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Chris Kirkland

Chris Kirkland

The Conversation

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Reading the rocks in the Pilbara

A new study using mineral dating of rocks in the Pilbara shows the Earth’s oldest crater is more than three billion years old. In the Pilbara of...

01.07.2026 10

Pearls and Irritations

Chris Kirkland

Reading the rocks in the Pilbara

A new study using mineral dating of rocks in the Pilbara shows the Earth’s oldest crater is more than three billion years old. In the Pilbara of...

30.06.2026 20

Pearls and Irritations

Chris Kirkland

Earth’s oldest crater really is over 3 billion years old, new study confirms

The oldest known impact structure on Earth has been confirmed in outback Australia.

24.06.2026 20

The Conversation

Chris Kirkland

Rare 567‑million‑year‑old fossils refine our understanding of early animal evolution

When it comes to evolution, a few million years can really matter.

21.05.2026 20

The Conversation

Chris Kirkland

Tiny crystals in Earth’s crust have captured the movement of the Milky Way’s spiral arms

The findings suggest Earth’s geological story was partly written in the stars – specifically, in the spiral arms of our home galaxy.

17.09.2025 20

The Conversation

Chris Kirkland

1 billion years ago, a meteorite struck Scotland and influenced life on Earth

The microbes living here were dramatically disrupted – and the future of life on Earth changed.

29.04.2025 10

The Conversation

Chris Kirkland