Aankondigingen

19 maart 2012: The latest issue of the free magazine Science in School is now available online and in print. As always, the European journal dedicated to science teachers and educators offers numerous interesting articles and activities for students. Issue 22 takes a closer look at the real science behind forensics, and at how students can do genetic fingerprinting at school. In the same vein, an article explains how you can build your own microscope. In “Harnessing the power of the Sun”, you can find out how a tokamak fusion reactor works, while other articles include natural production of hydrogen by bacteria, global warming research in Antarctica, one space scientist’s passion for astronomy and a guide to build and launch your own paper rocket. You can also find out about the most recent European Union Contest for Young Scientists, at which the EIROforum members — including ESO — offered great prizes. Science in ...

12 maart 2012: The famous British synthpop band Erasure today released a video for their latest single — Fill Us with Fire (ESO 50th Anniversary Exclusive), as a tribute to ESO’s 50th Anniversary. The video, which was improvised on the spur of the moment during an informal visit, features the Very Large Telescope as well as some of ESO’s stunning images of the night sky. This is the third single to be released from their 2011 album Tomorrow’s World. The project started with a visit to the observatory by Andy Bell, lead singer of the band. The observatory, home of the Very Large Telescope (VLT), sits atop a solitary mountain at 2635 metres altitude in the Atacama Desert of northern Chile, and offers stunning vistas of the surrounding desert and of the night sky. Taken with the magnificent setting, Andy asked if he could take the opportunity to film while on site. Andy ...

9 maart 2012: The European Southern Observatory has launched an initiative to attach extra information about context (metadata) to the images in its huge collection. The Astronomy Visualization Metadata standard that is now implemented has been developed in collaboration with many other major observatories, including partners from NASA, ESA, the California Academy of Sciences and the University of Arizona. It is now easier than ever to learn more about the fantastic imagery of the Universe, including the archives of ESO. The Astronomy Visualization Metadata (AVM) standard was created to make access to astronomical images easier by collecting extra information in a standard way [1]. This extra information — known as metadata — includes details similar to those included with every digital snapshot picture coming from cameras today — who took the picture, when was it taken, where in the sky was the camera pointed and so on. It is, however, specifically designed for ...

9 maart 2012: with Dr. Henk Spruit (Max-Planck-Institut für Astrophysik) Global warming and the greenhouse effect of carbon dioxide affect us all. The Sun brings us the warmth that we need to live. But could part of global warming be caused by changes in the Sun, and not by our greenhouse gases? In other words, are we the main culprits after all? In the news, we hear regularly about destructive tropical storms, extreme cold, or unusually warm winters. Are these caused by the global warming? Insurance companies have gathered a lot of statistics. Dr. Henk Spruit (Max-Planck-Institute für Astrophysik) will debate these critical issues with Café & Kosmos guests on 14 March. He will also discuss recent changes in the Sun, and explain how we understand our star and what is happening inside it. Please note that the Café & Kosmos events take place in German. What: Sun, sunspots and climate changeWhen: Wednesday, ...

6 maart 2012: The iconic Bavarian car-maker BMW chose ESO’s Paranal Observatory, home of the Very Large Telescope (VLT), for the global campaign featuring the brand’s latest high-end model, the 6 Series Gran Coupé, which will have its world debut at the Geneva International Motor Show on 6 March 2012. The exclusive car can be seen parked in front of some of the VLT’s Unit Telescopes and Auxiliary Telescopes. People who know the real observatory will no doubt notice that a new building was added. The revised site, with its prominent metallic and earth colours and BMW’s new coupé could seem straight out of a James Bond movie. In fact, the Paranal Observatory’s award-winning Residencia is just that. Another unusual element of the image is the presence of clouds. While clouds are common in most places on Earth, Paranal enjoys 330 clear days per year, so to get a balanced composition clouds had ...

2 maart 2012: A remarkable thin-shell mirror for ESO’s Very Large Telescope has been delivered by the French company SAGEM. It is 1120 millimetres across but just 2 millimetres thick, making this mirror much thinner than most glass windows. This mirror has to be thin enough to act almost like a flexible film. When installed in the telescope the shape of its reflective surface will be constantly changed by tiny amounts to correct for the blurring effects of the Earth’s atmosphere and create much sharper images. The shell mirror is a sheet of ceramic material that has been polished to a very accurate shape. The manufacturing process starts with a block of Zerodur ceramic, provided by Schott Glass (Germany) that is more than 70 millimetres thick. Most of this material is ground away to create the final thin shell. The challenge is to apply very little pressure and low levels of stress to ...

29 februari 2012: The ESO Call for Proposals for Period 90 has been released. The deadline is 29 March 2012, 12:00 noon CEST.

