov 1, 2026Fires in Indonesia: understanding the human toll of the smokeCREA estimates that smoke was linked to 3 560 deaths in September 2026. Behind this figure, different methods and environments shed light on the crisis.Artist’s impression of TOI-561 b and its atmosphere above an ocean of magma; illustration published in 2025.Space · Nov 1, 2026TOI-561 b: how Webb is investigating the clouds of a lava planetA study of infrared variations from TOI-561 b favours a highly reflective atmosphere. Here is what Webb is actually measuring, what the models explain and what remains to be verified.The Aletsch Glacier and its neighbours in the Swiss Alps, seen by Landsat 8 on 6 August 2024.Climate · Nov 1, 2026Retreating glaciers: what a map cannot tell a walkerMaps record the retreat of glaciers, but do not describe conditions on the day. From measuring climate change to unstable terrain and route planning, here are the key distinctions to bear in mind.Water jet from the degassing system at Lake Nyos, between rocky shores, with a floating platform.Basic science · Nov 1, 2026Lake Nyos: how dissolved CO₂ caused the 1986 disasterIn Cameroon, Lake Nyos released a deadly cloud of CO₂ in August 1986. Understanding how the gas was stored at depth also explains how degassing systems work.Entrance to Sainte-Anne Hospital in Paris, archive photograph from December 2012.Health · Oct 28, 2026Treatment-resistant depression: where do esketamine and psilocybin stand?A medicine already authorised in Europe, and research protocols still to be assessed: these two avenues do not offer the same points of reference. Benefits, risks and care framework must be considered together.Starship ascending, with a long, luminous plume against a blue sky.Space · Oct 27, 2026Starship: why orbital refuelling remains a decisive stepMoving liquid within a spacecraft and refuelling another vehicle are two different steps. NASA documents shed light on what separates them.The International Space Station photographed from Atlantis in May 2010.Space · Oct 27, 2026After the ISS: Europe prepares for stays in orbit, with no successor yet guaranteedThe agreement between ESA and Vast opens up a possibility for European astronauts. But preparing missions on commercial stations guarantees neither their timetable nor an uninterrupted transition.Official portrait of ESA astronaut Sophie Adenot at NASA’s Johnson Space Center in 2025.Space · Oct 26, 2026Why Star Wars spacecraft don’t look like real rocketsStaged rockets, the heat of atmospheric re-entry, life on board and the speed of light: what physics really allows spacecraft to do.
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