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All Astrochemistry Black Holes Brown Dwarfs Cosmology Exoplanets Fast Radio Burst Galaxies People and Events Protoplanetary Disks Radio Telescopes and Technology Stars The Solar System

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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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Artist impression of the Wolfe Disk, a massive rotating disk galaxy in the early, dusty universe. The galaxy was initially discovered when ALMA examined the light from a more distant quasar (top left).

Wolfe Disk Press Release Videomore_horiz

Artist impression of the Wolfe Disk, a massive rotating disk galaxy in the early, dusty universe. The galaxy was initially discovered when ALMA examined the light from a more distant quasar (top left).

Wolfe Disk Artist Impressionmore_horiz

X Galaxy

Double Boomerangmore_horiz

Artist impression of the interstellar comet 2I/Borisov as it travels through our solar system. This mysterious visitor from the depths of space is the first conclusively identified comet from another star. The comet consists of a loose agglomeration of ices and dust particles, and is likely no more than 3,200 feet across, about the length of nine football fields. Gas is ejected out of the comet as it approaches the Sun and is heated up.

Interstellar Comet 2I/Borisovmore_horiz

Vimeo Thumbnail for Animation: Measuring a Brown Dwarf’s Wind Speed

Animation: Measuring a Brown Dwarf’s Wind Speedmore_horiz

Artist's conception of a brown dwarf and its magnetic field. The magnetic field, rooted deep in its interior, rotates at a different rate than the top of the atmosphere. The difference allowed astronomers to determine the object's wind speed.

Brown Dwarf and its Magnetic Fieldmore_horiz

Event Horizon Telescope image of the jet structure of quasar 3C 279 in April 2017.

EHT image of quasar 3C 279more_horiz

Vimeo Thumbnail for ‘Tatooine’ protoplanetary disks press release video

‘Tatooine’ protoplanetary disks press release videomore_horiz

Two examples of aligned and misaligned protoplanetary disks around binary stars (circumbinary disks), observed with ALMA. Binary star orbits are added for clarity.
Left: in star system HD 98800 B, the disk is misaligned with inner binary stars. The stars are orbiting each other (in this view, towards and away from us) in 315 days.
Right: in star system AK Sco, the disk is in line with the orbit of its binary stars. The stars are orbiting each other in 13.6 days.

Aligned and Misaligned Circumbinary Disksmore_horiz

Artist impression of a double sunset on a 'Tatooine' exoplanet forming in a circumbinary disk that is misaligned with the orbits of its binary stars.

Double Sunset on a ‘Tatooine’ Exoplanetmore_horiz

The spiral galaxy M81 and its satellite, M82 as seen by the Very Large Array.

M81 in Radiomore_horiz

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Artist impression of distant, dusty galaxymore_horiz

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MAMBO-9. Distant, Dusty Star-forming Galaxymore_horiz

Artist impression of the merging galaxy NGC 6240.

Artist impression of the merging galaxy NGC 6240more_horiz

NGC 6240 as seen with ALMA (top right) and the Hubble Space Telescope (combined image on the left and zoomed in on the bottom right). In the ALMA image, the molecular gas is blue and the black holes are the red dots. The ALMA image provides the sharpest view of the molecular gas around the black holes in this merging galaxy.

NGC 6240 galaxy crashmore_horiz

NGC 6240 as seen with ALMA. The molecular gas is blue and the black holes are the red dots. This image provides the sharpest view yet of the molecular gas around the black holes in this merging galaxy.

The Turbulent Life of Two Supermassive Black Holes Caught in a Galaxy Crashmore_horiz

This schematic shows a proposed pathway (top row) for the formation of protostars, based on four very young protostars (bottom row) observed by VLA (orange) and ALMA (blue). Step 1 represents the collapsing fragment of gas and dust. In step 2, an opaque region starts to form in the cloud. In step 3, a hydrostatic core starts to form due to an increase in pressure and temperature, surrounded by a disk-like structure and the beginning of an outflow. Step 4 depicts the formation of a class 0 protostar inside the opaque region, that may have a rotationally supported disk and more well-defined outflows. Step 5 is a typical class 0 protostar with outflows that have broken through the envelope (making it optically visible), an actively accreting, rotationally supported disk. In the bottom row, white contours are the protostar outflows as seen with ALMA.

The formation of protostarsmore_horiz

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Protostars in Orion Molecular Cloudsmore_horiz

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