Swedish–ESO Submillimetre Telescope (part 5) The New Technology Telescope (NTT) (part 4) The New Technology Telescope (NTT) (part 8) The New Technology Telescope (NTT) (part 11)
Swedish–ESO Submillimetre Telescope (part 5) The New Technology Telescope (NTT) (part 4) The New Technology Telescope (NTT) (part 8) The New Technology Telescope (NTT) (part 11)
Foundations for the VLT The New Technology Telescope (NTT) (part 10) ESO 1-metre Schmidt telescope (part 7) The Horsehead Nebula
Foundations for the VLT The New Technology Telescope (NTT) (part 10) ESO 1-metre Schmidt telescope (part 7) The Horsehead Nebula
Zooming in on the kilonova in NGC 4993 Interviews with Pale Red Dot scientists Artist's impression of gravitational lensing of a distant merger Panning across the galaxies NGC 1316 and 1317
Zooming in on the kilonova in NGC 4993 Interviews with Pale Red Dot scientists Artist's impression of gravitational lensing of a distant merger Panning across the galaxies NGC 1316 and 1317
MUSE —  close up of the H-alpha line in the strange galaxy NGC 4650A A trip around the Moon Zooming in on a new infrared view of the Carina Nebula The vampire double star SS Leporis
MUSE — close up of the H-alpha line in the strange galaxy NGC 4650A A trip around the Moon Zooming in on a new infrared view of the Carina Nebula The vampire double star SS Leporis
Pan across Abell 2744, Pandora’s Cluster ESO Movie 13: Polished Perfection The New Technology Telescope (NTT) (part 16) Life at La Silla (part 1)
Pan across Abell 2744, Pandora’s Cluster ESO Movie 13: Polished Perfection The New Technology Telescope (NTT) (part 16) Life at La Silla (part 1)
The New Technology Telescope (NTT) (part 21) Cerro Las Vizcachas (part 1) The New Technology Telescope (NTT) (part 19) Life at La Silla (part 2)
The New Technology Telescope (NTT) (part 21) Cerro Las Vizcachas (part 1) The New Technology Telescope (NTT) (part 19) Life at La Silla (part 2)
The New Technology Telescope (NTT) (part 14) Cerro Las Vizcachas (part 3) The New Technology Telescope (NTT) (part 17) The New Technology Telescope (NTT) (part 20)
The New Technology Telescope (NTT) (part 14) Cerro Las Vizcachas (part 3) The New Technology Telescope (NTT) (part 17) The New Technology Telescope (NTT) (part 20)
The New Technology Telescope (NTT) (part 18) Cerro Las Vizcachas (part 2) Artist’s impression of the Black Hole at the heart of M87 Zooming in on a neutron star in the Small Magellanic Cloud
The New Technology Telescope (NTT) (part 18) Cerro Las Vizcachas (part 2) Artist’s impression of the Black Hole at the heart of M87 Zooming in on a neutron star in the Small Magellanic Cloud
Animation of spectra of kilonova in NGC 4993 Neutron star merger seen in gravity and matter Localization of source Zooming in on the Cat’s Paw and Lobster Nebulae
Animation of spectra of kilonova in NGC 4993 Neutron star merger seen in gravity and matter Localization of source Zooming in on the Cat’s Paw and Lobster Nebulae
The sky over Peru Sundial Machu Picchu Artist’s impression of a transitional disc around a young star
The sky over Peru Sundial Machu Picchu Artist’s impression of a transitional disc around a young star
Artist’s impression of a transitional disc around a young star Mysterious ripples moving through the disc of AU Microscopii MUSE view of the Hubble Deep Field South MUSE —  running through the 3D data of NGC 4650A
Artist’s impression of a transitional disc around a young star Mysterious ripples moving through the disc of AU Microscopii MUSE view of the Hubble Deep Field South MUSE — running through the 3D data of NGC 4650A
MUSE views the unusual galaxy NGC 4650A MUSE views the unusual galaxy NGC 4650A Zooming in on the bright star cluster Messier 7 Zooming in on the star formation region NGC 2035
