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Your once-in-a-lifetime chance to see the world’s newest comet

Taylah DarnellBy Taylah Darnell
This may just be the celestial event of the century.

Look up into the night sky this October and you may just catch a rare celestial visitor. Known as C/2025 R2 (SWAN), it takes more than 600 years to pass Earth. In other words, this is the first and last time you’ll ever be able to see it.

What makes C/2025 R2 (SWAN) so special?

Identified on 11 September by an amateur astronomer in Ukraine, C/2025 R2 (SWAN) is a completely new visitor to our solar system. Vladimir Bezugly, from the central Ukrainian city of Dnipro, first spotted the comet when viewing images from SOHO (Solar and Heliospheric Observatory), a joint-project spacecraft between NASA and the ESA tasked with observing the sun.

Comet C/2025 R2 (SWAN)
C/2025 R2 (SWAN) was only discovered a few weeks ago. (Image: Adam Block)

C/2025 R2 (SWAN) seemingly appeared out of nowhere, a “bright blob" moving close to the sun. It’s not only one of the brightest findings ever made via SOHO, but also happens to be one of the newest comet discoveries in the world. Characterised by its gorgeous green glow and exceptionally long tail (the stream of gas and dust left in its wake), it’s a true sight to behold – and you’ve got one opportunity to catch it.

Experts have been working hard to learn more about the object, which has been classified as a long-period comet with an orbital cycle of over 600 years. For context, Earth’s orbital cycle is just one year, meaning that’s how long it takes us to complete one full lap around the sun. So if C/2025 R2 (SWAN) is about to pass Earth, it won’t be back until 2625.

What’s the likelihood of seeing it in Australia?

Comet C/2025 R2 (SWAN)
The comet is characterised by its green glow and long tail. (Image: Adam Block)

At its most recent, C/2025 R2 (SWAN) clocked a magnitude of +7 (magnitude being the scale astronomers use to measure the brightness of celestial objects). The lower the number, the brighter the object, with +6.5 considered the limit for naked-eye visibility under a non-polluted sky.

While C/2025 R2 (SWAN)’s rating is relatively low compared to others of its kind – Halley’s Comet sat at +2.1 and 96P/Machholz at +2.2 when they last passed Earth – it doesn’t mean you won’t see it. Our interstellar guest is estimated to pass through around mid-October, approximately 40 million kilometres away. For us Earth-dwelling folk, that sounds quite far. But in space talk, it’s quite the opposite!

Hot tips for comet chasers

While a celestial sighting can never be guaranteed, there are definitely ways to improve your chances. One of the easiest ways is simply finding a patch of sky as far-removed from the big smoke as you can get. Light pollution significantly decreases the likelihood of catching an astronomical event, because it’s artificial, it washes out fainter light, reducing the overall contrast of the sky and preventing the human eye from fully adjusting to the dark.

That’s why places like the outback, national parks and other areas are among Australia’s best stargazing spots – they’re isolated by design. Or head to Kestrel Nest EcoHut in NSW, the first official International DarkSky Approved Lodge in Australia.

Kestrel Nest EcoHut in NSW
Kestrel Nest EcoHut is Australia’s only DarkSky Approved Lodge. (Image: Grant Hardwick)

Be sure to pack a good pair of binoculars, too. For those who take the sport a little more seriously, opting for a telescope is your best bet. You’ll also want to bring a camp chair, bug spray, blankets, snacks and a red-light lamp. If you’re determined to catch the show, you may be waiting for a while, so these items will not only keep you comfy but also allow you to stay out later and for longer.

Aussies usually aren’t too lucky when it comes to catching comets, but it seems the odds are in our favour this time. Right now, C/2025 R2 (SWAN) has primarily been visible from the southern hemisphere. Currently tracking further from the sun and closer to Earth, it will reach perigee (its closest point to our planet) on 21 October. C/2025 R2 (SWAN) will then continue on its centuries-long orbit, making this a truly once-in-a-lifetime experience.

