New research from HKU geologists suggests that Earth's first continents were born not from plate tectonics, but from deep ...

A sudden burst of red light flickered above a thunderstorm, and for a brief moment, Earth’s upper atmosphere revealed one of its most elusive secrets. From 250 miles above the surface, aboard the ...

Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

Their Latin name means "night shining" and the clouds usually appear as streaks of blue or silver. The Met Office describes ...

YR4 won’t hit Earth, but a 4% chance remains for a lunar impact. ESA's upcoming NEOMIR telescope could revolutionize early ...

This extraordinary event is known as a sprite — or “farfadet” in French — one of the rarest forms of Transient Luminous ...

Ancient oceans with phosphorus-rich waters may have supported some of Earth’s earliest microbial life, according to a new ...

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth? A discovery ...

In the early 1990s, eight people tried to survive in a hermetically sealed glass structure filled with miniature forests, ...

The Great Oxidation Event (GOE) was a major turning point when oxygen began to build up in Earth’s atmosphere and surface ...

Climate change left its signature on the atmosphere early in the industrial revolution, reveals a thought experiment ...

Understanding where and in what quantities essential elements for life have existed on Earth's surface helps explain the ...