They were looking to study rock art at a remote desert site but what they found showed people had been using the place almost since the first people arrived in Australia.
Despite the American Indian Religious Freedom Act, passed by the US Congress 40 years ago, Native Americans still struggle to protect public lands where they practice their religions.
Many sacred sites such as temples, and churchyards are havens for biodiversity.
Crop circles are global phenomena gaining attention as paranormal culture becomes mainstream, along with a hybrid approach that emulates scientific investigation.
Who owns culture in the real-virtual world of augmented reality?
Even as congregations decline, chapels, meditation and prayer rooms are evolving as spaces of multi-faith worship and quiet reflection.
Thousands of people, both those within Native American communities and their non-Native allies, felt called to go to Standing Rock. What was the motivation?