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2019 ALMA Top 10 2021 Science Highlights AAS June 2023 ALMA Astrophotography Project AR Models CDL Co-op Program Stories Desktop/Video Chat Backgrounds Image of the Week Jansky Lectures ngVLA Artist Impressions ngVLA Science Goals PHANGS-ALMA Catalog 2021 The Baseline VERTICO VLA Astrophotography Project VLASS Women in Astronomy IV 2017

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Zoom Backgrounds ALMA 7

ALMA Background 7more_horiz

Zoom Backgrounds ALMA 5

ALMA Background 5more_horiz

Zoom Backgrounds ALMA 4

ALMA Background 4more_horiz

Zoom Backgrounds ALMA 3

ALMA Background 3more_horiz

Zoom Backgrounds ALMA 2

ALMA Background 2more_horiz

In a first for radio astronomy, scientists have detected millimeter-wavelength light from a short-duration gamma-ray burst. This artist's conception shows the merger between a neutron star and another star (seen as a disk, lower left) which caused an explosion resulting in the short-duration gamma-ray burst, GRB 211106A (white jet, middle), and left behind what scientists now know to be one of the most luminous afterglows on record (semi-spherical shock wave mid-right). While dust in the host galaxy obscured most of the visible light (shown as colors), millimeter light from the event (depicted in green) was able to escape and reach the Atacama Large Millimeter/submillimeter Array (ALMA), giving scientists an unprecedented view of this cosmic explosion. From the study, the team confirmed that GRB 211106A is one of the most energetic short-duration GRBs ever observed.

The First Short GRB Millimeter Afterglow: The Wide-Angled Jet of Gamma Ray Burst 211106Amore_horiz

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.

Protoplanetary Disks Side-by-Side Comparisonmore_horiz

Vimeo Thumbnail for The Baseline 6: Rotating Disks In The Early Universe

The Baseline 6: Rotating Disks In The Early Universemore_horiz

Vimeo Thumbnail for NRAO’s Baseline Episode 1: Trio of Infant Planets Discovered around Newborn Star

NRAO’s Baseline Episode 1: Trio of Infant Planets Discovered around Newborn Starmore_horiz

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.

PHANGS-ALMA Surveymore_horiz

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.

ALMA observes record-breaking stellar flare from Proxima Centaurimore_horiz

This infographic illustrates how ALMA contributes to the EHT observations. With its shorter baseline, ALMA is sensitive to larger scales than the EHT and so ALMA can fill in the lower-resolution, larger-scale structures that the EHT misses.

Tracing the Image of a Black Hole – EHT and ALMAmore_horiz

ALMA antennas

Trio of ALMA Antennasmore_horiz

ALMA antennas at night

Night at the OSFmore_horiz

ALMA 7-meter antenna

ALMA’s Japanese 7-meter Antennasmore_horiz

ALMA antenna and Transporter

ALMA and Ottomore_horiz

ALMA antenna

North American ALMA Antenna and Starsmore_horiz

ALMA Band 10 receiver

ALMA’s Band 10 Receivermore_horiz

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	Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.
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