All articles tagged with #alma
Astronomers using the Atacama Large Millimeter/submillimeter Array released the largest, most detailed image of the Milky Way's center, revealing long gas filaments feeding star formation and offering a connected view of our galaxy’s core that will be explored further with JWST and the ELT, though telescope time remains highly oversubscribed.
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers mapped the Milky Way’s 650-light-year-wide Central Molecular Zone in unprecedented detail, revealing a complex network of dense, cold gas and molecules around Sagittarius A* to help explain how stars form in our galaxy’s extreme core.
Scientists using the ALMA telescope have produced the largest, most detailed image of the Milky Way’s chaotic center—the Central Molecular Zone (CMZ)—covering about 650 light-years. The mosaic reveals massive streams of turbulent gas, fast-moving stars, and rare structures like the Millimeter Ultra-Broad Line Object (MUBLO), offering new insights into how extreme galactic centers form stars and resemble early-universe environments. The ACES survey, involving ~160 scientists across 70 institutions, aims to develop a 3D CMZ map to unravel how matter flows and shapes star birth near Sagittarius A*.
A new ESO/ALMA image maps the Milky Way’s Central Molecular Zone, coloring different molecules to reveal the complex gas structures at the galaxy’s center (cyan sulfur monoxide, green silicon monoxide, red isocyanic acid, blue cyanoacetylene, magenta carbon monosulphide) while foreground stars are seen in infrared.
Astronomers using the James Webb Space Telescope (JWST) and the Atacama Large Millimeter/submillimeter Array (ALMA) have identified 70 dusty, star-forming galaxies at the edge of the observable universe, seen less than 1 billion years after the Big Bang. From an initial set of around 400 bright galaxies, JWST follow-up confirmed these candidates as metal-rich, suggesting that heavy-element production and star formation began earlier than current models predict, potentially reshaping our understanding of cosmic evolution and linking these galaxies to both ultrabright early systems and older, quiescent populations.
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) as part of the Resolve exoKuiper belt Substructures (ARKS) survey captured 24 disks around young stars, showing complex rings, halos and asymmetries that indicate a turbulent, collision‑driven “teenage” phase of planet formation and offering new clues to how planetary systems evolve—including hints about our Solar System’s early history.
Astronomers using ALMA have imaged Gomez’s Hamburger (GoHam), one of the largest edge-on protoplanetary disks, finding a stratified arrangement of gas and dust and signs of ongoing planet formation, including a potential giant-planet core or clump dubbed GoHam b in the outer disk. The disk’s sheer size and uneven features—such as a bright, lopsided region and a northern wind—make it an ideal laboratory to study how giant planets can form far from their star and how such planets shape their surroundings.
NASA captured rare snowfall in the Atacama Desert, one of the driest places on Earth, due to an unusual cold-core cyclone, causing temporary disruption at the ALMA observatory and highlighting increasing climate variability in the region.
A Japanese research team measured the temperature of the universe 7 billion years ago using data from ALMA, finding it to be about 5.13 K, roughly double today's temperature, which confirms predictions of the Big Bang theory with high precision and supports our understanding of cosmic evolution.
Astronomers using JWST and ALMA studied the distant galaxy A1689-zD1 and found it has an unusually low dust-to-gas ratio despite its high metallicity and dust mass, suggesting different dust formation and destruction processes in early galaxies.
ALMA and JWST have captured the first image of the launch point of protostellar jets in the HH 211 system, providing new insights into how young stars grow by shedding excess angular momentum through magnetic field-driven jets, which helps material accrete onto the star.
Scientists detected heavy water in a planet-forming disk around the young star V883 Orionis, providing evidence that this water predates the star itself and originated in the cold molecular cloud that formed the star, offering insights into the journey of water in planetary systems.
Astronomers have discovered that the largest Oort Cloud comet, C 2014 UN271, is active far from the Sun, venting carbon monoxide gas at over a billion miles away, challenging previous assumptions about comet dormancy in the outer solar system. Using ALMA, they observed jets and activity driven by volatile ices, providing new insights into comet evolution and the early solar system materials. The comet will approach the Sun in 2031, offering opportunities to study how its activity changes as it warms.
Astronomers have observed the earliest stages of planet formation around the young star HOPS-315 using JWST and ALMA, capturing the formation of solid minerals close to the star, which marks the beginning of rocky planet development and provides new insights into the initial steps of planetary system creation.
Luca Guadagnino's film 'After the Hunt' attempts to explore cancel culture and complex moral gray areas within academia, but it ultimately fails to provide meaningful insight, instead presenting a muddled and heavy-handed critique that leaves viewers questioning its purpose and message.