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.

Goodnight Milky Way core…
.
.
.
#anzaborrego #castateparks #clarklake #cracks  #milkywaychasers #milkyway  #longexposure  #nightphotography #earthfocus #astrophotography #natgeospace #yourshotphotographer #sonyimages #sdhikes #visitsandiego  #52weeksofnature #visitcalifornia #hikingbangers #nightscaper #sonyalpha #bealpha #hikesandiego #idadarksky #photopills #createnomatterwhat #adorama #idsw2021 #idadarksky #darskyweek #discoverthedark #sonya7siii

Goodnight Milky Way core…
.
.
.
#anzaborrego #castateparks #clarklake #cracks #milkywaychasers #milkyway #longexposure #nightphotography #earthfocus #astrophotography #natgeospace #yourshotphotographer #sonyimages #sdhikes #visitsandiego #52weeksofnature #visitcalifornia #hikingbangers #nightscaper #sonyalpha #bealpha #hikesandiego #idadarksky #photopills #createnomatterwhat #adorama #idsw2021 #idadarksky #darskyweek #discoverthedark #sonya7siii
...

34 2
🌌Take a short break in scrolling, doing, planning, thinking. Breathe in and breath out 🌌

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #lichtverschmutzungistdoof #gemeinsamfürdienacht #darkskies #underonesky #discoverthenight #protectthenight #lovedarkskies #turnyourlightsoff #rettetdienacht #starvingfordarkness #sterneschauen #nachthaltig #mirgehteinlichtaus #austria #idadarksky #womeninastro #passioneastrofotografia  #women_shooting_stars #dreamfulmilkyway
#igworldmilkyway #sigmaphoto #milkyway #milchstraßeösterreich #milchstraßenfotografie #sitzenberg #nikonaustria

🌌Take a short break in scrolling, doing, planning, thinking. Breathe in and breath out 🌌

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #lichtverschmutzungistdoof #gemeinsamfürdienacht #darkskies #underonesky #discoverthenight #protectthenight #lovedarkskies #turnyourlightsoff #rettetdienacht #starvingfordarkness #sterneschauen #nachthaltig #mirgehteinlichtaus #austria #idadarksky #womeninastro #passioneastrofotografia #women_shooting_stars #dreamfulmilkyway
#igworldmilkyway #sigmaphoto #milkyway #milchstraßeösterreich #milchstraßenfotografie #sitzenberg #nikonaustria
...

20 1
Space is the canvas, the core is the colour palette, and the stars are the extra touch that makes it look like a beautiful painting.

Thank you ekatsillisphotography for the description 🙏🙏!

📷Sony a7iii (unmod)
🔭Samyang 135mm f/2.0
⚙️Skywatcher Star adventurer

10x 151", f/2.0, iso 640

Bottle 3

.
.
.
#nightsky #nightimages #stars #cosmos #nasa #starphotography #astrophoto #universe
#astro_photography_ #universetoday #natgeospace #astrography #milkywayphotography 
#nightskyphotography #spacephotography #astrofotografia #milkywayphoto 
#astrophotos #youresa #skyatnight #backyardastronomy #pixinsight #spacetoday 
#witns #greekstagram #twan #apod #theastrodaily #idsw2021 #thestarrynight

Space is the canvas, the core is the colour palette, and the stars are the extra touch that makes it look like a beautiful painting.

Thank you ekatsillisphotography for the description 🙏🙏!

📷Sony a7iii (unmod)
🔭Samyang 135mm f/2.0
⚙️Skywatcher Star adventurer

10x 151", f/2.0, iso 640

Bottle 3

.
.
.
#nightsky #nightimages #stars #cosmos #nasa #starphotography #astrophoto #universe
#astro_photography_ #universetoday #natgeospace #astrography #milkywayphotography
#nightskyphotography #spacephotography #astrofotografia #milkywayphoto
#astrophotos #youresa #skyatnight #backyardastronomy #pixinsight #spacetoday
#witns #greekstagram #twan #apod #theastrodaily #idsw2021 #thestarrynight
...

55 4
One of my favorite New England cottages on a rainy and dreary start to the first fall weekend. I spotted the sunrise trying to peek through the clouds, but by the time I arrived on site, the rain was coming down pretty steadily. Despite the gloom, this little cottage always brightens up my day 😊 

#sunset #goldenhour #coastalconnecticut #naturalconnecticut #connecticutcoast #longislandsound #coastalliving #ig_connecticut #mynewengland #ig_newengland #newengland #sunsetbeach #explorenewengland #newenglandliving #nauticalimages #CTvisit #localconnecticut #yes_busa #connecticut_igers #ScenicCT #newenglandphotography #newenglandpictures #newengland_igers #raw_newengland #mynewengland #naturalnewengland #madisonct #raw_waters #madisonct #discoverthenight

One of my favorite New England cottages on a rainy and dreary start to the first fall weekend. I spotted the sunrise trying to peek through the clouds, but by the time I arrived on site, the rain was coming down pretty steadily. Despite the gloom, this little cottage always brightens up my day 😊

#sunset #goldenhour #coastalconnecticut #naturalconnecticut #connecticutcoast #longislandsound #coastalliving #ig_connecticut #mynewengland #ig_newengland #newengland #sunsetbeach #explorenewengland #newenglandliving #nauticalimages #CTvisit #localconnecticut #yes_busa #connecticut_igers #ScenicCT #newenglandphotography #newenglandpictures #newengland_igers #raw_newengland #mynewengland #naturalnewengland #madisonct #raw_waters #madisonct #discoverthenight
...

