Dark and Quiet Skies

An IAU Global Outreach Project

Overview

The Dark and Quiet Skies Global Outreach Project raises awareness about the need to preserve dark and quiet skies. These two elements – dark and quiet – go hand-in-hand but refer to two different types of interference. Dark sky protection refers to the abatement of light pollution caused by artificial light at night by regional and national policy and law, in addition to public awareness. More recently, dark sky protection has also included the protection of the night sky from optical and infrared impacts (such as trails seen in images) resulting from the growing number of satellites in Low Earth Orbit. On the other hand, quiet sky protection refers to the threat posed by the radio interference of the same satellite constellations. The threats related to satellites are the primary concern of our partner, the IAU Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference (CPS).

Through this project, people will learn about the importance of dark and quiet skies for human culture, heritage, and health, in addition to the health of our ecosystems and the importance of dark and quiet skies for astronomy research.

Be sure to check back here for updates on our events and programmes during the month of May!

OAO Events

Smartphone Astrophotography Virtual Exhibit

When: 27 & 28 May 2024

Where: Click here to register!

In May 2023, the International Astronomical Union Office for Astronomy Outreach held a series of workshops on smartphone astrophotography. The same year, we collaborated with the IAU Office of Astronomy for Education to sponsor a category of their astrophotography competition dedicated to photographs of the sky taken with smartphones or mobile devices. This year, we worked with The Future of Meetings to build a virtual exhibition space that honours the contributions of the winners and honourable mentions for this category. Just like browsing through a physical art museum, you can admire the artwork, discuss with other participants, and learn about the photographers and their work – perhaps from the photographers themselves – all while minimising your carbon footprint. We hope you'll join us in exploring the importance of dark sky preservation through smartphone astrophotography!

Partners: OAE

Ongoing Activities

The IAU OAO and the IAU National Outreach Coordinators (NOCs) participate in various activities to raise awareness of the importance of dark and quiet skies. Join an event hosted or supported by one of our 120+ NOCs, IAU Dark Skies Ambassadors or other organisers from the astronomy outreach community around the world.

Global Light Pollution Initiatives Survey

We are gathering information about how countries around the world approach the fight against light pollution. In this survey, we ask you to provide some brief information about initiatives happening in your country (either led by you or someone else) and provide practical ways people can get involved in this effort. This could include changing their light bulbs to warm LEDs, signing a petition, participating in a town hall, or joining a lobbying group -- whatever you think would be most relevant for your community. We will use this information as part of a global resource on light pollution and as a way to promote global initiatives to protect our dark and quiet skies.

Take the Pledge! Become a Dark and Quiet Sky Protector!

How to become a Dark and Quiet Sky Protector in three simple steps:

What will you do in your community to protect our dark and quiet sky? Write down your response to this question and make a commitment to defending our dark and quiet skies on this form. If you cannot access Google for any reason, email us at public@oao.iau.org, and we will provide you with an alternate solution.
When you submit your written commitment, you will receive an email template to send to your local legislator (for example, a mayor, community leader, governor, and so on) urging them to join in the fight against light pollution.
You will also receive a certificate from the OAO declaring you a Dark and Quiet Sky Protector. We hope you display it proudly!

Partners: CPS, DarkSky International

Events Calendar

Planning your own event on light pollution abatement and dark sky protection? Maybe you’re planning a star party for the people in your neighbourhood or a mobile planetarium show with a local astronomy club. Whatever your plans are, share them with us in our Events Calendar and become a part of the OAO community! Hosts are invited to indicate in the description if others are free to join.

OAO Toolkit

Do you need some ideas for your dark sky event? You can find them in the Office for Astronomy Outreach Activity Toolkit. If you have developed or know of any astronomy outreach activity format that engages people on the topics of light pollution and dark and quiet sky protection, please share it with the community.

Join Our Social Media Campaign

Follow the OAO on X, Facebook and LinkedIn to learn more about light pollution, satellite constellation interference, and the impacts of light pollution, in addition to sharing resources, events and more! And don’t forget to join the conversation by using the hashtag #DarkAndQuietSkies.

Other programmes and resources endorsed or partners of IAU OAO

UNESCO International Day of Light

The IAU is a media partner for the annual International Day of Light on 16 May. Organised by UNESCO, this day honours the role of light in our lives.

Learn more about the International Day of Light here.

International Dark Sky Week

The IAU OAO is a media partner with the International Dark Sky Week. The week is hosted by the DarkSky International to raise awareness about light pollution’s many negative effects.

Globe@Night Citizen Science Campaign

The IAU OAO proudly endorses the monthly Globe@Night citizen science campaign. This project gathers data from volunteer observers to track the impact of light pollution over time. Contributing occurs for a one-week period each month and requires no more than your eyes and an internet connection.

Learn how you can participate here.

Globe at Night - Sky Brightness Monitoring Network (GaN-MN)

Globe at Night - Sky Brightness Monitoring Network (GaN-MN) is a special project that extends the Globe at Night project through a global network of commercially-available sky-brightness meters for long-term monitoring of light pollution. The project is conducted in partnership with the University of Hong Kong.

Learn how to join here.

Dark Skies for All

Dark Skies for All aims to raise awareness of the preservation of quiet and dark skies. The project capitalises on student engagement and IAU Dark Skies Ambassadors network to further protection of the night sky against light pollution. The project is a legacy of the IAU centenary and is done in partnership with the Inter-University Centre for Astronomy and Astrophysics (IUCAA) in India.

Learn more about Dark Skies for All here.

IAU Dark Skies Ambassadors

The IAU Dark Skies Ambassadors programme invites keen enthusiasts worldwide to be dark sky advocates. The ambassadors organise projects and events in their communities to locally promote dark skies. Joining the programme allows you to join a supportive environment of peers and provides international visibility of your efforts.

Learn more about the IAU Dark Skies Ambassadors here.

Dark Skies Rangers

The Dark Skies Rangers programme provides resources for primary and early secondary school kids to learn about light pollution and go out to measure light pollution in their own communities. Resources include lesson plans and worksheets for teachers set to US education standards.

Learn more about Dark Skies Rangers.

IAU Publications

IAU Light Pollution brochure (EN). Translations are available in Arabic, Chinese (Traditional), Bahasa Indonesia, Bahasa Melayu, Filipino, Polish, Portuguese, Spanish, and Turkish.
IAU Theme on light pollution.
IAU Theme on satellite constellations.
Online Workshop Dark and Quiet Skies for Science and Society: Report and recommendations.
Please see the IAU Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference, IAU Commission B7, and Working Group on Dark and Quiet Skies webpages for more information on IAU actions regarding dark and quiet skies.

The OAO would like to thank the involvement of its many partners in this project.

Outreach Partners: Organisations with which we have an ongoing collaboration to produce outreach opportunities for our community of NOCs and people worldwide. If you would like to become an outreach partner, please contact public@oao.iau.org

IAU Office of Astronomy for Education (OAE)

CPS

International Day of Light

DarkSky International

Hong Kong University (HKU)

Media Partners: Organisations with which we have a mutual agreement to share and disseminate content. If you are interested in becoming a media partner, please contact public@oao.iau.org

IAU Office of Astronomy for Education (OAE)

CPS