River Murray International Dark Sky Reserve

River Murray International Dark Sky Reserve Official: River Murray International Dark Sky Reserve. Managed by MMLSA. Preserving pristine skies & unique nature for & . Lofty Ranges.

The River Murray International Dark Sky Reserve is an initiative of Mid Murray Landcare SA and is Australia's first Dark Sky Reserve. It covers more than 3,200 square kilometres from Bow Hill on the River Murray in the south, to Blanchetown in the north and west to the foothills of the Mt. The region is exceptionally dark, and readings above 21.9 are common. The area is known for its dry climate a

nd cloudless skies. Mid Murray Landcare SA worked closely with the Mid-Murray Council to establish the River Murray International Dark Sky Reserve, which received accreditation from the International Dark-Sky Association (IDA) in November 2019.

CELEBRATING LOCAL WINNERS & SMART TECH!A massive shout-out to our fantastic friends at DWARFLAB, who generously donated ...
26/08/2026

CELEBRATING LOCAL WINNERS & SMART TECH!

A massive shout-out to our fantastic friends at DWARFLAB, who generously donated 2 x DWARF Mini smart telescopes as raffle prizes for our community events back in June and August! 🌌🎁

We were absolutely thrilled to see both of these incredible prizes go to local community members. Smart telescopes are making deep-sky astrophotography portable, easy, and accessible for everyone—from backyard stargazers to local landholders.

If you've been curious about how these compact devices work, our brilliant Dark Sky partner and citizen science educator Matt Clarke ( Odyssey) has just dropped an in-depth side-by-side test comparing the DWARF Mini vs. DWARF 3!

Check out Matt’s full breakdown to see what these powerful tools can capture under South Australia's skies 👇
🎥 WATCH NOW:
👉 https://youtu.be/JUMLJ4ckMMg

Huge thanks to DWARF LAB for supporting our regional dark sky community, and to Matt Clarke for always sharing his time, energy, and expertise with us!

PROTECT THE NIGHT!True conservation doesn't stop at the ground—it goes all the way up to the stars. This week's fast fac...
24/08/2026

PROTECT THE NIGHT!

True conservation doesn't stop at the ground—it goes all the way up to the stars. This week's fast facts show the massive scale of what we protect together across the Mid Murray:

🖤 Fact #7 (The Wildlife Shield): Artificial outdoor lights heavily disrupt the natural breeding cycles, plant pollination, and migration paths of regional birds, animals, and insects.

🖤 Fact #8 (Our Massive Footprint): To safeguard these ecosystems, our reserve covers a massive 3,200 km². This spans 14 local townships from Blanchetown down to Tungkillo and Wongulla.

👇 Let's spread the word: Hit SHARE on this post to invite a Dark Sky buddy to check their outdoor lights tonight! ⬇️



📷 | RMIDSR

22/08/2026

Karlu Karlu (Devils Marbles) is now officially an International Dark Sky Sanctuary - the first in the Northern Territory and only the third in Australia 🌟

By day, the ancient granite boulders rise from the red earth of the Barkly. By night, with almost no light pollution, the milky way stretches across one of the Northern Territory’s most spectacular landscapes.

📍 Karlu Karlu (Devils Marbles), Northern Territory

🖤 THE MOONLIT LANDSCAPE SHOWCASE! 🖤Your weekend stargazing guide for the River Murray International Dark Sky Reserve (RM...
20/08/2026

🖤 THE MOONLIT LANDSCAPE SHOWCASE! 🖤

Your weekend stargazing guide for the River Murray International Dark Sky Reserve (RMIDSR), celebrating the historic township of Sedan.
🏨 LOCAL SHOUT-OUTS: Planning your trip? Make sure to drop by the friendly Sedan Hotel for great country hospitality and to grab your maps for the iconic Sedan Heritage Trail! While you are in town, support the Sedan Post Office & Local Store, and enjoy a self-drive tour admiring the beautiful, hand-built pioneer dry-stone walls lining the Keyneton-Sedan road.

SEDAN | 22 August 2026
Sunrise: 06:48 | Sunset: 17:50
Moonrise: 12:06 | Moonset: 03:31 (Sun AM)
Astronomical Twilight Ends: 19:11
Moon Phase: Waxing Gibbous 🌔 (~70% illumination)
Location: Sedan, SA | 34.58° S, 139.30° E

✨ [WEEKEND SNAPSHOT]

🌕 [The Moonlit Heritage Show (7:11 PM – 3:31 AM)]
Celebrate the moonlight! With the moon lighting up the night at a brilliant 70% from sunset onwards, the evening is a family photography dream. The high lunar light is positioned perfectly to illuminate the historic 19th-century buildings and stone fences, creating beautiful sharp shadows and brilliant horizons across the valley floor.

🌌 [The Pre-Dawn Star Window (3:31 AM Onwards)]
For the dedicated late-night star hunters, the moon dips below the western horizon in the early hours of Sunday morning. This opens up a pristine, 3-hour window of total dark-sky clarity, revealing a dense blanket of crisp stars until the morning twilight begins to break.

🖤

📷 Simon Deluca-Cardillo | RMIDSR

DARK SKY PARTNERS - MMLSA: Guardians of the Reserve!Celebrating Mid Murray Landcare SA (MMLSA), the dedicated managing e...
19/08/2026

DARK SKY PARTNERS - MMLSA: Guardians of the Reserve!

Celebrating Mid Murray Landcare SA (MMLSA), the dedicated managing entity that makes the River Murray International Dark Sky Reserve possible!

MMLSA’s team provides the essential governance, oversight, and day-to-day management required to maintain our world-class Gold Tier Status. They are the backbone of our dual mission, ensuring that is seamlessly integrated with , conserving over 6000 sq km of critical habitat below. Delivering in these key areas:

🌑 Governance & Compliance: They provide the essential daily management plan and securing the long-term accreditation required for our International Accrediation.

