JWST

JWST has tracked the first complete daily cloud cycle on an exoplanet, finding that WASP-94Ab grows magnesium silicate clouds each morning and clears them each evening, while correcting a decade of skewed atmospheric measurements from Hubble.

Astronomers used JWST's MIRI to directly study the surface geology of LHS 3844 b, a super-Earth 48.5 light-years away, revealing a basaltic, atmosphere-free world resembling Mercury — a first for exoplanet science.

NASA's James Webb Space Telescope has characterized the atmosphere of TOI-199b, a Saturn-sized world 330 light-years away—the first temperate giant exoplanet studied in detail.

A Science Advances study using Webb data finds Nereid's icy composition rules out a Kuiper Belt origin, making it the sole intact remnant of Neptune's primordial moon system.

NIRSpec spectroscopy of COLA1 and NEPLA4 reveals black holes 400-800 times overmassive for their host galaxies, offering the first detailed look at the aftermath of early-universe quasar activity.

A UC Riverside-led team used the largest JWST observing program to trace galaxies along the cosmic web from today out to redshift z ~ 7, and released the full pipeline and catalog publicly.

A UC Davis-led team using JWST has measured the kinematics of XMM-VID1-2075 at redshift 3.45 and found no detectable rotation, a property previously seen only in mature nearby galaxies.

A Western University team led by Jan Cami used JWST's MIRI instrument to image planetary nebula Tc 1, finding C60 buckyballs confined to a hollow shell around the white dwarf and revealing an unexplained question-mark structure at the center.

A new JWST MIRI observation of the 12-light-year-away exoplanet Epsilon Indi Ab shows less ammonia than models predict, pointing to thick water-ice cirrus clouds that current atmospheric models omit.

JWST observations of 29 Cygni b point to disk accretion, with carbon- and oxygen-rich signatures and a spin-aligned orbit that argue against star-like collapse.

Two companion JWST studies confirm a spectrally resolved helium emitter with no detectable metals sitting 3 kiloparsecs from GN-z11, the strongest signature yet of Population III stars at redshift 10.6.

Webb telescope finds a Jupiter-sized planet orbiting a tiny red dwarf has fewer heavy elements in its atmosphere than its own star, defying all existing formation theories.