Discover the Night

International
Dark Sky Week 2021

Discover the Night
April 5–12

It may seem harmless, but light pollution has far-reaching consequences that are harmful to all living things. Effective outdoor lighting reduces light pollution, leading to a better quality of life for all. The dark sky movement is working to bring better lighting to communities around the world so that all life can thrive.

Join us this International Dark Sky Week to learn more about the movement, and discover the night where you live.

Get Updates

Cityscape to the Milky Way

A lot of the outdoor lighting used at night is inefficient, overly bright, poorly targeted, improperly shielded, and in many cases, completely unnecessary. This light and the electricity used to create it are being wasted because it spills into the sky rather than being focused on the objects and areas that people need illuminated.

Harmful effects on wildlife

Light pollution harms mammals, birds, amphibians, insects, and reptiles. It can decrease reproduction, disrupt migration, increase predation, and more.

Bad, better, best

Use outdoor lighting responsibly by only using it where it’s needed, when it’s needed, in the amount required, and no more. Make sure to use the lowest light level required, limit the amount of shorter wavelength (blue-violet) light, utilize controls (such as timers or motion sensors), and use shielding to target the light, so it does not spill beyond where it is needed.

Effective outdoor lighting

A wide variety of dark-sky-friendly lighting fixtures are vailable from manufacturers.

What is Light Pollution?

Any artificial light that is not needed is a pollutant that has serious and harmful consequences.

Light pollution can:

  • disrupt wildlife
  • impact human health
  • waste money and energy
  • contribute to climate change
  • block our view of the universe

Light pollution is increasing at 2x rate of population growth and 83% of the global population lives under a light-polluted sky.

Places & People

Protecting the night around the world

Explore the map below to learn more about the global dark sky movement. It provides a small snapshot of some of the wonderful International Dark Sky Places and extraordinary IDA Advocates working to protect the night worldwide. 

 
Within |

About Us

IDA protects the night from light pollution

Artificial light at night has revolutionized the way we live and work outdoors, but it has come at a price. When used indiscriminately, outdoor lighting can disrupt wildlife, impact human health, waste money, and energy, contribute to climate change, and block our view of the universe. 

The International Dark-Sky Association promotes win-win solutions that allow people to appreciate dark, star-filled skies while enjoying the benefits of responsible outdoor lighting.

Our Vision

The night sky, filled with stars, is celebrated and protected around the world as a shared heritage benefiting all living things.

Thank you to our brand partners for year-round support

Leading & Guiding partners

Musco Lighting
Grand Canyon National Park Lodges
The Home Depot

Sustaining & Ally partners

The Oasis at Death Valley
Earth Sun Moon
Deneb, The Stories
Selux Corporation

Outreach partners

Grand Canyon National Park Lodges
The Home Depot
IES
Audubon

Events

All around the world

Your Dark Sky Photos

Tag your Instagram posts with either #IDSW2021, #DarkSkyWeek, or #DiscoverTheNight.

Fantastica Margherita Hack 🙌🏼 ed è assolutamente vero siccome le stelle sono uno spettacolo gratuito da ogni punto della terra, facciamo di tutto per nasconderlo 😢 molto logico….

#cielopermettendoquotes #frasi #citazioni #pensieri #aforismi #quotes #frasedelgiorno #frasedellanotte #scoprilanotte #nottestellata #cielostellato #inquinamentoluminoso #milluminodimeno #illuminazioneresponsabile #darkskies #idsw2021 #discoverthenight #lightpollution #nightsky #wildlifeconservation #idadarksky #inquinamentoluminoso🚫 #margheritahack

Fantastica Margherita Hack 🙌🏼 ed è assolutamente vero siccome le stelle sono uno spettacolo gratuito da ogni punto della terra, facciamo di tutto per nasconderlo 😢 molto logico….

#cielopermettendoquotes #frasi #citazioni #pensieri #aforismi #quotes #frasedelgiorno #frasedellanotte #scoprilanotte #nottestellata #cielostellato #inquinamentoluminoso #milluminodimeno #illuminazioneresponsabile #darkskies #idsw2021 #discoverthenight #lightpollution #nightsky #wildlifeconservation #idadarksky #inquinamentoluminoso🚫 #margheritahack
...

31 0
Künstliche Lichtquellen bei Nacht können Bäume verwirren!

Beleuchtete Bäume können im Herbst ihre Blätter verspätet abwerfen, was mit Frostschäden, verminderten Abwehrkräften gegen Schädlinge und verkürzter, für den nächsten Austrieb jedoch benötigter Ruhephase einhergehen kann!

