astronomy

A Harvard-led team detects escaping helium around super-Earth LHS 1140 b, the first confirmed atmosphere found on a rocky world in a habitable zone.

Webb found Beta Pictoris d by reading its atmosphere's chemical fingerprint, a first for exoplanet discovery, while a separate imaging study independently confirmed it.

ESO's Very Large Telescope captured the clearest-ever image of Betelgeuse B, showing the long-sought companion is 2.6 to 3.1 times the sun's mass.

STFC's 2.7% PPAN budget cut fully withdraws e-MERLIN funding, threatening Jodrell Bank's Lovell Telescope with closure.

A dwarf-galaxy transient first spotted in 2019 developed radio emission so bright, years later, that a Chinese-led team says it may define a new class of relativistic explosion.

oMEGACat BH-2, a 4.46-solar-mass black hole orbited by a main-sequence star once every 94 years, is the first stellar-mass black hole detected in the globular cluster Omega Centauri.

Ultraviolet spectroscopy from Hubble confirmed four white dwarfs hiding behind red dwarf companions within 65 light-years of Earth, one first suspected 27 years ago.

A low-mass black hole in a spiral galaxy 1.8 billion light-years away has stayed radio-bright for at least eight years, a transition astronomers say has never been observed before.

A UC Irvine-led study cut GJ 3378b's estimated mass and orbital period, placing the nearby super-Earth more solidly within its star's habitable zone.

ESA's Euclid telescope has found 31 quasars from the universe's first billion years. EUCL J172902.75+641018.1, at redshift 7.77, breaks a record that stood since 2021, and the haul more than doubles the known quasars at redshift 7 or above.

James Webb's NIRSpec spectrograph measured isotopic ratios in interstellar comet 3I/ATLAS as it left the inner solar system, pointing to an origin during the universe's 'cosmic noon.'

NASA has set a firm August 30 launch date for the Nancy Grace Roman Space Telescope, eight months ahead of schedule, as the observatory is packed for its barge trip to Kennedy Space Center.