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Showing results 1 - 10 of 215
ALMA Scientists Uncover the Mystery of Early Massive Galaxies Running on Empty
ALMA Scientists Uncover the Mystery of Early Massive Galaxies Running on Empty
September 22, 2021 at 11:00 am | News Release

Early massive galaxies—those that formed in the three billion years following the Big Bang—should have contained large amounts of cold hydrogen gas, the fuel required to make stars. But scientists observing the early Universe with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Hubble Space Telescope have spotted something strange: half a dozen early massive galaxies that ran out of fuel.

a bright blue young star with a cloud of cold gas surrounding it
ALMA Reveals Carbon-Rich, Organic Birth Environments of Planets
September 15, 2021 at 9:00 am | News Release

An international collaboration of scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) has completed the most extensive chemical composition mapping of the protoplanetary disks around five nearby young stars at high resolution, producing images that capture the molecular composition associated with planetary births, and a roadmap for future studies of the makeup of planet- and comet-forming regions. The new study unlocks clues about the role of molecules in planetary system formation, and whether these young planetary systems in the making have what it takes to host life.

NSF Awards Funding for Next-Generation VLA Antenna Development
NSF Awards Funding for Next-Generation VLA Antenna Development
August 9, 2021 at 2:00 pm | News Release

The National Science Foundation has awarded NRAO $23 Million for design and development work on the Next Generation Very Large Array, a project proposed as one of the world’s next generation of cutting-edge astronomical research facilities. The award includes funding for producing a prototype antenna for this new radio telescope system.

Scientists Observe Gas Re-accretion in Dying Galaxies for the First Time
Scientists Observe Gas Re-accretion in Dying Galaxies for the First Time
July 29, 2021 at 8:00 am | News Release

A new study from scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) suggests that previously displaced gases can re-accrete onto galaxies, potentially slowing down the process of galaxy death caused by ram pressure stripping, and creating unique structures more resistant to its effects.

False color image of protoplanetary disks side by side. Left is a ring disk showing blue scattered outer ring, green inner rings with gaps, and a yellow core. Center is a transition disk with a thin outer blue ring and thin green and yellow rings, and a large empty cavity in the center. Right is a compact small disk with thin blue and green rings, and a large inner yellow core with no gaps.
Mind the Gap: Scientists Use Stellar Mass to Link Exoplanets to Planet-Forming Disks
June 23, 2021 at 8:00 am | News Release

Using data for more than 500 young stars observed with the Atacama Large Millimeter/Submillimeter Array (ALMA), scientists have uncovered a direct link between protoplanetary disk structures—the planet-forming disks that surround stars—and planet demographics. The survey proves that higher mass stars are more likely to be surrounded by disks with “gaps” in them and that these gaps directly correlate to the high occurrence of observed giant exoplanets around such stars. These results provide scientists with a window back through time, allowing them to predict what exoplanetary systems looked like through each stage of their formation.

Study of Young Chaotic Star System Reveals Planet Formation Secrets
Study of Young Chaotic Star System Reveals Planet Formation Secrets
June 17, 2021 at 9:00 am | News Release

A team of scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) to study the young star Elias 2-27 have confirmed that gravitational instabilities play a key role in planet formation, and have for the first time directly measured the mass of protoplanetary disks using gas velocity data, potentially unlocking one of the mysteries of planet formation.

Twenty galaxies in the nearby universe shown as ALMA and Hubble Space Telescope composites. They are shown in orange and red to highlight their different structures, including spirals, rings, S shapes, and more.
Cosmic Cartographers Map Nearby Universe Revealing the Diversity of Star-Forming Galaxies
June 8, 2021 at 12:15 pm | News Release

A team of astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) has completed the first census of molecular clouds in the nearby Universe. The study produced the first images of nearby galaxies with the same sharpness and quality as optical imaging and revealed that stellar nurseries do not all look and act the same. In fact, they’re as diverse as the people, homes, neighborhoods, and regions that make up our own world.

ALMA Shows Massive Young Stars Forming in “Chaotic Mess”
ALMA Shows Massive Young Stars Forming in “Chaotic Mess”
April 27, 2021 at 10:00 am | News Release

Astronomers used ALMA to study three young, high-mass stars and found, not the orderly, stable process of accreting new material seen in low-mass stars, but instead a “chaotic mess.” They conclude that their observations support a proposed “disordered infall” model for massive young stars that was supported by earlier computer simulations.

Image showing an active M dwarf star, Proxima Centuari, in red with many star spots, ejecting a large stellar flare in yellow and white. Proxima Centauri b, a small Earth-like planet is seen in the distant right of the image.
Record-breaking Stellar Flare From Nearby Star Recorded in Multiple Wavelengths for the First Time
April 21, 2021 at 10:00 am | News Release

Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) observed a record-breaking stellar flare from Proxima Centauri. The study also marks the first time that a powerful stellar flare, other than those from the Sun, has been observed with such complete wavelength coverage.

VIDEO: Multi-wavelength Observations Reveal Impact of Black Hole on M87 Galaxy
VIDEO: Multi-wavelength Observations Reveal Impact of Black Hole on M87 Galaxy
April 14, 2021 at 5:00 am | News Release

New multi-wavelength observations mounted by the Event Horizon Telescope (EHT) collaboration across the entire electromagnetic spectrum have provided new insight into the impact of the black hole at the core of galaxy M87 on its immediate, and not so immediate, surroundings.

Showing results 1 - 10 of 215