🍁🍂🍃🍁🍂🍃🍁🍂🍃

Artificial light at night can confuse trees!

Illuminated trees shed their leaves late in autumn, which can be accompanied by frost damage, reduced defenses against pests and a shortened resting phase, which is necessary for the next shoot!

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #gemeinsamfürdienacht #patendernacht #lichtverschmutzungistdoof #darkskies #underonesky #discoverthenight #protectthenight #lovedarkskies #turnyourlightsoff #rettetdienacht #starvingfordarkness #sterneschauen #nachthaltig #mirgehteinlichtaus #austria #autumn #herbst #fallingleaves #protecttrees #schutzfürbäume #bäume

Künstliche Lichtquellen bei Nacht können Bäume verwirren!

Beleuchtete Bäume können im Herbst ihre Blätter verspätet abwerfen, was mit Frostschäden, verminderten Abwehrkräften gegen Schädlinge und verkürzter, für den nächsten Austrieb jedoch benötigter Ruhephase einhergehen kann!

🍁🍂🍃🍁🍂🍃🍁🍂🍃

Artificial light at night can confuse trees!

Illuminated trees shed their leaves late in autumn, which can be accompanied by frost damage, reduced defenses against pests and a shortened resting phase, which is necessary for the next shoot!

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #gemeinsamfürdienacht #patendernacht #lichtverschmutzungistdoof #darkskies #underonesky #discoverthenight #protectthenight #lovedarkskies #turnyourlightsoff #rettetdienacht #starvingfordarkness #sterneschauen #nachthaltig #mirgehteinlichtaus #austria #autumn #herbst #fallingleaves #protecttrees #schutzfürbäume #bäume
...

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As we were leaving from Simos Beach, at the island of Elafonisos, we faced this beautiful tree "laying down" and the milky way core shining just above. We didn't miss any second, we set our equipment and we captured this image. It was so unexpected and so beautiful that made me believe that it was my favourite one.

Technical Details:
Nikon D3300
Tokina 11-16mm f2.8
Star Tracker Vixen Polarie

Single Exposure
(11 mm | ISO 1600 | f3.2 | 40 sec)

My profile at TWAN - Guest Gallery:
https://twanight.org/profile/thanos_paraskevopoulos_/

#elafonisos #simosbeach #milkyway #twan #nightsky #theastrodaily #natgeoyourshot #tree #yourshotphotograher #witns #nikonnofiter #youresa #underonesky #onepeopleonesky #saveournightsky #IDSW2021 #thanosp_photos

As we were leaving from Simos Beach, at the island of Elafonisos, we faced this beautiful tree "laying down" and the milky way core shining just above. We didn't miss any second, we set our equipment and we captured this image. It was so unexpected and so beautiful that made me believe that it was my favourite one.

Technical Details:
Nikon D3300
Tokina 11-16mm f2.8
Star Tracker Vixen Polarie

Single Exposure
(11 mm | ISO 1600 | f3.2 | 40 sec)

My profile at TWAN - Guest Gallery:
https://twanight.org/profile/thanos_paraskevopoulos_/

#elafonisos #simosbeach #milkyway #twan #nightsky #theastrodaily #natgeoyourshot #tree #yourshotphotograher #witns #nikonnofiter #youresa #underonesky #onepeopleonesky #saveournightsky #IDSW2021 #thanosp_photos
...

0 0
Natural darkness serves as an important biological cue. ⁣⁣
⁣⁣
Exposure to artificial light between 10am and 4pm suppress the release of dopamine in the human brain the next day. Dopamine plays a salient role in motivation, focus, and the ability to feel pleasure.⁣⁣
⁣⁣
Lighting that won’t do this: moonlight, firelight (including candles), and very dim ambient light 🌙⁣
⁣
⁣
⁣
⁣
#dopamine #darkskies #savethedark #discoverthenight #protectthenight #theworldatnight

Natural darkness serves as an important biological cue. ⁣⁣
⁣⁣
Exposure to artificial light between 10am and 4pm suppress the release of dopamine in the human brain the next day. Dopamine plays a salient role in motivation, focus, and the ability to feel pleasure.⁣⁣
⁣⁣
Lighting that won’t do this: moonlight, firelight (including candles), and very dim ambient light 🌙⁣




#dopamine #darkskies #savethedark #discoverthenight #protectthenight #theworldatnight
...

19 1
THE WORLD IS IN OUR HANDS🙂 

#walking #silenceday #zaraoutfit #monkeyinthecity #darkskyweek

THE WORLD IS IN OUR HANDS🙂

#walking #silenceday #zaraoutfit #monkeyinthecity #darkskyweek
...