24 februari 2012: The next pieces of the jigsaw for the European Extremely Large Telescope (E-ELT) — the world’s biggest eye on the sky — are coming together. At ESO’s Garching facility in Germany, a full-size mock-up of a small section of the E-ELT primary mirror and its support structures provides a first test of multiple segments of the E-ELT’s main mirror. Four of the 1.45-metre segments — the final mirror will have 798 — are being put through their paces to see how these hexagonal mirrors and their complex support units behave in real conditions, and whether they match the exacting requirements needed for the telescope. The mirror segments are made from different types of material from different manufacturers and are not yet coated to make them reflective. The current tests focus on the mechanical support systems, whose advanced sensors and actuators are used to keep the separate segments in the right ...

22 februari 2012: Four special telescopes to fire laser beams high into the atmosphere to create artificial stars have been delivered to ESO. These are vital components of the Four Laser Guide Star Facility (4LGSF) for ESO’s Very Large Telescope (VLT) that were developed by the Netherlands Organisation for Applied Scientific Research (TNO). The 4LGSF is part of a next-generation adaptive optics system, the Adaptive Optics Facility (AOF), that will make the VLT’s 4th Unit Telescope Yepun a fully adaptive telescope in 2013. Composed of four powerful 20-watt lasers, the 4LGSF will help the VLT correct the image distortion caused by turbulence in the air. Telescopes usually collect light coming from the sky and focus it into an instrument. However, the new components send light in the opposite direction. These “launchers”, are used to project the lasers into the sky to create brilliant points of light. The laser beams excite a layer of ...

6 februari 2012: with Dr Markus Kissler Patig, ESO The European Southern Observatory (ESO) is setting out to build the largest optical telescope ever conceived: the European Extremely Large Telescope (E-ELT). This giant, with a primary mirror of 40 metres in diameter, is one of the most ambitious research infrastructures of the next decade, worldwide! Dr Markus Kissler-Patig (ESO), the Project Scientist for the E-ELT, will present the project and its technical challenges. Much of the necessary technology is forefront research, and the complexity of the machine is immense, promising headaches for many engineers over the next decade. He will discuss with the guests of Café & Kosmos why such a challenge is worthwhile: this observatory will allow ground-breaking discoveries in many fields. For the first time, we will be technically capable of not only detecting, but also characterising habitable planets beyond the Solar System. We will also be able to measure the ...

3 februari 2012: World-renowned Swiss astronomers Michel Mayor and Didier Queloz of the Geneva Observatory have been awarded the 2011 BBVA Foundation Frontiers of Knowledge Award in Basic Sciences for their work on exoplanets. The foundation recognised their groundbreaking efforts in developing “new astronomical instruments and experimental techniques that led to the observation of planets outside the solar system”. These were instrumental in the first discovery of an exoplanet around a normal star, made by their team in 1995. The discovery revolutionised astronomy and initiated an entire new field that is focused on finding and characterising exoplanets. Since then, this field has been recognised by agencies and institutes around the world as one of the major challenges for astronomy in the coming decades. Michel Mayor and his then PhD student Didier Queloz developed the radial velocity technique for planet detection, which looks for the wobble of a star caused by the gravitational pull ...

26 januari 2012: The Italian astronomer Franco Pacini, who was a key figure in the astronomy community, passed away yesterday, on 25 January 2012. Pacini began his long-term involvement with ESO in 1975, when he joined the newly created Scientific Division, based in Geneva, Switzerland. In 1978 he moved back to Italy as Professor of Astrophysics at the University of Florence and Director of the Arcetri Observatory, which he led until the creation of INAF in 2001. He played an important role in the accession of Italy to ESO in 1982, represented Italy on the ESO Council — ESO’s governing body — and was also Council President between 1991 and 1994. He served as President of the International Astronomical Union between 2001 and 2003, and was the founding father of the International Year of Astronomy 2009, a huge success for scientific outreach and increasing the awareness of astronomy around the world. He will ...

19 januari 2012: The site of ESO’s Paranal Observatory, home of the world’s most advanced optical instrument, the Very Large Telescope (VLT), was one of the selected locations for an ad campaign entitled “Perfect Places”, recently launched worldwide by the British car maker Land Rover. The campaign presents Land Rover vehicles shot in unique places around the globe. The combination of state-of-the art technology, cutting-edge science, a stunning environment and impressive facilities makes ESO’s Paranal Observatory a unique place in the world for scientists, engineers and visitors alike. However, ESO’s site in Chile has recently drawn the attention of Land Rover as well, as being the perfect choice for “Perfect Places”, their new print and digital media ad campaign. Apart from being the best place for ground-based optical astronomy due to the astronomical quality of the atmosphere — characterised by the number of clear nights and the stability of the atmosphere (also known ...

19 januari 2012: The American Astronomical Society has awarded the 2012 Joseph Weber Award for Astronomical Instrumentation to Thijs de Graauw for his leadership in the construction of powerful new astronomical instruments including the Short Wavelength Spectrometer on the Infrared Space Observatory (ISO) and the Heterodyne Instrument For the Infrared (HIFI) on the Herschel Space Observatory. HIFI is a spectrometer placed on the European Space Agency's infrared space observatory Herschel, which was launched in May 2009. HIFI was built to look for water in a variety of celestial objects, to probe stellar environments, and to study the role of gas and dust in the formation of stars and planets, and the evolution of galaxies. Recently, thanks to HIFI, Herschel confirmed that some comets contain water similar to that on Earth, supporting the theory that Earth's water comes from comets. It also discovered cold water vapour in a disk of dust around a young ...

