2023.03.13
ALMA and its Partners Celebrate 10 Years of Groundbreaking Science
March 13, 2023, marks the tenth anniversary of the Atacama Large Millimeter/submillimeter Array (ALMA), the world’s largest radio telescope. Over the pas…
News
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2023.03.13
Upgrade of ALMA Data Transmission System Led by Japan Starts
In 2018, ALMA published the strategic vision for development towards enhancing the telescope capabilities in the 2030s as the ALMA Development Roadmap. The mai…
2023.03.02
Resurrected Supernova Provides Missing-Link in Stellar Evolution
An international research team has discovered the first example of a supernova, known as SN 2018ivc, showing an unprecedented rebrightening at millimeter wavel…
2023.02.13
Ambassador of Chile to Japan visits NAOJ
On February 3, 2023, Ambassador of the Republic of Chile to Japan, His Excellency Mr. Ricardo G. Rojas, visited NAOJ Mitaka Campus.
2023.02.03
Outflows from Baby Star Affect Nearby Star Formation
Astronomers revealed fast gas outflows from a baby star strongly colliding with nearby dense gas where a group of baby stars are being born. The result suggest…
2023.01.20
A 1000x Sharper View - Are Magnetically Stabilized Streamers a Fundamental Building Block in High-Mass Star Formation?
The high resolution of the ALMA telescope has revealed that magnetic fields where massive stars are born play an important role in how matter is supplied to th…
2023.01.11
Model-Independent Method to Weigh Protoplanetary Disks
January 11, 2023 | Science
Astronomers have found a way to directly measure the amount of gas in protoplanetary disks without needing to make a…
2022.12.28
Four Telescopes for the Price of One
The ALMA observatory is pleased to announce that it has entered into Joint Proposal agreements with the Space Telescope Science Institute (STScI) for the James…
2022.12.20
ALMA Successfully Restarted Observations
Forty-eight days after suspending observations due to a cyberattack, the Atacama Large Millimeter/submillimeter Array (ALMA) is observing the sky again. The co…
2022.12.09
Measuring Gamma-Ray Bursts' Hidden Energy Unearths Clues to the Evolution of the Universe
Gamma-ray bursts are the most luminous explosions in the universe, allowing astrophysicists to observe intense gamma rays in short durations. Gamma-ray bursts …
2022.11.24
Director General Tsuneta makes courtesy visits to Ministry of Foreign Affairs and others in Chile
In conjunction with the ALMA Board meeting held in Santiago (Chile) on November 14-18, 2022, NAOJ Director General Saku Tsuneta made courtesy visits to the Emb…
2022.11.22
INTERNATIONAL TEAM OBSERVES INNERMOST STRUCTURE OF QUASAR JET
At the heart of nearly every galaxy lurks a supermassive black hole. But not all supermassive black holes are alike: there are many types. Quasars, or quasi-st…
2022.11.21
ALMA Update on the Recovery from Cyberattack
On October 29, 2022, the Atacama Large Millimeter/submillimeter Array (ALMA) suffered a cyberattack on its computer systems, forcing the suspension of astronom…
2022.11.02
ALMA Services Affected by Cyberattack
Last Saturday, October 29, at 6:14 AM, the ALMA observatory in Chile suffered a cyberattack on its computer systems, forcing the suspension of astronomical obs…
2022.10.26
The first cryogenic receivers that integrate all-metal 3D-printed RF components in radio astronomy
The NAOJ ALMA project and Advanced Technology Center have successfully fabricated corrugated horns by all-metal 3D-printing for the ALMA Band 1 receiver (Radio…
2022.08.29
Birth cry from a baby star in the Small Magellanic Cloud
Wide-field far-infrared image of the Small Magellanic Cloud obtained with the Herschel Space Observatory (left). ALMA image of the molecular outflow from the b…
2022.08.19
ALMA’s 2014 Ground-Breaking HL Tau Results Have Appeared in Over 1,000 Scientific Papers in Less Than a Decade
Ground-breaking 2014 HL Tau observational data from ALMA has been cited in more than 1,000 scientific studies in the past 7.5 years, aiding in major breakthrou…
2022.08.12
New Material “Fingerprint” to Understand Planetary System Formation with ALMA
A research team led by Tomohiro Yoshida, a graduate student at The Graduate University for Advanced Studies in Japan, has discovered that the abundances of dif…
2022.07.01
Capturing the Onset of Galaxy Rotation in the Early Universe
An international research team led by Tsuyoshi Tokuoka, a graduate student at Waseda University in Japan, has observed signs of rotation in a galaxy, which ex…
2022.06.17
Close encounter more than 10,000 years ago stirred up spirals in an accretion disk
An international research led by X. Lu, a former ALMA postdoc fellow at NAOJ and now an associate researcher at Shanghai Astronomical Observatory, has used hig…
NEW ARTICLES
2025 8.8
The Universe’s Secret Harvest: ALMA Sheds Light on “the Cosmic Grapes”
Super high-resolution ALMA and JWST observations unveil unexpected substructure and underlying gas dynamics in a faint,…
2025 8.5
Discovery of Protoplanetary Disk Caught in Explosion Driven by Stellar Jet
A research team led by Masataka Aizawa of Ibaraki University studied a protoplanetary disk around the young star WSB 52…
2025 6.26
Development of Total Power GPU Spectrometer was approved by ALMA Board
In April 2025, the ALMA Board approved the development of a new spectrometer for the Morita Array (*) designed and deve…
