麻豆传媒

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The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) and the University of Florida (UF) have announced a dynamic new partnership to advance science education and public outreach at a future Next Generation Very Large Array (ngVLA) antenna site in Florida. This collaboration, signed with a Memorandum of Understanding (MOU) at the debut of the ngVLA prototype antenna in New Mexico last week, brings together world-class scientific expertise and educational leadership to create unique opportunities for students, educators, and the public across Florida. If constructed, the ngVLA, a flagship project recommended by the Astro2020 Decadal Survey, would be the most advanced radio telescope of its kind, capable of probing the universe with unprecedented sensitivity and resolution

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A team of international astronomers have embarked on an exciting new project to hunt for planets forming around young stars. The exoALMA project, using the powerful Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, is peering into the dusty disks where planets are born. Thanks to newly developed advanced imaging techniques, exoALMA has revealed the most exquisite images of young solar systems, never before seen by astronomers. This research project involved 17 papers published in a special issue of the Astrophysical Journal of Letters, with several more coming this summer. ALMA is supported in part by the U.S. National Science Foundation through the NSF National Radio Astronomy Observatory (NSF NRAO).

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Most stars form in clusters, where hundreds to thousands of stars coevolve in proximal environmental conditions that dictate how planetary systems might develop. Nearby massive stars can also contribute intense ionizing radiation, adding external dynamics that form a shell of ionized gas around a protoplanetary disk and emit unique hydrogen recombination spectral lines. Now, a team of astronomers has used archived Atacama Large Millimeter/submillimeter Array (ALMA) observations to identify for the first time the characteristic radio recombination lines associated with these ionized shells surrounding Solar System-sized proplyd disks in the Orion Nebula Cluster, at a distance of 1000 light-years from Earth.

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The U.S. National Science Foundation Green Bank Observatory (NSF GBO) is embarking on a crucial maintenance project to protect the structural integrity of the NSF Green Bank Telescope (NSF GBT), the world鈥檚 largest fully steerable radio telescope. The NSF GBT has been serving the scientific community for 25 years.

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The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) is supporting Intuitive Machines鈥� second lunar mission, IM-2, which landed on the surface of the Moon, Thursday, March 6th.Intuitive Machines has been working with the NSF NRAO over the past year to utilize the NSF Very Long Baseline Array (NSF VLBA) to support precise tracking and data downlink of Intuitive Machines鈥� Nova-C lunar lander, named Athena, during its mission to the Moon.

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Swirling through the Milky Way鈥檚 central zone, in the turbulent region surrounding the supermassive black hole at the core of our galaxy, dust and gases constantly churn as energetic shock waves ripple throughout.

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Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA), along with complementary data from the Atacama Pathfinder Experiment (APEX), have discovered a surprisingly large reservoir of molecular gas in a protocluster of galaxies known as SPT2349-56. This protocluster, located approximately 12 billion light-years away, is a region of the early universe where a cluster of galaxies is just beginning to form.

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At a distance of just over four light years, Proxima Centauri is our nearest stellar neighbor and is known to be a very active M dwarf star. Its flare activity has been well known to astronomers using visible wavelengths of light, but a new study using observations with the Atacama Large Millimeter/submillimeter Array (ALMA) array highlight this star鈥檚 extreme activity in radio and millimeter wavelengths, offering exciting insights about the particle nature of these flares as well as potential impacts to the livability of its terrestrial, habitable-zone planets.

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Software engineers have been hard at work to establish a common language for a global conversation. The topic鈥攔evealing the mysteries of the Universe. The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) has been collaborating with U.S. and international astronomy institutions to establish a new open-source, standardized format for processing radio astronomical data, enabling interoperability between scientific institutions worldwide.

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Tucked away in a star forming region in the Taurus constellation, a pair of circling stars are displaying some unexpected differences in the circumstellar disks of dust and gas that surround them.

