2014.03.03
All NAOJ ALMA Receivers Shipped Out
On February 18, the NAOJ Advanced Technology Center shipped out the last seven ALMA Band 10 receivers to Chile. This marks the completion of delivery of a tota…
ALMA Discoveries
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2014.02.13
Commentary on the press release "A Drastic Chemical Change Occurring in Birth of Planetary System: Has the Solar System also Experienced it?"
Written by Masaaki Hiramatsu, the Education and Public Outreach Officer at NAOJ Chile Observatory Stars are formed by the contraction of interstellar gas an…
2014.02.13
A Drastic Chemical Change Occurring in Birth of Planetary System: Has the Solar System also Experienced it?
A star is formed by gravitational contraction of interstellar gas (mostly H2) and dust. Even after the birth of a protostar (a baby star), the gas and dust …
2014.01.17
ALMA Discovers a Formation Site of a Giant Planetary System
Abstract A team of Japanese astronomers has obtained a firm evidence of formation of a giant planetary system around a young star by the observations with th…
2014.01.10
Youngest protoplanetary disk discovered with ALMA
Planets form in disks around their host protostar, but when and how disks form is still an unanswered question. ALMA observations by a team of astronomers led …
2014.01.07
ALMA Spots Supernova Dust Factory
Striking new observations with the Atacama Large Millimeter/submillimeter Array (ALMA) telescope capture, for the first time, the remains of a recent supernova…
2013.12.27
Completion of the ALMA Receiver Development
National Astronomical Observatory of Japan (NAOJ) achieved a major milestone in the construction of ALMA. In December 2013, NAOJ successfully completed the dev…
2013.12.18
ALMA Cycle 2 call for proposals attracts record number of applications
The ALMA Observatory’s Early Science Cycle 2 has attracted 1,382 proposals for observation time submitted by the international scientific community durin…
2013.11.22
ALMA and Hubble Observations Probe a Giant Blob, Himiko, Seen Close to Cosmic Dawn
Combining the capabilities of two powerful telescopes, the Atacama Large Millimeter/submillimeter Array (ALMA) and Hubble Space Telescope, astronomers have e…
2013.11.01
Successful Interferometer Test with Japanese Band 10 Receiver—Birth of Highest Frequency Radio Interferometer
On October 26 (Chilean Time), the Joint ALMA Observatory (JAO) successfully detected interference fringes from Callisto (a satellite of Jupiter) and Orion KL a…
2013.10.24
Unique Chemical Composition Surrounding Supermassive Black Hole—A Step toward Development of New Black Hole Exploration Method
An international research team led by Takuma Izumi, a second-year master’s student of science at the University of Tokyo, and Kotaro Kohno, a professor…
2013.10.16
ALMA Probes Mysteries of Jets from Giant Black Holes
Two international teams of astronomers have used the power of the Atacama Large Millimeter/submillimeter Array (ALMA) to focus on jets from the huge black hole…
2013.10.04
ALMA Discovers Large "Hot" Cocoon around a Small Baby Star
A large hot molecular cloud around a very young star was discovered by ALMA. This hot cloud is about ten times larger than those found around typical solar-m…
2013.10.03
Final Antenna Delivered to ALMA
The final antenna for the Atacama Large Millimeter/submillimeter Array (ALMA) project has just been handed over to the ALMA Observatory. The 12-meter-diameter …
2013.09.02
The world's first interferometric image at 500 GHz with ALMA Band 8 receivers
ALMA opens another window to the universe in the 500 GHz frequency band. Astronomers successfully synthesized the distribution of atomic carbon around a planet…
2013.08.21
ALMA Takes Close Look at Drama of Starbirth
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have obtained a vivid close-up view of material streaming away from a new-born star. …
2013.07.25
Starburst to Star Bust: Astronomers ID suspect behind dearth of high-mass galaxies
The cosmic fireworks that characterize a starburst galaxy can abruptly fizzle out after only a relatively brief period of star formation, and astronomers want …
2013.07.19
Snow Falling around Infant Solar System: Icy region gives planet and comet formation a boost
The sight of a snowfall can thrill children, but the first-ever snow line seen around a distant star gives astronomers an even greater thrill because of what i…
2013.06.27
Successful ALMA First Radio Imaging with Japanese Band 4 Receiver
ALMA telescope successfully captured its first radio image with Band 4 receiver developed by Japan in an ALMA test observation conducted in January 2013. The t…
2013.06.07
ALMA Discovers Comet Factory
--- New observations of a "dust trap" around a young star solve long-standing planet formation mystery
Astronomers using the new Atacama Large Millimeter/submillimeter Array (ALMA) have imaged a region around a young star where dust particles can grow by clump…
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2026 6.17
Toward a New Era of Astronomy: A New Step in Multi-Messenger Astronomy at Cosmological Distances - Gravitational Lensing Reveals a Connection Between Intense Star Formation 11 Billion Years Ago and High-Energy Neutrinos -
A remarkably bright galaxy affected by gravitational lensing, “Shadow Blaster,” was discovered through follow-up observ…
2026 6.9
Hiroaki Imada Receives the 2026 Shoichiro Yoshida Memorial Nikon Astronomy Achievement Award
The 2026 Shoichiro Yoshida Memorial Nikon Astronomy Achievement Award, presented by the Foundation for Promotion of Ast…
2026 5.22
Cosmic Chaos Beats Magnetism in the Birth of Massive Star Clusters
An international team of astronomers has discovered that chaotic turbulence, rather than orderly magnetic fields, is th…
