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Open Letter

To Astronomy Departments, Institutions and Societies:
Adopt Sustanability as a Primary Goal.

We, astronomers, astrophysicists,
and global citizens…

  1. Recognize the urgency of the climate crisis and our impact on it.
  2. We also recognize that we have the power to change our current practices.
  3. We call on astronomical institutions worldwide to set an example for the field in mitigating our contribution to the climate crisis by:
  • Naming sustainability as a primary goal.
  • Putting in place specific sustainable practices to lower carbon emissions.
  • Clearly communicating these changes both to their own members and the general public.

Translations available in English, Dutch, Italian, German, Portuguese, Spanish, and Turkish.

PDF of Open Letter     
Press Inquires: Contact
PDF of Press Release
Link to Press Kit Media

More than 2859 astronomers from 81 countries

recognize that there is no Planet B!

Scroll down to see a full list of signees and institutional endorsements.

signatures per country map

Open Letter Team Signatures

Jacob White

National Radio Astronomy Observatory

United States of America

Michelle Willebrands

Leiden Observatory

Netherlands

Volker Ossenkopf-Okada

Universität zu Köln

Germany

Manisha Shrestha

Liverpool John Moores University

United Kingdom

Adam Stevens

International Centre for Radio Astronomy Research / The University of Western Australia

Australia

Abhijeet Borkar

Astronomický Ústav AV ČR

Czech Republic

Victoria Grinberg

Eberhard Karls Universität Tübingen

Germany

Toby Brown

National Research Council

Canada

Violette Impellizzeri

Leiden Observatory

Netherlands

Leo Burtscher

Leiden Observatory

Netherlands

Knud Jahnke

Max Planck Institute for Astronomy

Germany

Faustine Cantalloube

Laboratoire d'Astrophysique de Marseille

France

Gina Maffey

The Wildeor Foundation

Netherlands

Adrienne Cool

San Francisco State University

United States of America

Wendy Crumrine

University of Southern California

United States of America

Hannah Dalgleish

University of Namibia

United Kingdom

Sarah Deveny

Texas Tech University

United States of America

Debra Fischer

Yale University

United States of America

Gabriele Betancourt-Martinez

Institut de Recherche en Astrophysique et Planétologie

France

Abigail Frost

KU Leuven

Belgium

Tobias Beuchert

European Southern Observatory

Germany

Benjamin Gompertz

University of Birmingham

United Kingdom

Additional Siguatures

Tetyana Pitik

Niels Bohr Institute

Denmark

Martin Blažek

Astronomical Institute of the Czech Academy of Sciences

Czech Republic

Salvatore De Gaetano

INFN Bari

Italy

Florian Eppel

University of Würzburg

Germany

Manal Yassine

IRAP

France

José Rodrigues

INSTITUTE OF ASTROPHYSICS AND SPACE SCIENCES

Portugal

Mark McCaughrean

European Space Agency

Netherlands

Sylvain Chaty

University of Paris

France

Karin Lind

Stockholm University

Sweden

Sebastian Vider

Universität zu Köln

Germany

Aldo Morselli

INFN Roma Tor Vergata

Italy

Elena Masciadri

INAF - Istituto Nazionale di Astrofisica

Italy

Roberto Angioni

Italian Space Agency (ASI) / National Institute for Nuclear Physics (INFN)

Italy

Oliver Ricken

Max-Planck-Institute for Radioastronomy

Germany

Anna Piersimoni

INAF - Osservatorio Astronomico d'Abruzzo

Italy

Carlo Giocoli

INAF - OAS Bologna

Italy

Alain Blanchard

IRAP

France

Sherry Suyu

Max Planck Institute for Astrophysics / Technical University of Munich

Germany

Rovina Pinto

University of Cologne

Germany

Markus Pössel

Haus der Astronomie

Germany

Lola Balaguer-Nuñez

ICCUB-IEEC

Spain

David Gwynn

Dash Astro

United Kingdom

Martina Baratella

Università degli studi di Padova

Italy

Ilídio André Costa

Santa Bárbara School / Porto Planetarium - Ciência Viva Center / Institute of Astrophysics and Space Sciences

Portugal

Betelehem Bilata

Ethiopian Space Science and Technology Institute

Ethiopia

Bartholdi Paul

University of Geneva

Switzerland

Ruben Fedriani

Chalmers University of Technology

Sweden

Carina Persson

Chalmers University of Technology

Sweden

Eleonora Zari

Max Planck Institute for Astronomy

Germany

Emmanuel Lellouch

Observatoire de Paris

France

Cressida Cleland

University of Birmingham

United Kingdom

Eskil Varenius

Onsala Space Observatory

Sweden

Mathilde Espinasse

Université de Paris / CEA Saclay

France

Patricia Whitelock

SAAO & UCT

South Africa

Andrea Hidalgo Valadez

University of Oxford

United Kingdom

Orlin Koop

University of Groningen Kapteyn Institute

Netherlands

Domenico Bonaccini Calia

European Southern Observatory

Germany

Matt Nicholl

University of Birmingham

United Kingdom

Marc Horat

Verkehrshaus der Schweiz

Switzerland

Paul Woods

Nature Astronomy

United Kingdom

Jorge Villa

Laboratoire d'Astrophysique de Marseille

France

Claudia M. Raiteri

INAF-Osservatorio Astrofisico di Torino

Italy

Maria Teresa Lago

IAU General Secretary

France

Melanie Kaasinen

Max Planck Institute for Astronomy

Germany

Arianna Dolfi

Swinburne University of Technology

Australia

Franz Kirsten

Chalmers University of Technology

Sweden

Volodymyr Savchenko

University of Geneva

Switzerland

Wendy Williams

Leiden Observatory

Netherlands

Kieran Leschinski

University of Vienna

Austria

Bachar Wehbe

Institute of Astrophysics and Space Sciences

Portugal

Institutional Endorsements

institutional endorsments

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