Webb separated two Project Hephaistos red dwarfs from dusty galaxies only about one arcsecond away, showing that WISE had blended their infrared light. Five original candidates still await equally decisive follow-up.
One axion-dark-energy model hides a negative cosmological constant beneath today’s acceleration, producing an 11-billion-year turnaround and a 33.3-billion-year lifespan.
Gemini classified real and bogus candidates across three optical surveys from only 15 in-context examples each, but speed, cost and explanation fidelity still limit deployment.
Two slight moon tilts helped constrain Io's earlier orbit, a vanished disk edge and Jupiter's still-expanded state near the end of the solar nebula.
Webb turned weak distortions in roughly 250,000 usable galaxy shapes into a one-arcminute map of the dark-dominated mass threading the COSMOS field.
ACT’s final microwave-background measurements reinforce the 13.8-billion-year age, while Rajendra Gupta’s 26.7-billion-year result depends on a hybrid tired-light model and changing physical constants.
Mars and Venus share carbon-dioxide-dominated air and induced magnetospheres, yet their atmospheric inventories, climates and escape histories are radically different.
2017 OF201 is visible for only a sliver of its 25,000-year orbit, turning one archival discovery into a carefully qualified estimate of a much larger hidden population.
Magellan's side-looking radar reached through an enormous skylight beside Nyx Mons, revealing a laterally continuing void best explained as a lava tube.
Webb's MIRI spectrum identifies oxygen-rich silicates and H2O in the vast envelope of IRS 3, an AGB star seen 0.17 parsec from Sagittarius A* in projection.
A 320-metre oblique impact can reproduce Deimos's giant polar cavity while redistributing debris across the moon, implying an extremely weak and porous interior.
Webb spectra suggest an old massive galaxy contains far more faint, low-mass stars than Milky Way-based estimates assume, potentially multiplying the inferred mass of its earliest counterparts.
One 750-TeV IceCube alert led astronomers to a rare, lensed dusty starburst at redshift 2.988. The galaxy is the best candidate in the field, not a confirmed neutrino source.
A directly weighed Saturn-mass lens strengthens the free-floating planet case, but the estimate of roughly 20 such worlds per star remains a broad, model-dependent population inference.
Enceladus may have only a few kilometres of ice at its active south pole, but its true advantage over Europa is a plume that carries ocean-derived material into space.
The 93-billion-light-year observable diameter is a present comoving distance, not the length travelled by ancient photons. Distinguishing four cosmic horizons resolves the paradox.
