2011.10.03
ALMA Opens Its Eyes
The most powerful millimeter/submillimeter-wavelength telescope in the world opens for business and reveals its first image Humanity’s most complex grou…
ALMA Discoveries
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2011.09.02
Successful Interferometer Test with Japanese 7-m and 12-m Antennas at AOS
On September 2, an interferometer test was conducted with the first Japanese 7-m and first 12-m antennas at the Array Operations Site (AOS) at 5000 m asl and i…
2011.08.11
Successful Interferometer Test with Two Japanese 7-m Antennas
On August 11, an interferometer test using two Japanese 7-m antennas was conducted at the Operations Support Facility (OSF) at 2900 m asl and interference frin…
2011.08.11
Successful Interferometer Test with Sixteen 12-m Antennas
On August 6, an interferometer test was conducted at the Array Operations Site (AOS) at 5000 m asl and fringes of 120 baselines were successfully obtained with…
2011.06.06
Successful Interferometer Test with Japanese 7-m antenna and 12-m antenna
On May 30, radio waves emitted by a variable star VX Sagittarii were collected by a Japanese 7-m antenna and a 12-m antenna, and interference fringes were suc…
2011.04.26
First Successful Interferometer Test with Two Japanese Antennas
On March 10, 2011, at the Operations Support Facility (OSF) at 2900 m asl., radio waves emitted by the Sun were collected by two 12-m Japanese antennas and in…
2010.12.12
Nine 12-m Antennas at AOS
On December 12, an American antenna of 12 m in diameter was transported from OSF (2,900 m asl) to AOS (5,000 m asl), bringing the total number of the antenna…
2010.12.08
ALMA Board Statement on Early Science
— ALMA Board Statement on Early Science — “At its meeting on November 16th-18th 2010, the ALMA Board noted the tremendous recent progress in…
2010.12.08
Test Image 1: Spiral Galaxy NGC253
This shows the well-known spiral NGC253, with an optical image of the whole galaxy on the left (credit: ESO). The ALMA test images show dense clouds of gas in …
2010.12.08
Test Image 2: Hot Molecular Core G34.26+0.15
An example of ALMA’s potential as a spectroscopic instrument: on the left is the map of the molecular “hot core” G34.26+0.15, which is unreso…
2010.12.08
Test Image 3: Disk around Bata-Pictoris
This shows the emission from the disk of dust surrounding the star Beta-Pictoris. On the left is an image at 70 microns from Herschel, (Olofsson et al., SDP Pr…
2010.12.08
Test Image 4: Quasar BRI 0952-0115
As a test of ALMA’s ability to observe broad spectral lines, we observed the quasar BRI 0952-0115, which is at a redshift of z = 4.43. The object is agai…
2010.05.29
Four 12-meter Antennas at AOS
At the Array Operations Site (AOS), there are currently four 12-meter antennas, which are under the performance evaluation. Since each of the antennas is usual…
2009.12.25
ALMA Video "Japanese ALMA antenna became the first to arrive at the ALMA 5000 m site." was released.
View This Video Other ALMA Videos
2009.10.29
ACA 7-m Antenna Arrived at the OSF
The ACA 7-m antenna, which entered a Chilean port on October 26, safely arrived at the ALMA Operations Support Facility (OSF) in the evening of October 29 (aft…
2009.10.26
ACA 7-m Antenna Arrived in Chile
The first ACA 7-m Antenna, shipped from the Port of Kobe on September 20, safely arrived in Chile after a one-month journey. According to a crew, the sea was c…
2009.09.04
First Shipment of a Band 4 Receiver Cartridge
The first Band 4 receiver cartridge was shipped overseas. Members of the Band 4 Cartridge Team were watching the truck carrying the cartridge as if sending off…
2009.09.04
ALMA Video-6 "Construction of ALMA 2007" and ALMA Video-7 "Construction of ALMA 2008" were released.
View ALMA Video-6 “Construction of ALMA 2007” View ALMA Video-7 “Construction of ALMA 2008” Other ALMA Videos
2009.07.28
ACA Antenna Pads at the AOS
Antenna pads for the Atacama Compact Array (four 12-m antennas and twelve 7-m antennas constructed by NAOJ) have been prepared at the Array Operations Site (AO…
2009.06.25
Band 4 and Band 8 Critical Design Review
From June 22 through 25, the Critical Design Review (CDR) for Band 4 and Band 8 receivers, developed by ALMA-J, was held in Mitaka, and their final design was …
NEW ARTICLES
2026 10.15
Jun Sawada, Executive Chairman of NTT Inc. and Chairperson of the Committee on National Space Policy, Visits ALMA Facilities in Chile
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On September 15, 2026, Mr. Jun Sawada, Executive Chairman of NTT Inc. and Chairperson of the Committee on National Spac…
2026 10.8
ALMA Reveals Hidden Chemistry and Unexpected Radio Beacons Around Young Stars
An international team brought a major ALMA survey to open a new window on how organic molecules take shape around young…
2026 9.8
Watching a Massive Binary Assemble in Real Time
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have obtained the most detailed three-dimens…