1 0
Another dream world. ⭐️🌌
.
.
.
#dream #dreamworld #fierynightsky #dolomiti #dasolodinotte #milkyway #mountains #solitarysoul #fischleintal #inmezzoalbosco #longexposition #valfiscalina #valfiscalinalovers #anotherdreamworld #valfiscalinahike #longexpositionphoto #passionealtoadige #lamontagnacheamo #imieimomenti #dinottenelbosco #biscoincantato #nightphotography #nightphoto #liveintensely #animasolitaria #hiking #hikingadventures #discovertheworld #discoverthenight #mattiavalsecchiphotography

Another dream world. ⭐️🌌
.
.
.
#dream #dreamworld #fierynightsky #dolomiti #dasolodinotte #milkyway #mountains #solitarysoul #fischleintal #inmezzoalbosco #longexposition #valfiscalina #valfiscalinalovers #anotherdreamworld #valfiscalinahike #longexpositionphoto #passionealtoadige #lamontagnacheamo #imieimomenti #dinottenelbosco #biscoincantato #nightphotography #nightphoto #liveintensely #animasolitaria #hiking #hikingadventures #discovertheworld #discoverthenight #mattiavalsecchiphotography
...

100 2
Luca Mercalli: meteorologo, climatologo, divulgatore scientifico e accademico italiano. Qualcosa ne sa!!

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

Luca Mercalli: meteorologo, climatologo, divulgatore scientifico e accademico italiano. Qualcosa ne sa!!

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

1 0
Pretty Colors of the night sky 
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.

Distance to Earth: 1,470 light years
Radius: 50 light years
Constellation:Cygnus 
Shot on nikonindiaofficial  Nikon D850 and 200mm cropped to 50% 
Edited by astro_front_yard 

Tech Details:

Total: 50 shots at ISO 1600and 60 seconds each tracked using iOptron Skyguider pro Stacked in DSS and Processed in Photoshop 

#discoverthenight #india #deepspace #astrophotography #twanight
#milkywayphotography #throughyourlens #nikon #naturephotography #nightphotography #nebula #twan #yourshot_india #CNTGiveltAShot
#longexposure_shots #nightsky #summersky #darksky #astrophoto
#nightscaper #astrophotographyindia #nightskyphotography #milkywaychasers #cosmos
#stars #milkyway #astrophotographyindia #deepskyphotography #indianphotographyhub

Pretty Colors of the night sky
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.

Distance to Earth: 1,470 light years
Radius: 50 light years
Constellation:Cygnus
Shot on nikonindiaofficial Nikon D850 and 200mm cropped to 50%
Edited by astro_front_yard

Tech Details:

Total: 50 shots at ISO 1600and 60 seconds each tracked using iOptron Skyguider pro Stacked in DSS and Processed in Photoshop

#discoverthenight #india #deepspace #astrophotography #twanight
#milkywayphotography #throughyourlens #nikon #naturephotography #nightphotography #nebula #twan #yourshot_india #CNTGiveltAShot
#longexposure_shots #nightsky #summersky #darksky #astrophoto
#nightscaper #astrophotographyindia #nightskyphotography #milkywaychasers #cosmos
#stars #milkyway #astrophotographyindia #deepskyphotography #indianphotographyhub
...

0 3
The humidity was too high for astro most of the week but Friday night, my last night in OBX, conditions were nearly perfect. Some clouds lingered from sunset but they were polite enough to move to the side of the milky way so I could get this capture! I've wanted this one since last year's trip

The humidity was too high for astro most of the week but Friday night, my last night in OBX, conditions were nearly perfect. Some clouds lingered from sunset but they were polite enough to move to the side of the milky way so I could get this capture! I've wanted this one since last year's trip ...

