
Map of CTA's Location at Paranal

ESCAPE logo

Raman fibre laser

Earth Rotation (Nepal, Himalayas)

The red giant star π1 Gruis in the constellation of Grus

ESO Live Video Streaming

CAN PAK, winner of the EUCYS special prize for astronomy and space physics, donated by ESO

DG Tim de Zeeuw

VLT observations of the light curve of TRAPPIST-1 during the triple transit of 11 December 2015

Green power comes to La Silla

Wide-field view of the sky around the exotic binary star system AR Scorpii

Netherlands Foreign Minister visits Paranal

Wide-field view of the sky around the red giant star L2 Puppis

Image still from the planetarium show "From Earth to the Universe"

Image still from the planetarium show "From Earth to the Universe"

Image still from the planetarium show "From Earth to the Universe"

Image still from the planetarium show "From Earth to the Universe"

Image still from the planetarium show "From Earth to the Universe"

Image still from the planetarium show "From Earth to the Universe"

Image still from the planetarium show "From Earth to the Universe"

Image still from the planetarium show "From Earth to the Universe"

Image still from the planetarium show "From Earth to the Universe"

Workshop ESO in the 2020s

Cover of The Messenger No. 157

Merging galaxies in the distant Universe through a gravitational magnifying glass

The front of the ESO Supernova Planetarium & Visitor Centre

Cover of The Messenger No. 156

Rick Astley during his visit to ESO Office in Santiago

Artist's impression of the Milky Way

Technology Division Office staff

La Residencia

Adaptive optics at the ESO 3.6-m telescope

Unpacking a VLT mirror after transportation

VLT mirror traveling by boat

Roundabout during VLT mirror transportation

REOSC managers during mirror transportation

Roundabout route

VLT mirror en route to REOSC

VLT mirror travelling by road

Slow but steady

Steady as she goes

Group photo of the REOSC team

Second meeting of the ESO Council at the Observatoire de Haute Provence

Toconao church

Early La Silla

The President of Austria, Heinz Fischer and his wife Margit Fischer are shown the book "Voices from the Universe"

Massimo Tarenghi is awarded Chilean nationality by special grace

Plate copying machine at CERN

Two competitions for ESO's 50th anniversary

CCD calibrations

X-Shooter screen

La Silla painting

ESO@50 scientific workshop poster

The Danish 0.5-metre telescope at La Silla

Developing plates at the Sky Atlas Laboratory

Planets shepherding material into a narrow ring around Fomalhaut

Poster of Café & Kosmos 10 April 2012

Interview during VLT first light

Visit of the Chilean ambassador to Germany

VLT mirror shipped to Chile

Eclipse

ESO Virtual Tours 360°

The ESO Top 100 Images iPad App screenshot

A giant mirror cell for a giant mirror (1996)

Astronomy enthusiast Igor Chekalin from Russia

Screenshot of Virtual Tours v2.0

Raman fibre laser

Digitized Sky Survey image of the double star HD 87643

The APP optics

IPP site (obsolete)