MUSE views the unusual galaxy NGC 4650A MUSE views the unusual galaxy NGC 4650A Zooming in on the bright star cluster Messier 7 Zooming in on the star formation region NGC 2035
Artist's impression of the Gliese 667C system Artist's impression of the Gliese 667C system KMOS on the Very Large Telescope (part 1) KMOS on the Very Large Telescope (part 2)
Artist's impression of the Gliese 667C system Artist's impression of the Gliese 667C system KMOS on the Very Large Telescope (part 1) KMOS on the Very Large Telescope (part 2)
KMOS on the Very Large Telescope (part 3) KMOS on the Very Large Telescope (part 4) KMOS on the Very Large Telescope (part 5) KMOS on the Very Large Telescope (part 6)
KMOS on the Very Large Telescope (part 3) KMOS on the Very Large Telescope (part 4) KMOS on the Very Large Telescope (part 5) KMOS on the Very Large Telescope (part 6)
Model of the evolution of the material around the old star R Sculptoris over 2000 years ESO Movie 12: The ESO 16-m VLT - The World's Largest Telescope Panning across NGC 3603 The New Technology Telescope (NTT) (part 12)
Model of the evolution of the material around the old star R Sculptoris over 2000 years ESO Movie 12: The ESO 16-m VLT - The World's Largest Telescope Panning across NGC 3603 The New Technology Telescope (NTT) (part 12)
Life at La Silla (part 3) Swedish–ESO Submillimetre Telescope (part 4) Life at La Silla (part 5) Paranal aerial view1996c
Life at La Silla (part 3) Swedish–ESO Submillimetre Telescope (part 4) Life at La Silla (part 5) Paranal aerial view1996c
Paranal aerial view1995c Paranal aerial view1996b Paranal aerial view 1997d Paranal aerial view1997c
Paranal aerial view1995c Paranal aerial view1996b Paranal aerial view 1997d Paranal aerial view1997c
Paranal aerial view 1996a Transporting the VLT mirror — 1993 — clip 2 VLT M1 acceptance testing 1995 - 4 Transporting the VLT mirror — 1993 — clip 1
Paranal aerial view 1996a Transporting the VLT mirror — 1993 — clip 2 VLT M1 acceptance testing 1995 - 4 Transporting the VLT mirror — 1993 — clip 1
Paranal aerial view1998c Transporting the VLT mirror — France 1993 — clip 4 Paranal aerial view 1998d La Silla history 1992 (part 5)
Paranal aerial view1998c Transporting the VLT mirror — France 1993 — clip 4 Paranal aerial view 1998d La Silla history 1992 (part 5)
VLT — ISAAC — 1996 — 1 Paranal aerial view 1991 a La Silla history 1992 (part 17) VLT — ISAAC — 1998 — 1
VLT — ISAAC — 1996 — 1 Paranal aerial view 1991 a La Silla history 1992 (part 17) VLT — ISAAC — 1998 — 1
VLT structure Paranal aerial view 1991b The New Technology Telescope (NTT) (part 1) La Silla history 1992 (part 3)
VLT structure Paranal aerial view 1991b The New Technology Telescope (NTT) (part 1) La Silla history 1992 (part 3)
Paranal aerial view 1997a Paranal aerial view 1997b VLT M1acceptance test 1995 — 3 The New Technology Telescope (NTT) (part 3)
Paranal aerial view 1997a Paranal aerial view 1997b VLT M1acceptance test 1995 — 3 The New Technology Telescope (NTT) (part 3)
Paranal aerial view Distant view of Paranal Paranal aerial view1994a VLT – ISAAC — 1996 — 2
Paranal aerial view Distant view of Paranal Paranal aerial view1994a VLT – ISAAC — 1996 — 2
Paranal aerial view1998a ESO 3.6-metre telescope in 1992 (part 8) Paranal aerial view 1998b Paranal aerial view1998g
Paranal aerial view1998a ESO 3.6-metre telescope in 1992 (part 8) Paranal aerial view 1998b Paranal aerial view1998g
The New Technology Telescope (NTT) (part 2) Paranal aerial view1995b Paranal aerial view 1997f La Silla history 1992 (part 2)
The New Technology Telescope (NTT) (part 2) Paranal aerial view1995b Paranal aerial view 1997f La Silla history 1992 (part 2)
Showing 3801 to 3900 of 4285
Send us your comments!
Subscribe to receive news from ESO in your language
Accelerated by CDN77
Terms & Conditions
Cookie Settings and Policy

