Water frost only about 10 micrometres thick appears for a few cold-season morning hours across four giant Martian volcanoes. Its vast coverage may exchange approximately 150,000 tonnes of water with the atmosphere each day.
A model tested against Apollo cores predicts that long-lived radioisotopes could preserve a readable lunar record reaching 80 to 100 million years, if future missions retrieve deep samples.
Wind loading depends on air density and speed squared. In Mars's thin surface atmosphere, a 60 mph gust exerts roughly the same push as a 6-to-8 mph Earth breeze, while dust remains a serious hazard to power and machinery.
One 248 keV recoil survived LUX-ZEPLIN’s background checks. The global result is 2.6 sigma: interesting enough to pursue, nowhere near enough to call dark matter.
S301 turned up as a smudge in a reconstructed image in 2023 and was then found again in archived pointings from 2021 and 2017. No spin has been measured. The decade-long timeline comes from a simulated dataset running to 2035, one assuming a radial velocity this star has never yielded and an astrometric precision the authors describe as the expected final performance of their upgraded instrument.
A new reconstruction of the November 2025 G4 storm finds mid-latitude GPS interference across much of the United States, exposing a seasonal risk to precision farming.
A map built from 68 X-ray-selected galaxy clusters reveals Quipu’s extraordinary scale, while its boundary, mass and cosmological meaning demand more careful language than “largest object.”
A 2024 occultation indicates that the 500-kilometre trans-Neptunian object 2002 XV93 carries a 100-to-200-nanobar atmosphere, but neither an impact nor continuing outgassing has been demonstrated.
Cloud-9 contains radio-bright neutral hydrogen but no detectable stellar population; if its gas is pressure-supported, an unseen halo of several billion solar masses must hold it together.
The Sun temporarily raised 3I/ATLAS to about 246,000 kilometres per hour, but its record incoming excess speed and positive orbital energy guarantee a one-way departure.
A catalogue of 6,594 Gaia solar twins contains an age pattern consistent with widespread outward migration during the Milky Way bar’s formation, though the proposed benefit to life remains a hypothesis.
Stellar occultations suggest Pluto’s long pressure plateau is ending as nitrogen gas begins condensing back onto its frozen surface.
The discovery of organic molecules at two distant Martian lake beds hints that ancient Mars possessed the chemical building blocks for life across an entire planet, not just in isolated pockets.
A fundamental mystery about the universe's fate hinges on whether astronomers have been systematically mismeasuring the most distant stellar explosions.
The proposed polar planet around 2M1510 was inferred from backward orbital precession. A half-day timestamp mismatch may have manufactured the signal.
The one-third figure comes from a 2016 global model using 2014 satellite data and 35,000 ground checks. Later naked-eye reports suggest the visible night has continued to brighten.
