Topic
The study of celestial objects via infrared radiation, often requiring cryogenically cooled detectors to avoid instrument heat overwhelming faint signals.
SPHEREx spectra of 37 brown dwarfs in The Astrophysical Journal trace water, carbon dioxide, carbon monoxide and methane across the full temperature range. Lead author Zafar Rustamkulov says models struggle to match objects whose clouds are thinning.
Reality
ESA says Webb's infrared image of NGC 7129 shows a 3.5-light-year cavity carved by outflows from one young star of 5 to 8 solar masses. The link between that star and the cavity rests on ESA's reading of a single snapshot.
Perspective Coverage
3 publishersReality
Kate Su's team used Webb and Spitzer spectra of 21 extreme debris disks to infer that about a third come from vaporizing impacts between Mars-sized bodies. Silica marks those violent cases, and it turns up only around stars younger than 300 million years.
Reality
Webb spectra identified nine new brown dwarfs in the IC 348 nursery, the faintest estimated at about two Jupiter masses, a record low for the class. It is still open whether brown dwarf formation stops there or this survey simply could not see any fainter.
Reality
The Wide Field Instrument passed its first in-flight tests of detectors, calibration source, filter wheel and focus, and NASA says first science images are still expected by early 2027 with months of commissioning left.
Reality