Our use of Cookies

We use cookies that are essential for accessing our websites and using our services. We also use cookies to analyse, measure and improve our websites’ performance, to enable content sharing via social media and to display media content hosted on third-party platforms.

You can manage your cookie preferences and find out more by visiting 'Cookie Settings and Policy'.

ESO Cookies Policy


The European Organisation for Astronomical Research in the Southern Hemisphere (ESO) is the pre-eminent intergovernmental science and technology organisation in astronomy. It carries out an ambitious programme focused on the design, construction and operation of powerful ground-based observing facilities for astronomy.

This Cookies Policy is intended to provide clarity by outlining the cookies used on the ESO public websites, their functions, the options you have for controlling them, and the ways you can contact us for additional details.

What are cookies?

Cookies are small pieces of data stored on your device by websites you visit. They serve various purposes, such as remembering login credentials and preferences and enhance your browsing experience.

Categories of cookies we use

Essential cookies (always active): These cookies are strictly necessary for the proper functioning of our website. Without these cookies, the website cannot operate correctly, and certain services, such as logging in or accessing secure areas, may not be available; because they are essential for the website’s operation, they cannot be disabled.

Cookie ID/Name
Description/Purpose
Provider (1st party or 3rd party)
Browser session cookie or Stored cookie?
Duration
csrftoken
XSRF protection token. We use this cookie to protect against cross-site request forgery attacks.
1st party
Stored
1 year
user_privacy
Your privacy choices. We use this cookie to save your privacy preferences.
1st party
Stored
6 months
_grecaptcha
We use reCAPTCHA to protect our forms against spam and abuse. reCAPTCHA sets a necessary cookie when executed for the purpose of providing its risk analysis. We use www.recaptcha.net instead of www.google.com in order to avoid unnecessary cookies from Google.
3rd party
Stored
6 months

Functional Cookies: These cookies enhance your browsing experience by enabling additional features and personalization, such as remembering your preferences and settings. While not strictly necessary for the website to function, they improve usability and convenience; these cookies are only placed if you provide your consent.

Cookie ID/Name
Description/Purpose
Provider (1st party or 3rd party)
Browser session cookie or Stored cookie?
Duration
Settings
preferred_language
Language settings. We use this cookie to remember your preferred language settings.
1st party
Stored
1 year
ON | OFF
sessionid
ESO Shop. We use this cookie to store your session information on the ESO Shop. This is just an identifier which is used on the server in order to allow you to purchase items in our shop.
1st party
Stored
2 weeks
ON | OFF

Analytics cookies: These cookies collect information about how visitors interact with our website, such as which pages are visited most often and how users navigate the site. This data helps us improve website performance, optimize content, and enhance the user experience; these cookies are only placed if you provide your consent. We use the following analytics cookies.

Matomo Cookies:

This website uses Matomo (formerly Piwik), an open source software which enables the statistical analysis of website visits. Matomo uses cookies (text files) which are saved on your computer and which allow us to analyze how you use our website. The website user information generated by the cookies will only be saved on the servers of our IT Department. We use this information to analyze www.eso.org visits and to prepare reports on website activities. These data will not be disclosed to third parties.

On behalf of ESO, Matomo will use this information for the purpose of evaluating your use of the website, compiling reports on website activity and providing other services relating to website activity and internet usage.

ON | OFF

Matomo cookies settings:

Cookie ID/Name
Description/Purpose
Provider (1st party or 3rd party)
Browser session cookie or Stored cookie?
Duration
Settings
_pk_id
Stores a unique visitor ID.
1st party
Stored
13 months
_pk_ses
Session cookie temporarily stores data for the visit.
1st party
Stored
30 minutes
_pk_ref
Stores attribution information (the referrer that brought the visitor to the website).
1st party
Stored
6 months
_pk_testcookie
Temporary cookie to check if a visitor’s browser supports cookies (set in Internet Explorer only).
1st party
Stored
Temporary cookie that expires almost immediately after being set.

Additional Third-party cookies on ESO websites: some of our pages display content from external providers, e.g. YouTube.

Such third-party services are outside of ESO control and may, at any time, change their terms of service, use of cookies, etc.

YouTube: Some videos on the ESO website are embedded from ESO’s official YouTube channel. We have enabled YouTube’s privacy-enhanced mode, meaning that no cookies are set unless the user actively clicks on the video to play it. Additionally, in this mode, YouTube does not store any personally identifiable cookie data for embedded video playbacks. For more details, please refer to YouTube’s embedding videos information page.

Cookies can also be classified based on the following elements.

Regarding the domain, there are:

As for their duration, cookies can be:

How to manage cookies

Cookie settings: You can modify your cookie choices for the ESO webpages at any time by clicking on the link Cookie settings at the bottom of any page.

In your browser: If you wish to delete cookies or instruct your browser to delete or block cookies by default, please visit the help pages of your browser:

Please be aware that if you delete or decline cookies, certain functionalities of our website may be not be available and your browsing experience may be affected.

You can set most browsers to prevent any cookies being placed on your device, but you may then have to manually adjust some preferences every time you visit a site/page. And some services and functionalities may not work properly at all (e.g. profile logging-in, shop check out).

Updates to the ESO Cookies Policy

The ESO Cookies Policy may be subject to future updates, which will be made available on this page.

Additional information

For any queries related to cookies, please contact: pdprATesoDOTorg.

As ESO public webpages are managed by our Department of Communication, your questions will be dealt with the support of the said Department.