🌑 Conservation Leadership: Their stewardship ensures that protection of the dark skies is treated as an integrated component of regional land management and ecological health.

🌑 Community Link: Mid Murray Landcare SA is the key link between the Dark Sky Committee, local residents, and external partners.

To MMLSA: Thank you for your leadership and crucial commitment to habitat conservation, ensuring the 'Night Shift' ecosystem can flourish!

Astronomers have found evidence that our galaxy, the Milky Way, collided with another — the "Low-energy-Kraken-Heracles"...
18/08/2026

Astronomers have found evidence that our galaxy, the Milky Way, collided with another — the "Low-energy-Kraken-Heracles" galaxy — about 12 billion years ago.

A new study suggests one of the most significant clashes in the history of the Milky Way, dubbed the "Low-energy-Kraken-Heracles" merger, happened 12 billion years ago.

THE DEEPEST DARK!Ever wonder exactly where the absolute darkest spot in our region is, or how we look deep into the cosm...
17/08/2026

THE DEEPEST DARK!

Ever wonder exactly where the absolute darkest spot in our region is, or how we look deep into the cosmos? Let's check out our next two Gold-Tier fast facts:

🖤 Fact #5 (The Core Site): Swan Reach Conservation Park serves as the official 'core site'—meaning it is the absolute most protected, darkest slice of our entire reserve.

🖤 Fact #6 (See further): Our reserve proudly houses South Australia's largest privately owned telescope that is fully open to the public.

👇 Drop a comment below: Have you ever experienced a true Mallee night sky out at Swan Reach, or is it still on your bucket list? ⬇️



📷 David Hartley | RMIDSR

14/08/2026

Dark Sky Partners – The Forces Behind the Gold Tier

The River Murray International Dark Sky Reserve is more than a location; it is a dedicated commitment to conservation from the "Ground to the Stars."

Protecting 3,200 sq km of pristine night sky requires a powerful network of leaders. We are proud to stand alongside our 7 Visionary Dark Sky Partners—organisations that recognised early on that darkness is a resource worth saving for everyone.

Our Partners in Protection:
🌑 National Parks and Wildlife Service SA
🌑 Mid Murray Council
🌑 SA Power Networks
🌑 Mid Murray Landcare SA
🌑 Murray River Lakes & Coorong Tourism Alliance
🌑 Murraylands and Riverland Landscape Board
🌑 Australasian Dark Sky Alliance (ADSA)

The stars are bright because the partnership foundation is strong. Watch the video to see how these organisations collaborate to preserve our world-class dark skies for your future.

Tag a friend who needs to see the Milky Way in real life.

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🖤 THE TWILIGHT SHOWCASE! 🖤Right after sunset, look out across the river cliffs to catch a stunning three-way alignment: ...
13/08/2026

🖤 THE TWILIGHT SHOWCASE! 🖤

Right after sunset, look out across the river cliffs to catch a stunning three-way alignment: a beautiful, ultra-thin crescent moon setting right alongside a dazzlingly bright Venus and the sparkling star Spica. As winter begins to transition toward spring, it is the perfect evening to step outside with the family and look up!

Your weekend stargazing guide for the River Murray International Dark Sky Reserve (RMIDSR), featuring the scenic river bends of Caurnamont.

CAURNAMONT | 15 August 2026
Sunrise: 06:52 | Sunset: 17:40
Moonrise: 08:08 | Moonset: 20:29
Astronomical Twilight Ends: 19:04
Moon Phase: Waxing Crescent 🌘 (~8% illumination)
Location: Caurnamont, SA | 34.85° S, 139.58° E

✨ [WEEKEND SNAPSHOT]
[The Twilight Triple Feature (5:40 PM – 8:29 PM)]: Celebrate the moon! The early evening sky is an absolute dream for simple family photos. The ultra-thin 8% crescent moon will float right next to a brilliant Venus and the star Spica, creating a perfect glowing picture frame right over the river ridges.

[The Starry Dark Window (8:29 PM Onwards)]: At 8:29 PM, the crescent moon slips beneath the horizon, leaving the sky completely dark. This opens up an uncompromised 9-hour window of total darkness to view the massive, detailed backbone of our Milky Way galaxy and thousands of deep-winter stars perfectly until dawn!

🖤 Share your view

Are you heading out early to take a family photo of the beautiful Moon and Venus twilight meeting, or staying up late to enjoy the ink-black star window? Let us know in the comments below!

🖤

📷 Matt Clarke | RMIDSR

WATCH: Mastering the August Milky Way Core 🌌✨Did you know that late winter offers the absolute crispest, sharpest views ...
12/08/2026

WATCH: Mastering the August Milky Way Core 🌌✨

Did you know that late winter offers the absolute crispest, sharpest views of the galactic core all year? But capturing it beautifully requires the right preparation.

For this week’s mid-week feature, we are showcasing a brilliant new video guide by our fantastic regional partner, volunteer, and citizen science educator, Matt Clarke from Odyssey! 🤝🖤

🖤 What Matt breaks down this August:

The Galactic Position: Exactly where and when to look as the star-dense core moves directly overhead.
Beating Winter Haze: Technical tips to keep rising nighttime moisture from blurring your deep-space views.
The Impact of Glare: A real-world look at how minor light trespass at home can wash out your astrophotography targets.

Learning how to dodge artificial light pollution to capture the cosmos perfectly highlights exactly why our preservation mission matters so much.

👇 WATCH MATT’S VIDEO & PREPARE YOUR SKILLS: 👇

🔗 https://bit.ly/4xtJdsf

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Mid Murray
Cambrai, SA
5353

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