Webb Found Brown Dwarfs Only Twice Jupiter’s Mass. How Small Can a Star-Born Object Be?
Webb found brown dwarfs as light as twice Jupiter’s mass in IC 348. One may have a disk, while an unexplained molecule hints at unfamiliar atmospheres.
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Webb found brown dwarfs as light as twice Jupiter’s mass in IC 348. One may have a disk, while an unexplained molecule hints at unfamiliar atmospheres.

An amateur spotted a circular depression in Quebec on satellite maps. Fieldwork found shatter cones and impact-melt rock inside the 25-kilometre Uhackatik structure.
Archaeologists rarely identify a settlement from one object. They combine buildings, hearths, tools, food remains, activity areas, and patterns of rebuilding to understand a site.
Nearly 1,000 bones and teeth from three Granada caves show that Neolithic cannibalism was not one practice or one event. The dates and traces point to different stories.
Roman’s antenna, sunshade and visor are deployed. Here is why the telescope’s three-month commissioning journey matters before its first images arrive.
University of Bern simulations and ESA Hera observations point to one non-destructive asteroid impact as the source of Deimos’ southern depression and dusty surface.
Two NASA-funded studies trace how the Sun’s changing galactic surroundings may have altered Earth’s climate and helped warm the young planet.
NASA’s Pandora satellite has started science observations of at least 20 exoplanets, measuring their host stars so Webb’s atmospheric results can be read more reliably.
Twelve entrances opened onto the horizon at Chleby. The excavators link their directions to the Sun and Moon, raising questions about how people gathered there.
A person sits on a leopard in a sculpture found inside a small stone building. What did this unusual pairing mean to the people of Karahantepe?
A marble inscription found in its original position at Hadrian’s Villa refers to a lightning strike attributed to Summanus—and the Roman ritual of making the place sacred.
A new Nature Astronomy study uses 114 fast radio bursts to trace cosmic gas and test how stellar and black-hole feedback reshapes matter around galaxies.
Tiny minerals inside one of the most pristine meteorites ever found still carry a record of magnetism from the solar system’s first 200,000 years.
The universe is expanding, yet galaxies still merge. The answer lies in gravity, local motion, and the difference between cosmic expansion and a galaxy’s neighbourhood.
Gravity can bend and magnify light from a distant galaxy. Here is how gravitational lensing works, what Einstein rings are, and what astronomers learn from them.
A Charnia fossil from Norway preserves rare ridges along its branches. Researchers trace how an underwater sediment flow may have carried and buried it.
MOONS has made its first observations at the Very Large Telescope. Its thousand optical fibres could help reveal the history hidden in stars and galaxies.
DNA from ancient grape seeds connects Iberian vineyards to eastern Mediterranean plants—and reveals how growers preserved lineages across millennia.
A new lunar model can help map craters and promising conditions for polar ice. Its technical documentation reveals what those predictions mean—and how scientists can test them.
A finished stone vessel hides the work that made it. Unfinished objects, drill cores, a tomb painting and traces of abrasive bring the ancient workshop back into view.
Artifact InSPECtor invites volunteers to examine Euclid observations and improve the tools that will help astronomers read distant galaxies. Here is what the unusual streaks and blobs mean.
Isotopes reveal millet consumption in Poland around 1590 BCE—and show how some people adopted the new crop during their own lifetimes.
Playable shell horns and sound-filtering stone passages offer a way to investigate what visitors could have heard at Chavín de Huántar.
A new ESA model can estimate where fragments from a small incoming asteroid may land before the object reaches the atmosphere. The system was built for the short-warning events that astronomers call imminent impactors.