19 januari 2012: Earlier today, the Royal Swedish Academy of Sciences awarded the 2012 Crafoord Prize in Astronomy to Reinhard Genzel and Andrea Ghez for their separate work on proving the existence of the supermassive black hole at the centre of our galaxy. German astronomer Reinhard Genzel is director of the Max Planck Institute for Extraterrestrial Physics, located in Garching on the same campus as ESO’s headquarters. His team has been involved in an unprecedented 20-year-long study of the movement of stars around the galactic centre, which is based on observations made with ESO’s New Technology Telescope at La Silla as well as ESO’s Very Large Telescope on Paranal. The tracking of the orbits of these stars over many years has enabled astronomers to provide the strongest evidence yet of the presence of a supermassive black hole at the centre of our galaxy, as evidenced by the tight orbits of the stars due ...

18 januari 2012: The New York Times has included the Back in Time app developed by the company Landka among its Top 10 iPad apps in 2011. ESO went into partnership with Landka to deliver content for this educational app, which is an animated history e-book that guides the reader through time from the first moments of the Universe’s history until the most recent events. ESO contributed images and animations for the first four chapters: The Big Bang, The First Stars, The Milky Way and The Solar System.According to The New York Times: “The coolest history textbook you’ll find on the iPad, Back in Time tells the story of the Universe using a 24-hour clock, where the Big Bang starts the day and humans appear in the final seconds.”An intuitive interface allows the user to scroll quickly through time, entering any major event in the history of our civilisation. Each event is documented ...

16 januari 2012: This episode of the ESOcast looks at one of the key discoveries in physics made by astronomers in the past two decades: that our Universe is not only expanding, but that this expansion is also speeding up. Observations from ESO’s telescopes in Chile played a significant role in this revolutionary discovery, and scientists Saul Perlmutter (Lawrence Berkeley National Laboratory and University of California, Berkeley, USA), Brian P. Schmidt (Australian National University), and Adam G. Riess (STScI, Baltimore, USA) were awarded the 2011 Nobel Prize in Physics for the find. Two of the follow-up projects were led by ESO staff members, Chris Lidman and Bruno Leibundgut, and other ESO staff members, Isobel Hook and Jason Spyromilio, were contributors to crucial papers. By observing exploding stars known as Type Ia supernovae, teams led by the Nobel laureates established that the expansion of the Universe was not slowing down, as had been expected ...

9 januari 2012: with Prof. Jochen Schieck, Excellence Cluster Universe The Standard Model of particle physics is one of the best-validated models in physics today. Nevertheless, this model fails to account for some observed phenomena, such as dark matter, or the fact that there is no longer any antimatter in the Universe. With particle accelerators, scientists are trying to recreate the conditions in the early Universe and attempt to tackle these open questions. At Café & Kosmos on 10 January 2012, Professor Jochen Schieck (Excellence Cluster Universe) will describe two new accelerators before discussing their collision experiments: the Large Hadron Collider (LHC) at CERN and the new Super KEKB accelerator, which will start up in 2014, from the Japanese High Energy Accelerator Research Organisation, KEK. While the experiments at the LHC are tuned for very high energies, the physicists are adjusting the "newcomer" Super KEKB for maximum precision. Jochen Schieck will discuss with ...

5 januari 2012: On 1 January 2012, European radio astronomy entered a new era with the implementation of RadioNet3, the third iteration of RadioNet, the European radio astronomy collaboration. As the recognised European body for radio astronomy, RadioNet aims at facilitating access to leading radio astronomy facilities around the world for European radio astronomers. The European Commission recently secured the project by granting it 9.5 million euros for the period 2012–2015. The Max-Planck Institute for Radio Astronomy (MPIfR) will work with 24 European partner institutions, as well as South Korea, Australia and South Africa, to offer access to all 18 existing radio astronomy facilities in Europe. The project will also take full advantage of the APEX telescope operated by ESO, as well as the recently opened Atacama Large Millimeter/submillimeter Array (ALMA) of which ESO is a partner, both located in Chile. By promoting cooperation and making use of state-of-the-art facilities around the world, ...

5 januari 2012: The year 2012 is ESO’s 50th anniversary. Established in 1962, ESO has evolved into a key focal point for Europe’s activities in ground-based astronomy, becoming the most productive observatory in the world, and now poised to take on a global role. Fifty years have brought many changes to ESO’s observatories, as the monthly ESO Then & Now Pictures of the Week [1] will showcase. For those who have witnessed ESO’s historical voyage from the inside, either as members of staff or simply as visitors to our sites, we have expanded the Your ESO Pictures Flickr Group [2] to include historical images. Please share your photo memories of ESO with us and everyone else by posting these “golden oldies” to the group — whether in colour or black and white, digital or analogue! The best pictures might make it into our Pictures of the Week section, or into our Anniversary coffee-table ...