Geology

Researchers used radiocarbon dating to determine some termite mounds in an arid region were about 34,000 years old.

When Wesley Lamont set up his camera to capture the aurora australis, he had no idea he was trampling on a fragile ecosystem and potentially causing decades of damage.

Some of the most popular places for tourists to visit in South Australia's south-east have been closed for years. Now, the local council is taking over the leases on two of the city's biggest attractions, upsetting the current operators.

Growing up in Kununurra, Archie Stanley has developed a passion for geology — and he's putting his interests to a worthy cause.

Graham Kilsby turned the sinkhole on his family's farming property into a tourism attraction to cover insurance. Now it's attracting visitors from interstate and overseas.

The Nullarbor Plain is famous for being hot, dry, flat and featureless - a necessary stretch of very straight road on the way to somewhere else. Few people know about the enormous cave system that lies beneath, and even fewer have explored it.

The Nullarbor Plain is famous for being dry, flat and featureless — but it's a very different story beneath the surface, with an intricate cave system that has remained mostly untouched. 

A fossil jawbone found by a young girl and her father on a beach in England belongs to a gigantic marine reptile dating back to 202 million years ago that appears to have been among the largest animals ever on Earth. 

Mount Etna has released volcanic vortex rings, a rare phenomenon caused by a constant release of vapours and gases. 

Five decades ago, when geologist Jim Bowler brushed sand away from the dome of an ancient human cranium, it changed the way we thought about Australia's past.

After unearthing a stunningly rare "Yowah nut" opal in outback Queensland, Dave Darby had a choice to make about where it went. He chose to keep it in Australia and let everyone share in its beauty.

Scientists discover the oldest fossilised forest known on Earth, dating back 390 million years, according to a new study.

Researchers uncover new information about the coldest times in the continent's history by studying a system of caves on South Australia's Limestone Coast.

Across Tasmania, there are almost 10,000 known landslides, including at the site of a large high school in Hobart.

The rocky headlands at Dark and Myrtle beaches tell a story more than 150 million years old, from before the Sydney Basin formed. It's a story anyone can read — if they have eyes to see it.

The sinkhole in Mount Gambier appeared last year after heavy rain. After seven months, the council has started to fill it in.

The settlements were occupied around 500 BC and 300 to 600 AD — a period roughly contemporaneous with the Roman Empire in Europe.

Australia is surrounded by stunning islands — you may even spend time on one this summer. Join us on a whistle-stop tour to explore how some of our most iconic isles rose from the sea.

The Glenorchy landslide of 1872 is still used to model future debris flow risks in parts of Tasmania with heavy rainfall deemed the biggest risk.

Scientists say the eruption was expected after thousands of small earthquakes, but it could continue for some time.

Researchers say an asteroid impact crater up to 520 kilometres in diameter could lie under a the town of Deniliquin.

Noongar man Michael Ward grew up in the area and says just as water helped form the rock, it's now contributing to its changing appearance.

A new method that uses artificial intelligence could help identify ancient life on Earth, as well as help in the search for it on other planets, say researchers.

The famous Argyle diamond deposit was created some 1.3 billion years ago, when a chunk of an ancient supercontinent started splitting apart, violently blasting hot rock carrying the precious stones to the surface, new research suggests.

A cave dive that is one of the most difficult to access in South Australia's south east has been closed for years but there are hopes that could change.