ALMA work at the NRAO Technology Center

ALMA correlator Tunable Filter Bank prototype

ESO 3.6-metre telescope and TAROT at La Silla

Assembling the ESO 1-metre telescope

Assembling the ESO 1-metre telescope

Assembling the ESO 1-metre telescope

The arrival of the ESO 1-metre telescope

The arrival of the ESO 1-metre telescope

The arrival of the ESO 1-metre telescope

ESO workshop on 20 Years of Adaptive Optics

The VISTA telescope pier

GalileoMobile completes exciting journey

Arrival of the VISTA infrared camera

The VISTA Surveys

The 4.1 m diameter VISTA main mirror

The detectors inside the VISTA camera

Exhibition at the Deutsches Museum in Munich

OWL conference 2005

VLT M1 mirror

Science Day 2002

VLT M1 mirror

VLT M1 mirror

VLT M1 production at Schott

Science Day 2001

IVOA-meeting at the ESO Headquarters

Universe Awareness meeting May 2005

X-shooter ready for action

VLT M1 mirror cell

VLT 2nd Generation Instrumentation meeting

Rencontres du Ciel et de l'Espace 2002

PPARC visit October 2005

Rencontres du Ciel et de l'Espace 2002

VLT M1 mirror

Universe Awareness meeting May 2005

Rencontres du Ciel et de l'Espace 2002

Universe Awareness meeting May 2005

VLT M1 production at Schott

PPARC visit October 2005

VLT M1 mirror cell

VLT M1 mirror cell

OECD Astronomy Workshop December 2003

VLT M1 mirror

Science Day 2004

Polishing the VLT M1

VLT M1 mirror

OECD Astronomy Workshop December 2003

Science Day 2003

Science Day 2005

The OCam camera – A camera that outpaces twinkling stars

Measurements of HD 40307

Light-curve of GRB 060505

The European Extremely Large Telescope

Phase folded measurements of HD 69830

Observation techniques of the Baade-Wesselink method

AVO windows with obscured quasar image

Two-dimensional spectra of Abell 1835 IR1936

Spectra of some of the most distant galaxies known

Visual spectra of hypernova in GRB 030329

VLTI configuration for measurements of Achernar

Radial velocity curve of HD 47536

Spectrum of HII region -014+081 in NGC 4254

Sample integral field units at FLAMES

Stellar motions at the centre of NGC 1808

Acoustic spectrum of Alpha Centauri A

The shape of the filament

A VLT spectrum of EROS-BLG-2000-5

HD 80606: a giant planet in an extremely elongated orbit

Optical spectrum of brown dwarf TWA-5B

Lyman-alpha Forest at z~2.0 in quasar spectrum

CO emission spectra for Centaurus A

Spectrum of methane brown dwarf

i Horologii - radial velocity variations

Spectrum of stars in NGC 6822 and the Milky Way galaxy

Spectrum of arc in cluster 1ESO657-558 (z=3.23)

Photometric redshift of extremely red galaxy

Infrared spectrum of radio galaxy MRC 0406-244

A glimpse into the time before quasars were born

First spectrum of comet Hyakutake

Minor planet (4015) / comet Wilson–Harrington

First optical images of the "invisible" counter-jet in giant galaxy M87

The SS-433 system (artist's impression)

Band 2 receiver lens

Inauguration of the Paranal-Armazones photovoltaic plant

Mariya Lyubenova

ESO astronomer Mariya Lyubenova

Science liaison Mariya Lyubenova

The ELT Prefocal Station contract ceremony

Galaxy cluster RCS2 032727-132623 (uncropped)

ALMA recibe premio por su aporte al progreso del Chile

ESO Music Ambassador: Toomas Erm

Space Scoop comic contest

The barcode of the Sun

ESO Supernova site

ESO Supernova site

ESO Supernova Planetarium & Visitor Centre second floor

Extra small telescopes

Café & Kosmos 12 November 2013

One small part of SPHERE

DT analysis at La Silla.

DT analysis at La Silla

DT analysis at La Silla

Echelle spectrograph with Bowens camera, 1968

Chile summit, 1963

Sleepless in Santiago

Breaking ground for La Silla

VLT first light press conference

VLT first light press conference

Presentations during VLT first light press conference

First electricity at La Silla

Cover of The Messenger No. 148

Storage hall

The Submillimeter Telescope (SMT) at the Arizona Radio Observatory

Red sky at night

La Silla clouds

Charcoalmakers

La Silla site, 1965

Mirror coating

Centaurus A

Technical group at site testing in South Africa

Darkroom at the Sky Atlas Laboratory

Processing photographic plates

The ESO 1-metre telescope around 1969

Swiss 0.4-metre telescope

Max Alexander taking photos of the staff at ESO's Paranal Observatory

ESO exhibition in 1973

La Silla inauguration

Brave New World in the Messenger

ALMA Santiago central office

Prince Philippe of Belgium

Building ESO 3.6-metre telescope

ESO 3.6-metre telescope manufacturing

ESO’s Telescope Division is the first ESO department to move into offices on the CERN premises in Geneva

José Joaquín Pérez

The 1-metre Schmidt telescope at La Silla

Farid Char

Yoga room at Paranal

ESO Council 122nd Meeting — group photo

ESO Photo Ambassador José Francisco Salgado

ESO Photo Ambassador Gerhard Hüdepohl

Serge Brunier

Space Scoop logo

Gianluca Lombardi

Workers constructing EVALSO

ALMA antenna model 03

ELT-ENC-S

ELT-ENC-L

ALMA-ANT

ESO Photo Ambassadors Network

Yuri Beletsky

High-energy jet in NGC 3862

EAGLE for the ELT

The inner coma of comet Hyakutake

Mars Rover prototype at the Museum of the Atacama Desert

The MEDEA medal

Cover of Black Holes press kit

Map of Garching

Detail of the terrain in the ALMA area

ALMA correlator Tunable Filter Bank prototype

ALMA Digitizer prototype undergoing testing

Assembling the ESO 1-metre telescope

Assembling the ESO 1-metre telescope

Assembly of the ESO 1-metre telescope

Assembling the ESO 1-metre telescope

The arrival of the ESO 1-metre telescope

The VISTA mirror blank

The VISTA secondary mirror arriving at Paranal

The VISTA optical design in schematic form