ESO for the Public

Press Releases

eso1223 — Organisation Release

Fourth Summit of the Pacific Alliance takes place at ESO's Paranal Observatory — Four Presidents at Paranal for signature of Pacific Alliance Treaty

6 June 2012: The presidents of Chile, Colombia, Mexico and Peru met today at ESO’s Paranal Observatory in the Atacama Desert of Chile, seeing first hand the state-of-the-art telescopes and technology of ESO’s flagship site. The presidents gathered at Paranal for the fourth Summit of the Pacific Alliance, at which the Alliance’s Framework Agreement was ratified.

eso1222 — Photo Release

ALMA Turns its Eyes to Centaurus A

31 May 2012: A new image of the centre of the distinctive galaxy Centaurus A, made with the Atacama Large Millimeter/submillimeter Array (ALMA), shows how the new observatory allows astronomers to see through the opaque dust lanes that obscure the galaxy’s centre, with unprecedented quality. ALMA is currently in its Early Science phase of observations and is still under construction, but is already the most powerful telescope of its kind. The observatory has just issued the Call for Proposals for its next cycle of observations, in which the growing telescope will have increased capabilities.

eso1221 — Photo Release

A Deeper Look at Centaurus A

16 May 2012: The strange galaxy Centaurus A is pictured in a new image from the European Southern Observatory. With a total exposure time of more than 50 hours this is probably the deepest view of this peculiar and spectacular object ever created. The image was produced by the Wide Field Imager of the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile.

eso1220 — Photo Release

VISTA Views a Vast Ball of Stars

9 May 2012: A new image of Messier 55 from ESO's VISTA infrared survey telescope shows tens of thousands of stars crowded together like a swarm of bees. Besides being packed into a relatively small space, these stars are also among the oldest in the Universe. Astronomers study Messier 55 and other ancient objects like it, called globular clusters, to learn how galaxies evolve and stars age.

eso1219 — Photo Release

Sifting through Dust near Orion's Belt

2 May 2012: A new image of the region surrounding the reflection nebula Messier 78, just to the north of Orion’s Belt, shows clouds of cosmic dust threaded through the nebula like a string of pearls. The observations, made with the Atacama Pathfinder Experiment (APEX) telescope[1], use the heat glow of interstellar dust grains to show astronomers where new stars are being formed.

eso1218 — Photo Release

A Cluster Within a Cluster

25 April 2012: The star cluster NGC 6604 is shown in this new image taken by the Wide Field Imager attached to the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile. It is often overlooked in favour of its more prominent neighbour, the Eagle Nebula (also known as Messier 16), that lies a mere wingspan away. But the framing of this picture, which places the star cluster in a landscape of surrounding gas and dust clouds, shows what a beautiful object NGC 6604 is in its own right.

eso1217 — Science Release

Serious Blow to Dark Matter Theories? — New study finds mysterious lack of dark matter in Sun’s neighbourhood

18 April 2012: The most accurate study so far of the motions of stars in the Milky Way has found no evidence for dark matter in a large volume around the Sun. According to widely accepted theories, the solar neighbourhood was expected to be filled with dark matter, a mysterious invisible substance that can only be detected indirectly by the gravitational force it exerts. But a new study by a team of astronomers in Chile has found that these theories just do not fit the observational facts. This may mean that attempts to directly detect dark matter particles on Earth are unlikely to be successful.

eso1216 — Science Release

ALMA Reveals Workings of Nearby Planetary System

12 April 2012: A new observatory still under construction has given astronomers a major breakthrough in understanding a nearby planetary system and provided valuable clues about how such systems form and evolve. Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered that planets orbiting the star Fomalhaut must be much smaller than originally thought. This is the first published science result from ALMA in its first period of open observations for astronomers worldwide.

eso1215 — Organisation Release

ESO Expands its Headquarters

4 April 2012: The European Southern Observatory (ESO) has contracted architects Auer+Weber to design an extension to its Headquarters at Garching bei München, Germany. The innovatively styled new office building will help to house the growing number of Garching staff, and be the cradle of the technological innovations needed for ESO’s ambitious projects such as the European Extremely Large Telescope. With construction expected to be completed by the end of 2013, the expanded ESO Headquarters will contribute greatly to the development of the Garching research campus.

eso1214 — Science Release

Many Billions of Rocky Planets in the Habitable Zones around Red Dwarfs in the Milky Way

28 March 2012: A new result from ESO’s HARPS planet finder shows that rocky planets not much bigger than Earth are very common in the habitable zones around faint red stars. The international team estimates that there are tens of billions of such planets in the Milky Way galaxy alone, and probably about one hundred in the Sun’s immediate neighbourhood. This is the first direct measurement of the frequency of super-Earths around red dwarfs, which account for 80% of the stars in the Milky Way.