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Featured photographer: nachthaltig 

Beautiful shot from Austria 🇦🇹 ! Thank you Simone for tagging us! 

Please visit the artist page and follow to support Women Shooting Stars ✨

・・・
🌌Going Home... 🌌

After biding farewell to Milkyway(s Core) 🤩 What a season! See you again in 2022!!

⚠️ And when you're outside at night, never forget: use as little light as possible, as short as possible and warm/red light sources if possible 🙏

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #gemeinsamfürdienacht  #underonesky #discoverthenight #protectthenight #turnyourlightsoff #rettetdienacht #starvingfordarkness #sterneschauen #nachthaltig #mirgehteinlichtaus #austria 
#idadarksky #womeninastro #passioneastrofotografia #milkyway_nightscape_ #women_shooting_stars #dreamfulmilkyway
#igworldmilkyway #bestdarkphoto #sigmaphoto #NikonEurope #unsernoe #mostviertel #nightskyphotography #nightscapephotography #milchstraßenfotografie

Featured photographer: nachthaltig

Beautiful shot from Austria 🇦🇹 ! Thank you Simone for tagging us!

Please visit the artist page and follow to support Women Shooting Stars ✨

・・・
🌌Going Home... 🌌

After biding farewell to Milkyway(s Core) 🤩 What a season! See you again in 2022!!

⚠️ And when you're outside at night, never forget: use as little light as possible, as short as possible and warm/red light sources if possible 🙏

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #gemeinsamfürdienacht #underonesky #discoverthenight #protectthenight #turnyourlightsoff #rettetdienacht #starvingfordarkness #sterneschauen #nachthaltig #mirgehteinlichtaus #austria
#idadarksky #womeninastro #passioneastrofotografia #milkyway_nightscape_ #women_shooting_stars #dreamfulmilkyway
#igworldmilkyway #bestdarkphoto #sigmaphoto #NikonEurope #unsernoe #mostviertel #nightskyphotography #nightscapephotography #milchstraßenfotografie
...

0 0
🏳️‍🌈🏳️‍⚧️YOU LOVELY LOT 🥰🤩
I am totally flabbergasted (was that the word michellevisage ?) and just totally in love with y’all. So grateful for the support during #Worldpride2021 and the new release of #DISCOVERTHENIGHT (link in bio - you know the drill)

An other ”not to secret” release on it’s way and then time for the BIG BANG… 🔥🔥🔥

🏳️‍🌈🏳️‍⚧️Video clips: #Worldpride copenhagenpride stockholmpride cph2021 malmopride 🏳️‍🌈🏳️‍⚧️

🙋‍♂️
🎉
😘
#londonlife #gaylondon #londongay #pop  #gaypop #aswedeinlondon #mello #eurovision #esc #swedishpop #scandipop scandipop lgbtmusic musiclgbt  outmagazine attitudemag 
#instagay #pride #gaysinger #addictedtodrag #scruff #gayswithkids #gayswithbeards #gayswithtattoos #gaybear #gaycub #followforfollowback #follow4followback #likeforlikes #likesforlike #likeforlikeback

🏳️‍🌈🏳️‍⚧️YOU LOVELY LOT 🥰🤩
I am totally flabbergasted (was that the word michellevisage ?) and just totally in love with y’all. So grateful for the support during #Worldpride2021 and the new release of #DISCOVERTHENIGHT (link in bio - you know the drill)

An other ”not to secret” release on it’s way and then time for the BIG BANG… 🔥🔥🔥

🏳️‍🌈🏳️‍⚧️Video clips: #Worldpride copenhagenpride stockholmpride cph2021 malmopride 🏳️‍🌈🏳️‍⚧️

🙋‍♂️
🎉
😘
#londonlife #gaylondon #londongay #pop #gaypop #aswedeinlondon #mello #eurovision #esc #swedishpop #scandipop scandipop lgbtmusic musiclgbt outmagazine attitudemag
#instagay #pride #gaysinger #addictedtodrag #scruff #gayswithkids #gayswithbeards #gayswithtattoos #gaybear #gaycub #followforfollowback #follow4followback #likeforlikes #likesforlike #likeforlikeback
...