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Astronomers have made groundbreaking discoveries about young star formation in the Large Magellanic Cloud (LMC), using the James Webb Space Telescope (JWST), along with observations from the Atacama Large Millimeter/submillimeter Array (ALMA). The study, published in The Astrophysical Journal, gives new insight into the early stages of massive star formation outside our galaxy.

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New observations from the National Science Foundation National Radio Astronomy Observatory鈥檚 (NSF NRAO) Karl G. Jansky Very Large Array (NSF VLA) provide compelling evidence supporting a universal mechanism for the collimation of astrophysical jets, regardless of their origin.聽

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A groundbreaking discovery has revealed the presence of a blazar鈥攁 supermassive black hole with a jet pointed directly at Earth鈥攁t an extraordinary redshift of 7.0. The object, designated VLASS J041009.05鈭�013919.88 (J0410鈭�0139), is the most distant blazar ever identified, providing a rare glimpse into the epoch of reionization when the universe was less than 800 million years old.

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A new agreement between the Center for Astrophysics | Harvard & Smithsonian (CfA) and the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) will help the Event Horizon Telescope (EHT) take its next steps 鈥� into space. The EHT made headlines around the world in 2019 after it took the first images of a black hole, and then in 2022, imaged the supermassive black hole at the heart of the Milky Way galaxy. The Black Hole Explorer (BHEX) mission would extend this work by combining several of NRAO鈥檚 ground-based radio antennas with a space-based telescope to produce the most detailed images in history. BHEX would allow scientists to reveal the light that orbits the edge of a black hole before it escapes, known as a photon ring.

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NGC 1068 is a well-known, relatively nearby, bright galaxy with a supermassive black hole at its center. Despite its status as a popular target for astronomers, however, its accretion disk is obscured by thick clouds of dust and gas. A few light-years in diameter, the outer accretion disk is dotted by hundreds of distinct water maser sources that hinted for decades at deeper structures. Masers are distinct beacons of electromagnetic radiation that shine in microwave or radio wavelengths; in radio astronomy, water masers observed at a frequency of 22 GHz are particularly useful because they can shine through much of the dust and gas that obscures optical wavelengths. Led by astronomer Jack Gallimore of Bucknell University, an international team of astronomers and students set out to observe NGC 1068 with twin goals in mind: astrometric mapping of the galaxy鈥檚 radio continuum and measurements of polarization for its water masers. 鈥淣GC 1068 is a bit of a VIP among active galaxies,鈥�

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New observations from the Atacama Large Millimeter/submillimeter Array (ALMA) suggest that planet formation can occur even in harsh stellar environments previously thought to be inhospitable.An international team of astronomers used ALMA to capture high-resolution images of eight protoplanetary disks in the Sigma Orionis cluster, which is irradiated by intense ultraviolet light from a massive nearby star.

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The element carbon is a building block for life, both on Earth and potentially elsewhere in the vast reaches of space. There should be a lot of carbon in space, but surprisingly, it's not always easy to find. While it can be observed in many places, it doesn鈥檛 add up to the volume astronomers would expect to see. The discovery of a new, complex molecule (1-cyanopyrene), challenges these expectations, about where the building blocks for carbon are found, and how they evolve. This research was published today in the journal Science.

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Traditionally, planet formation has been described as a 鈥渂ottom-up鈥� process, as dust grains gradually collect into bigger conglomerations over tens of millions of years: from microns, to centimeters, to meters, to kilometers.

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Astronomers learn about the universe by pointing their telescopes to the sky. But what happens when a satellite comes between them and the cosmological objects they hope to study?

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Socorro, NM 鈥� The US National Science Foundation (NSF) National Radio Astronomy Observatory (NSF NRAO) and the Karl G. Jansky Very Large Array (NSF VLA) have played a pivotal role in uncovering the origins of persistent emissions observed in some fast radio bursts (FRBs). An international team of astronomers has demonstrated that this persistent radiation originates from a plasma bubble, shedding new light on the enigmatic sources powering these cosmic phenomena.