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Bureau: Tokyo
JWST identified TOI-199b — a Saturn-sized exoplanet 330 light-years away with Earth-like temperatures and a methane-rich atmosphere — the first temperate giant studied in such atmospheric detail.
A combined JWST and Hubble study of nearly 9,000 young clusters in four nearby galaxies, published May 6 as weic2608, found more massive clusters clear their natal gas faster.
NASA said May 1 that JWST observations of Sextans A — a 4-million-light-year dwarf galaxy with 3-7% solar metallicity — caught iron and silicon carbide dust forming without metal-rich precursors.
SpaceX's Starship Flight 12 — first V3 flight, first Pad 2 launch, first Starlink-imaging deploy — ended in an Indian Ocean splashdown after one engine loss.