eso1213 — Photo Release

VISTA Stares Deep into the Cosmos — Treasure trove of new infrared data made available to astronomers

21 March 2012: ESO's VISTA telescope has created the widest deep view of the sky ever made using infrared light. This new picture of an unremarkable patch of sky comes from the UltraVISTA survey and reveals more than 200 000 galaxies. It forms just one part of a huge collection of fully processed images from all the VISTA surveys that is now being made available by ESO to astronomers worldwide. UltraVISTA is a treasure trove that is being used to study distant galaxies in the early Universe as well as for many other science projects.

eso1212 — Science Release

The Feeding Habits of Teenage Galaxies

14 March 2012: New observations made with ESO’s Very Large Telescope are making a major contribution to understanding the growth of adolescent galaxies. In the biggest survey of its kind astronomers have found that galaxies changed their eating habits during their teenage years - the period from about 3 to 5 billion years after the Big Bang. At the start of this phase smooth gas flow was the preferred snack, but later, galaxies mostly grew by cannibalising other smaller galaxies.

eso1211 — Photo Release

Galaxies Get Up Close and Personal — VST captures collisions in young galaxy cluster

7 March 2012: The VLT Survey Telescope (VST) at ESO’s Paranal Observatory in Chile has imaged a fascinating collection of interacting galaxies in the Hercules galaxy cluster. The sharpness of the new picture, and the hundreds of galaxies captured in great detail in less than three hours of observations, attest to the great power of the VST and its huge camera OmegaCAM to explore the nearby Universe.

eso1210 — Science Release

VLT Rediscovers Life on Earth — By looking at the Moon

29 February 2012: By observing the Moon using ESO’s Very Large Telescope, astronomers have found evidence of life in the Universe — on Earth. Finding life on our home planet may sound like a trivial observation, but the novel approach of an international team may lead to future discoveries of life elsewhere in the Universe. The work is described in a paper to appear in the 1 March 2012 issue of the journal Nature.

eso1209 — Photo Release

APEX Turns its Eye to Dark Clouds in Taurus — Star formation in “dark markings of the sky”

15 February 2012: A new image from the APEX (Atacama Pathfinder Experiment) telescope in Chile shows a sinuous filament of cosmic dust more than ten light-years long. In it, newborn stars are hidden, and dense clouds of gas are on the verge of collapsing to form yet more stars. It is one of the regions of star formation closest to us. The cosmic dust grains are so cold that observations at wavelengths of around one millimetre, such as these made with the LABOCA camera on APEX, are needed to detect their faint glow.

eso1208 — Photo Release

VLT Takes Most Detailed Infrared Image of the Carina Nebula

8 February 2012: ESO’s Very Large Telescope has delivered the most detailed infrared image of the Carina Nebula stellar nursery taken so far. Many previously hidden features, scattered across a spectacular celestial landscape of gas, dust and young stars, have emerged. This is one of the most dramatic images ever created by the VLT.

eso1207 — Photo Release

A Pocket of Star Formation

1 February 2012: This new view shows a stellar nursery called NGC 3324. It was taken using the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile. The intense ultraviolet radiation from several of NGC 3324's hot young stars causes the gas cloud to glow with rich colours and has carved out a cavity in the surrounding gas and dust.

eso1206 — Science Release

The Wild Early Lives of Today's Most Massive Galaxies — Dramatic star formation cut short by black holes

25 January 2012: Using the APEX telescope, a team of astronomers has found the strongest link so far between the most powerful bursts of star formation in the early Universe, and the most massive galaxies found today. The galaxies, flowering with dramatic starbursts in the early Universe, saw the birth of new stars abruptly cut short, leaving them as massive — but passive — galaxies of aging stars in the present day. The astronomers also have a likely culprit for the sudden end to the starbursts: the emergence of supermassive black holes.

eso1205 — Photo Release

The Helix in New Colours

19 January 2012: ESO’s VISTA telescope, at the Paranal Observatory in Chile, has captured a striking new image of the Helix Nebula. This picture, taken in infrared light, reveals strands of cold nebular gas that are invisible in images taken in visible light, as well as bringing to light a rich background of stars and galaxies.

eso1204 — Science Release

Planet Population is Plentiful — Planets around stars are the rule rather than the exception

11 January 2012: An international team, including three astronomers from the European Southern Observatory (ESO), has used the technique of gravitational microlensing to measure how common planets are in the Milky Way. After a six-year search that surveyed millions of stars, the team concludes that planets around stars are the rule rather than the exception. The results will appear in the journal Nature on 12 January 2012.

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