You can stay up to date with C/2025 R2 (SWAN)’s movements via The Sky Live .
Taylah Darnell
Taylah Darnell is Australian Traveller's Writer & Producer. She has been passionate about writing since she learnt to read, spending many hours either lost in the pages of books or attempting to write her own. This life-long love of words inspired her to study a Bachelor of Communication majoring in Creative Writing at the University of Technology Sydney, where she completed two editorial internships. She began her full-time career in publishing at Ocean Media before scoring her dream job with Australian Traveller. Now as Writer & Producer, Taylah passionately works across both digital platforms and print titles. When she's not wielding a red pen over magazine proofs, you can find Taylah among the aisles of a second-hand bookshop, following a good nature trail or cheering on her EPL team at 3am. While she's keen to visit places like Norway and New Zealand, her favourite place to explore will forever be her homeland.
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Film lovers need to add these Victorian theatres to their bucket list

    Ricky FrenchBy Ricky French
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    Theatres have always been a cornerstone of regional Victoria, reflecting the character and history of their local communities.

    From grand, gold rush-era masterpieces to Art Deco wonders to repurposed prisons, we’ve rounded up four of Victoria’s best regional theatres to catch a show at next time you’re travelling through.

    Her Majesty’s Theatre, Ballarat

    Her Majesty’s Theatre, Ballarat 
    Her Majesty’s Theatre in Ballarat has been standing for 150 years. (Image: Michael Pham)

    A monument to the immense gold rush wealth flooding through Ballarat in the second half of the 19th century, Her Majesty’s Theatre (‘Her Maj’ to locals) celebrates its 150th anniversary as the city’s premier performing arts venue this year.

    Built in a classical style and immaculately preserved (thanks largely to a recent $16-million restoration), this Lydiard Street landmark is the oldest continuously operating theatre in mainland Australia, notable for its double balcony and a stage that slopes towards the front, making it one of the most audience-friendly venues in the country to see a show.

    The Capital, Bendigo

    The Capital Theatre, Bendigo
    The Capital in Bendigo was built in 1873 as a Masonic Hall. (Image: Michael Pham)

    Denoted by its distinctive Corinthian columns, more reminiscent of ancient Greece than regional Victoria, The Capital theatre in Bendigo has been through several iterations since the first stone was laid in 1873.

    Originally a Masonic hall, the renaissance revival-style building became a theatre in the 1890s, falling into disrepair for a time during the 1970s, before being restored and reopened (as the Bendigo Regional Arts Centre) in 1991. Today, the 480-seat venue hosts everything from comedy to cabaret to traditional theatre, dance, opera and live music.

     Ulumbarra Theatre, Bendigo

    a look insideBendigo’s Ulumbarra Theatre
    Inside Bendigo’s Ulumbarra Theatre, a former prison. (Image: Michael Pham)

    Bendigo has busted out as a regional performing arts hotspot, so it’s fitting that one of its newest venues is housed within a former prison. Meaning ‘meeting place’ or ‘gather together’ in the language of the local Dja Dja Wurrung people, the $26-million, 950-seat auditorium rose from within the red brick walls of the historic Sandhurst Gaol in 2015.

    It’s an eerie feeling as you approach the imposing granite facade, pass beneath the old gallows and pick up your ticket from the box office occupying a repurposed cell block. With the building playing a main character in the show, this is performative architecture at its finest.

    Rex Theatre, Charlton

    the Rex Theatre in Charlton
    The 1938-built Rex Theatre in Charlton is an Art Deco gem. (Image: Jenny Pollard)

    Regional theatres don’t come more romantic than this Art Deco gem in the river town of Charlton, in north-central Victoria. Built in 1938, the 350-seat community-owned theatre provides an essential entertainment outlet for residents in the Wimmera Mallee region, as well as visitors making the trip up the Calder Highway from Melbourne.

    The volunteer-run venue is the last remaining purpose-built cinema in regional Victoria, and hosts the Charlton Film Festival every February, plus three weekly film screenings (Tuesday, Saturday and Sunday).