59 2
SORRY BABES! I didn’t mean to ghost you all 🙈
The week with #worldpride2021 #cph2021 was 100% action with 8 gigs (or was it 9?) on 6 days and since then it has just been 24/7 with everything starting up again after lockdowns. And just like that we are in SEPTEMBER! Crazy, right?! But it feels so good to be back in flow and to be working for real again. I promise to tell you all about what’s coming up and also share some photo dumps from worldpride the coming days. But first… some sleep! See ya’ll tomorrow and meanwhile, feel free to listen to my brand new worldwide release of Discover The Night! Link in bio. (Written by lexpeter reeveswatson and vinnyvero )
Kisses and love,
J
📸: From promo shoot Discover The Night (2021) by L Handske
🏳️‍🌈
🏳️‍⚧️
🇬🇧
🇸🇪
#spotifyplaylist lgbtqmusicchart #photooftheday #discoverthenight #instagay #gaypop #newmusic #wellness #fitness #dance #zumba #crossfit #gayzumbainstructor #musicproduction #lgbtq #lgbtqartists #lgbtqmusicchart #lgbtqmusic #gaysingers #gaybear #gayswithkids #gayswithdogs #rpdr

SORRY BABES! I didn’t mean to ghost you all 🙈
The week with #worldpride2021 #cph2021 was 100% action with 8 gigs (or was it 9?) on 6 days and since then it has just been 24/7 with everything starting up again after lockdowns. And just like that we are in SEPTEMBER! Crazy, right?! But it feels so good to be back in flow and to be working for real again. I promise to tell you all about what’s coming up and also share some photo dumps from worldpride the coming days. But first… some sleep! See ya’ll tomorrow and meanwhile, feel free to listen to my brand new worldwide release of Discover The Night! Link in bio. (Written by lexpeter reeveswatson and vinnyvero )
Kisses and love,
J
📸: From promo shoot Discover The Night (2021) by L Handske
🏳️‍🌈
🏳️‍⚧️
🇬🇧
🇸🇪
#spotifyplaylist lgbtqmusicchart #photooftheday #discoverthenight #instagay #gaypop #newmusic #wellness #fitness #dance #zumba #crossfit #gayzumbainstructor #musicproduction #lgbtq #lgbtqartists #lgbtqmusicchart #lgbtqmusic #gaysingers #gaybear #gayswithkids #gayswithdogs #rpdr
...

261 1
“Nothing can cure the soul but the senses, just as nothing can cure the senses but the soul” // Oscar Wilde⁣
⁣
⁣
⁣
⁣
⁣
⁣
#senses #explorethesenses #discoverthenight #starbathing #nocturnal

“Nothing can cure the soul but the senses, just as nothing can cure the senses but the soul” // Oscar Wilde⁣






#senses #explorethesenses #discoverthenight #starbathing #nocturnal
...

5 0
... und Licht aus nach 22 Uhr wo möglich! Eigentlich ziemlich einfach, oder?

... and no light after 10 p.m. where possible. Quite simple, isn't it?

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #lichtverschmutzungistdoof #lichtverschmutzunggehtunsallean #patendernacht #gemeinsamfürdieumwelt #darkskies #darkskies4all #underonesky #globeatnight #earthnight #starvingfordarkness #discoverthenight #protectthenight #lovedarkskies #turnyourlightsoff #rettetdienacht #sterneschauen #nachthaltig #mirgehteinlichtaus #austria

... und Licht aus nach 22 Uhr wo möglich! Eigentlich ziemlich einfach, oder?

... and no light after 10 p.m. where possible. Quite simple, isn't it?

#Lightpollution #againstlightpollution #Lichtverschmutzung #gegenlichtverschmutzung #lichtverschmutzungistdoof #lichtverschmutzunggehtunsallean #patendernacht #gemeinsamfürdieumwelt #darkskies #darkskies4all #underonesky #globeatnight #earthnight #starvingfordarkness #discoverthenight #protectthenight #lovedarkskies #turnyourlightsoff #rettetdienacht #sterneschauen #nachthaltig #mirgehteinlichtaus #austria
...

3 0
Have a great weekend! Thank you kpmimages for this stunning picture. • kpmimages Sunset scene from the beach road in Madison. 

#sunset #goldenhour #coastalconnecticut #naturalconnecticut #connecticutcoast #longislandsound #coastalliving #ig_connecticut #mynewengland #ig_newengland #newengland #sunsetbeach #explorenewengland #newenglandliving #nauticalimages #CTvisit #localconnecticut #yes_busa #connecticut_igers #ScenicCT #newenglandphotography #newenglandpictures #newengland_igers #raw_newengland #mynewengland #naturalnewengland #madisonct #raw_waters #guilfordct #discoverthenight

Have a great weekend! Thank you kpmimages for this stunning picture. • kpmimages Sunset scene from the beach road in Madison.

#sunset #goldenhour #coastalconnecticut #naturalconnecticut #connecticutcoast #longislandsound #coastalliving #ig_connecticut #mynewengland #ig_newengland #newengland #sunsetbeach #explorenewengland #newenglandliving #nauticalimages #CTvisit #localconnecticut #yes_busa #connecticut_igers #ScenicCT #newenglandphotography #newenglandpictures #newengland_igers #raw_newengland #mynewengland #naturalnewengland #madisonct #raw_waters #guilfordct #discoverthenight
...

21 0

Support Dark Skies!

Can you pitch in a few dollars a month to protect the night? Support the International Dark-Sky Association by becoming an IDA monthly member today. When you join our monthly giving club, you will receive a special Nighthawk magnet.

Buy a T-Shirt!

Printed in small batches. Lots of styles and sizes available. Proceeds benefit International Dark-Sky Association.