Astronomy news from Cosmic Herald — telescopes, exoplanets, black holes, and the discoveries reshaping our picture of the universe.
FAST stacked 21-cm signals from 2.5 million DESI galaxies and found the universe's atomic hydrogen barely budged while star formation fell by more than half. The fuel is there; galaxies just stopped burning it.
Read the story →Hubble archival data reveal a strengthening 10-sided vortex ringing Saturn's south pole — a feature Cassini never saw in 13 years at the planet, and a strange new sibling to its famous northern hexagon.
A new Hubble image reveals a 210-by-140-light-year cavity blown into the N44 nebula by massive stars, with nearly 30,000 still-forming stars catalogued in the surrounding shell.
New ALMA radio imaging shows two 2,000°C-hotter patches on Betelgeuse's surface that have barely budged in seven years, defying standard convection models and raising questions about the star's newly imaged companion.
NASA's newest Webb image pierces the dust of a Carina Nebula cometary globule called the "Treasure Chest," revealing roughly 70 young stars, including a rare 19-solar-mass O-type star, many still wrapped in planet-forming discs.
NASA's Astronomy Picture of the Day reveals why the August 12 total solar eclipse's corona over Benavente, Spain glowed gold instead of white — a rare mix of low-sun geometry and wildfire smoke.
A partially built telescope in Chile has resolved 22 distinct bow shocks in the Helix Nebula's outskirts, giving astronomers a rare direct measurement of how a dying star's ejecta gets shredded and mixed back into the galaxy over roughly 10,000 years.
NASA's new Chandra-Webb-Hubble composite of the Tarantula Nebula looks like stacked cellophane, and the science behind it explains why the region glows with far less X-ray light than star-formation models predicted.
NASA's James Webb Space Telescope has imaged the "Lion Nebula" in infrared, exposing dust clumps and ionized gas invisible to Hubble and revealing the white dwarf that will finish dismantling the structure in about 10,000 years.
Rubin Observatory's early-preview data has already turned up Aquarius IV, a 13-billion-year-old dwarf galaxy so faint it barely outshines a single bright star — an early hint of the dozens more the LSST survey is expected to uncover.
A reanalysis of decade-old New Horizons images has turned up dark streaks on Pluto's nitrogen glacier that look like recent liquid seepage — the first sign of active flowing liquid anywhere on the dwarf planet.
New adaptive-optics imaging from the LBT and VLT shows main-belt asteroid (44) Nysa has an unprecedented three-lobed shape and a previously unknown ~1 km moon, possibly making it the first confirmed contact-trinary asteroid.
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