A 2017 satellite photo shows the stark contrast along the boundary between a giant field of golden "star dunes" and a barren ...

Earth was not always the blue-green world we know today: early Earth's oxygen levels were about a million times lower than we ...

Ancient hot springs in Japan reveal how microbes adapted to Earth’s first oxygen, offering insights into early life.

Microbes - alive and thriving -- have been found sealed within a fracture of 2-billion-year-old rock beneath Earth's surface.

Chemical fossils from 635-million-year-old rocks suggest sponges were among Earth’s first animals, reshaping the story of early life.

From a distance, Biosphere 2 emerges from the cacti and creosote of the Sonoran desert like a gleaming oasis, a colony of ...

In a remote desert, scientists have discovered one of Earth’s oldest asteroid impacts. It dates to well over a billion years ago, to a time when our planet was inhabited solely by single-celled life.

Japan's hot springs reveal how Earth's organisms survived the 'Great Oxidation Event' 2.3 billion years ago: Study A team ...

Earth scientists often face huge challenges when researching Earth's history: many significant events occurred such a long ...

Strange glass strewn across southern Australia appears to be from a mystery asteroid impact 11 million years ago.