November 7, 2026

Good morning, investigators. Today's lead started as the kind of source a deep-field survey might mistake for something much farther away. Two years of Webb imaging instead reveal JADES-GS-BD-5 moving across the sky with a measurable parallax, fixing its distance at about 64 parsecs and making it roughly three times farther than the previous most distant Y dwarfs with parallax measurements. The object is extremely cold and probably in the planetary-mass regime, but it is free-floating and no host system is evident. The disk stories are equally useful exercises in resisting first impressions. DQ Tau's molecular lines fade and narrow across three accretion bursts even while other tracers pulse, pointing to changing disk geometry more than rapid chemistry. A new structure-function framework separates several kinds of simulated turbulence and finds persistent elongated velocity structure in TW Hya, while the IM Lup reanalysis shows that shifting the assumed disk angle by only a few degrees can erase an apparent rotating spiral. The modeling results add boundaries rather than discoveries: wind-dominated disks concentrate dust most effectively only under extreme inner-disk conditions, and atmospheric thermal tides can push rocky planets away from synchronous rotation without telling us what any particular world actually does. Better distances, better geometry, and better null models are the whole desk today—and that is often where the real progress lives.