9 1
For tbt, looking back at a late autumn sunrise from last year over Guilford Harbor. This was taken from the Guilford town dock, which is usually overrun at sunset with high school kids and people taking in the sunset. But at sunrise, selfishly, I love that I get the scene to myself ☀️ 

#localconnecticut #ctviews #visitct #raw_newengland #bestofthenutmegstate #bestofconnecticut #onlyinconnecticut #newenglandcharm #ignewengland #newenglandphotography #connecticut_igers #naturalnewengland #scenesofct #raw_seasons #ig_ruralamerica #newenglandstyle #raw_historic #madisonct #guilfordct #ctshoreline #shoreline_ct #newenglandwithlove #yes_busa #connecticutphotographer #discoverthenight

For tbt, looking back at a late autumn sunrise from last year over Guilford Harbor. This was taken from the Guilford town dock, which is usually overrun at sunset with high school kids and people taking in the sunset. But at sunrise, selfishly, I love that I get the scene to myself ☀️

#localconnecticut #ctviews #visitct #raw_newengland #bestofthenutmegstate #bestofconnecticut #onlyinconnecticut #newenglandcharm #ignewengland #newenglandphotography #connecticut_igers #naturalnewengland #scenesofct #raw_seasons #ig_ruralamerica #newenglandstyle #raw_historic #madisonct #guilfordct #ctshoreline #shoreline_ct #newenglandwithlove #yes_busa #connecticutphotographer #discoverthenight
...

7 0
🌌Going Home... 🌌

After biding farewell to Milkyway(s Core) 🤩 What a season! See you again in 2022!!

⚠️ And when you're outside at night, never forget: use as little light as possible, as short as possible and warm/red light sources if possible 🙏

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #gemeinsamfürdienacht  #underonesky #discoverthenight #protectthenight #turnyourlightsoff #rettetdienacht #starvingfordarkness #sterneschauen #nachthaltig #mirgehteinlichtaus #austria 
#idadarksky #womeninastro #passioneastrofotografia #milkyway_nightscape_ #women_shooting_stars #dreamfulmilkyway
#igworldmilkyway #bestdarkphoto #sigmaphoto #NikonEurope #unsernoe #mostviertel #nightskyphotography #nightscapephotography #milchstraßenfotografie

🌌Going Home... 🌌

After biding farewell to Milkyway(s Core) 🤩 What a season! See you again in 2022!!

⚠️ And when you're outside at night, never forget: use as little light as possible, as short as possible and warm/red light sources if possible 🙏

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #gemeinsamfürdienacht #underonesky #discoverthenight #protectthenight #turnyourlightsoff #rettetdienacht #starvingfordarkness #sterneschauen #nachthaltig #mirgehteinlichtaus #austria
#idadarksky #womeninastro #passioneastrofotografia #milkyway_nightscape_ #women_shooting_stars #dreamfulmilkyway
#igworldmilkyway #bestdarkphoto #sigmaphoto #NikonEurope #unsernoe #mostviertel #nightskyphotography #nightscapephotography #milchstraßenfotografie
...

15 2
In astrophotography you always expect the unexpected; there so many phenomena that are possible to happen and we are able to capture them, even without knowing them. In this case I was extremely lucky; while I was capturing the milky way above the island of Hydra, I captured also a meteor at the galactic center. This unexpected phenomenon, eventually, made this image even better adding an extra element into my frame. This small detail reminds me why night sky is such an incredible subject to capture.
9/9/2021

Technical Details:
Single Exposure
Nikon D750
Nikon 20mm f1.8 G
Star Tracker Vixen Polarie (Half Speed)

My profile at TWAN - Guest Gallery:
https://twanight.org/profile/thanos_paraskevopoulos_/

#twan #milkyway #nightsky #natgeoyourshot  #meteor #yourshotphotographer #createyourlight #underonesky #onepeopleonesky #idsw2021 #astrophotography #youresa #nikonnofilter #nikoneurope #d750 #theastrodaily #saveournightsky #thanosp_photos

In astrophotography you always expect the unexpected; there so many phenomena that are possible to happen and we are able to capture them, even without knowing them. In this case I was extremely lucky; while I was capturing the milky way above the island of Hydra, I captured also a meteor at the galactic center. This unexpected phenomenon, eventually, made this image even better adding an extra element into my frame. This small detail reminds me why night sky is such an incredible subject to capture.
9/9/2021

Technical Details:
Single Exposure
Nikon D750
Nikon 20mm f1.8 G
Star Tracker Vixen Polarie (Half Speed)

My profile at TWAN - Guest Gallery:
https://twanight.org/profile/thanos_paraskevopoulos_/

#twan #milkyway #nightsky #natgeoyourshot #meteor #yourshotphotographer #createyourlight #underonesky #onepeopleonesky #idsw2021 #astrophotography #youresa #nikonnofilter #nikoneurope #d750 #theastrodaily #saveournightsky #thanosp_photos
...

0 2
Before the rain…

Before the rain… ...

0 1

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