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     
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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

Michelle Willebrands

Leiden Observatory

Netherlands

Jacob White

National Radio Astronomy Observatory

United States of America

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

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

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

Additional Siguatures

Lachlan Lancaster

Princeton University

United States of America

Charles Wilton

Berea College

United States of America

Benedetta Veronesi

ENS de Lyon

France

Alice Pisani

Princeton University

United States of America

Mauricio Vinasco

Universidad El Bosque

Colombia

Kelly Joaquina

Laboratoire d'astrophysique de Marseille

France

Michael Foley

Harvard University

United States of America

Sebastien Vievard

Subaru Telescope

United States of America

Michael Strauss

Princeton University Astrophysics Dept.

United States of America

Victoria DiTomasso

Center for Astrophysics | Harvard & Smithsonian

United States of America

Alwyn Wootten

National Radio Astronomy Observatory/University of Virginia

United States of America

Hassan Siddiqui

Astrophysical Sciences, Princeton

United States of America

Magdalena Siwek

Harvard University

United States of America

Eric Feigelson

Penn State University

United States of America

Rodrigo Cordova

Princeton University

United States of America

Rachael Beaton

Princeton University

United States of America

Cristóbal Sifón

Pontificia Universidad Católica de Valparaíso

Chile

Michael Garrett

Jodrell Bank Centre for Astrophysics

United Kingdom

Urmila Chadayammuri

Smithsonian Astrophysical Observatory

United States of America

Stevanus Kristianto Nugroho

ABC, NINS

Japan

James Di Francesco

National Research Council of Canada

Canada

Chantanelle Nava

Harvard University

United States of America

Diep Pham Ngoc

Vietnam National Space Center

Vietnam

Ignacio Mateos

Universidad de Cádiz

Spain

Dragan Salak

University of Tsukuba

Japan

Vincent Chambouleyron

Laboratoire d'Astrophysique de Marseille

France

Anca Constantin

James Madison University

United States of America

Florian Freistetter

Science Busters

Austria

Gilles Ferrand

RIKEN

Japan

Artem Koval

Astronomical Institute of the Czech Academy of Sciences

Czech Republic

Andreas Eberle

Sternwarte Stuttgart

Germany

Daniel Rouan

Observatoire de Paris

France

Derek Homeier

Förderkreis Planetarium Göttingen

Germany

Alexander Wagner

University of Tsukuba

Japan

Kohji Yoshikawa

University of Tsukuba

Japan

Emilio Zuniga

ASAFILE - Association of Amateur Astronomers of Leon

Nicaragua

Mikiya Takahashi

University of Tsukuba

Japan

Isabelle Breloy

1st Physics Institute, University of Cologne

Germany

Koki Otaki

University of Tsukuba

Japan

Satoshi Kikuta

University of Tsukuba

Japan

Sriram Swamynathan

University of Bonn

Germany

Casey McGrath

University of Wisconsin-Milwaukee

United States of America

Sérgio Sousa

Instituto de Astrofisica e Ciencias do Espaço

Portugal

Nasser Alkadi

Syrian Astronomical Asscocation

Syria

Jan Eberhardt

Max-Planck-Institut für Astronomie

Germany

Sanne Bloot

Leiden Observatory

Netherlands

Klaus Reinsch

Universität Göttingen

Germany

Amy Lovell

Agnes Scott College

United States of America

Vincent Guillet

Institut d'Astrophysique Spatiale

France

Chibueze Ndubuisi

Federal University of Technology Owerri, Imo state.

Nigeria

Institutional Endorsements

institutional endorsments

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Summer Milky Way, Thoreau, NM. J. Lowenthal

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