Research blogs
Stonehenge and the major standstill moon
During 2024 and 2025 we have been investigating at first hand the rare occasions when the moon rises and sets in line with the Station Stones at Stonehenge
Photo © English Heritage/André Pattenden
Nā Inoa Hōkū
A 3rd edition of this definitive source of reference for anyone interested in Hawaiian and Pacific astronomy is due out in July 2026
Hālawa Valley temples
Archaeoastronomy forms an important component of a recent study of pre-contact temples in the fertile Hālawa Valley at the eastern end of the Hawaiian island of Moloka‘i
A Welsh precursor to Stonehenge
Following years of explorations in the area of south-west Wales known to be the source of the Stonehenge bluestones, excavations in 2018 revealed the remains of a stone circle that may well represent “the original Stonehenge”
Heiau, ‘Āina, Lani
The book Heiau, ‘Āina, Lani (“Temples, Land and Sky”) presents the results of a joint fieldwork project by Patrick V. Kirch and myself, spanning more than 15 years, in the south-eastern coastal area of the Hawaiian island of Maui
A new solstitial alignment near Stonehenge
A solstitially-aligned row of six timber posts broadly contemporary with the stone circle at Stonehenge has been discovered at Lark Hill, just outside the World Heritage Site
Desert labyrinth
In 1984, by chance, I discovered a previously undocumented 4.4km-long labyrinth in the Nazca desert, Peru. I was able to return 20 years later to survey it
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