Population III stars remain inferred rather than individually confirmed. Extreme cluster lensing may give Webb the magnification needed to isolate one ancient, metal-free source.
A water-cycle simulation of aerosol-warmed Mars found tenfold vapour increases per 20 kelvin, with clouds warming nights, cooling winter days and preserving effects after shut-off.
Japan's most infamous mercury disaster left behind a permanent landfill—and an uneasy question about what happens when the cap eventually fails.
What was nearly extinct is now thriving—a twenty-three-year rescue of one of Europe's rarest cats from the brink of vanishing forever.
The measured net baryon-to-photon ratio is about 6.1 parts in ten billion. Physics can describe the required ingredients for that excess, but no confirmed mechanism made it.
Eos covers about 20 degrees of sky, but almost all its estimated 3,400 solar masses of molecular hydrogen escaped the carbon-monoxide surveys normally used to find such clouds.
Andromeda’s collective glow reaches the naked eye, but an Earth-Sun analogue there would combine a ten-billion-to-one contrast with a 1.3-microarcsecond separation.
A Besançon Galaxy Model reanalysis expands Breakthrough Listen's stellar bycatch to 6,182,364 simulated objects, while strong transmitter limits remain conditional on distance, power and duty cycle.
Solar-evolution models favour engulfment of a compact world near 5.6 Earth masses, but the result is an indirect fit to helioseismic and chemical constraints rather than a detected lost planet.
NASA and IBM's open lunar model reduced error by roughly 22 percent on an ice-prospectivity benchmark, while predicting a model-derived stability map rather than measured ice deposits.
Orbiter tracking reveals a north-south difference in Mars's mantle rigidity consistent with a 200 to 400°C thermal anomaly, while leaving the presence of partial melt unresolved.
A Chandra archive search found 84 sources visible almost only below 0.3 keV, exposing a model-dependent reservoir of extreme-ultraviolet radiation in six nearby galaxies.
Nearly five decades after launch, humanity's most distant emissary continues whispering back from the edge of the solar system, defying every expectation of how long a machine can survive in the void.
Rocket Lab has challenged NASA's Mars Telecommunications Network award to Blue Origin, five years after Blue Origin protested NASA's first crewed lunar-lander award to SpaceX.
A NASA-led model identifies cold lunar south-pole shadows where terrestrial fungi and bacteria may remain dormant for days and, in especially protected conditions, longer.
The 2,884-supernova Unite catalogue sharpens a combined-probe hint of evolving dark energy, while its preprint reports only weak Bayesian evidence and no supernova-only detection.
