Astronomers using ESO facilities have been advancing astronomical studies for decades. Along the way, there have been many truly significant findings that have had a major impact on our understanding of the Universe. This ESOcast takes a look at what have been ranked as the top 10 discoveries made using ESO telescopes. More information: http://www.eso.org/public/videos/esocast75a/ Credit: ESO
The MUSE instrument on ESO’s Very Large Telescope has given astronomers the best ever three-dimensional view of the deep Universe. After staring at the Hubble Deep Field South region for a total of 27 hours the new observations reveal the distances, motions and other properties of far more galaxies than ever before in this tiny piece of the sky. But they also go beyond Hubble and reveal many previously unseen objects. This ESOcast explains what makes the new MUSE observations so significant and shows how astronomers interpret three-dimensional datacubes of the distant Universe.
This ESOcast takes a close look at an unusual new group of small telescopes that has recently achieved first light at ESO’s Paranal Observatory in northern Chile. More information, full credits and download options are available on: http://www.eso.org/public/videos/eso1502a/
The European Extremely Large Telescope — or E-ELT for short — will be by far the largest optical and near-infrared telescope in the world. In early December 2014 the ESO Council gave the go-ahead for the first construction phase of the telescope. More information, full credits and download options are available on: http://www.eso.org/public/videos/eso1440a/
ESOcast 69 presents the result of the latest ALMA observations, which reveal extraordinarily fine detail that has never been seen before in the planet-forming disc around the young star HL Tauri. This revolutionary image is the result of the first observations that have used ALMA with its antennas at close to the widest configuration possible. As a result, it is the sharpest picture ever made at submillimetre wavelengths. More information, full credits and download options are available on: http://www.eso.org/public/videos/eso1436a/
On 11 October 2014 the ESO Headquarters in Garching, Germany, once more opened their doors to the public. Some 3 300 people used this special opportunity of the Open House Day to visit the centre of the world's foremost astronomical organisation.
This new ESOcast features six specialists in different areas who work at ESO in Germany and in Chile. Get to know the work they do at ESO, but also learn about interesting hobbies they pursue in their free time and how these hobbies may be connected to their work. Credits and more information are available on: http://www.eso.org/public/videos/esocast67a/
On 19 June 2014, a major milestone on the road to the construction of the European Extremely Large Telescope was reached. Part of the 3000-metre peak of Cerro Armazones was blasted away as a step towards levelling the summit. This paves the way for the largest optical/infrared telescope in the world. Credits and more information are available on: http://www.eso.org/public/videos/esocast66a/
In the Spring of 2014, a team of ESO Photo ambassadors embarked on a pioneering expedition to ESO's three observatories in Chile. Their mission was to capture a wide range of images and timelapses of the magnificent Chilean night sky and landscape in crisp Ultra High Definition. Join our heroes in their adventures in the arid Atacama Desert as they bring our Universe closer than ever before.
The clear night sky offers one of the most beautiful views in nature. The eye adapts to the dark and the pupil widens to collect more light and thus allow fainter stars to become visible. But the light-collecting area of the human eye is tiny. To peer much deeper into the night sky astronomers need telescopes with enormous primary mirrors to do a much better job. Credits and more information at: http://www.eso.org/public/videos/esocast63a/
In this ESOcast we look at how astronomers have used ESO's HARPS planet hunter in Chile, along with other telescopes around the world, to discover three planets orbiting stars in the cluster Messier 67. Although more than one thousand planets outside the Solar System are now confirmed, only a handful have been found in star clusters. Remarkably one of these new exoplanets is orbiting a star that is a rare solar twin — a star that is almost identical to the Sun in all respects.
More information and download options are available on: http://www.eso.org/public/videos/esocast61a/
Astronomers know that planets around other stars beyond the Solar System are common. But these planets are very hard to see and even harder to study. Fortunately, there is a clever trick that helps to separate the feeble glow of a planet from the dazzling glare of its parent star: exploiting the polarisation of the light reflected from the planet. More information and download options are available on: http://www.eso.org/public/videos/esocast60a/
More information and download options are available on: http://www.eso.org/public/videos/esocast59a/
The detection of this “dust trap” solves a long-standing mystery: how dust particles around stars sum up to form planets, comets, and other rocky bodies. ESOcast 58 goes deep into the dust trap to explore how this comet factory works. More information and download options are available on: http://www.eso.org/public/videos/eso1325a/
May 25 2013 is an important anniversary for the Very Large Telescope – it is exactly fifteen years since the first light on the first of its four Unit Telescopes. Since then the four original giant telescopes have been joined by the four small Auxiliary Telescopes that form part of the VLT Interferometer (VLTI). The VLT is one of the most powerful and productive ground-based astronomical facilities in existence. In 2012 more than 600 refereed scientific papers based on data from the VLT and VLTI were published. This ESOcast shows spectacular images from the VLT for every year of its operation. More information: http://www.eso.org/public/videos/eso1322a/ Credit: ESO
For our newest ESOcast, we pose this puzzle: how do you move a 100-tonne giant ALMA antenna 30 kilometres up onto the oxygen-starved Chajnantor Plateau, 5000 metres above sea level and finish the job with millimetre precision? More information: http://www.eso.org/public/videos/esocast56a/ Credit: ESO