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JWST Finds Brown Dwarfs Barely Twice Jupiter’s Mass
This week in science: JWST pushes star-like formation to two Jupiter masses, LIGO reveals quantum back-action on 40-kilogram mirrors, WASP-12 b loses hydrogen into space, and Chandra uncovers 84 hypersoft X-ray sources.
JWST’s Little Red Dots May Hide Black Hole Seeds Inside Supermassive Stars
This week in science: JWST’s little red dots may be quasi-stars around growing black-hole seeds, Gaia measures the Milky Way’s slow disk tilt, IceCube constrains one LUX-ZEPLIN dark-matter explanation, and Spectrum reaches orbit from Europe.
Milky Way’s Fastest Star S301 Could Reveal How Sagittarius A* Spins
This week in science: S301 races around Sagittarius A* at more than 8% of light speed, REBELS-25 reveals an unexpectedly mature early galaxy, JWST probes a reflective lava-world atmosphere, and ancient nova shells may surround U Geminorum.
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