Andradite in the NWA 8171 Martian breccia is secure, but its tiny host clast could record Martian magma, alteration, metamorphism or material delivered by an impactor.
Wide, steep flanks at Ganis, Dali and Devana Chasmata resemble young active-rift models, although the topography cannot yet show that extension continues today.
Juno's microwave radiometer found a steep temperature increase below every region of Io sampled during two flybys, pointing to broad heat flow or concealed young lava and vents.
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.
A New Zealand parrot nearly extinct three decades ago has staged an improbable resurrection—but the rarest bird in the world remains one bad season away from catastrophe.
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.
