Dyson spheres and rings have always held a special fascination for me. The concept is simple: build a great big structure ...

Patrick discusses a bombshell story no one is talking about that could change the way we look at the mystery drones. Plus a ...

Did microbes ever live on Mars? Did an "elevator" help build Egypt’s first pyramid? Some signs pointed to yes this year, but confirmation is still needed.

This section describes the materials of which the Earth is made, and how and why these elements are distributed among the various spheres of the Earth. Get access to the full version of this content ...

Chondritic meteorites (chondrites) are some of the oldest rocks in our solar system, forming 4.5 billion years ago. Therefore ...

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In a moment of high prestige, President-elect Donald Trump was the center of attention at the New York Stock Exchange on ...

One possible reason why we haven't found any intelligent life in the cosmos the Great Filter argument, which says that very ...

NASA released a conceptual video showing how its next Mars helicopter will explore the Red Planet. The design builds on the ...

Time is vital to the functioning of our everyday lives: from the watches on our wrists to the GPS systems in our phones.

We've long believed that Venus was once more like Earth before it turned into a scorching, sulfurous planet. Not so, ...

Frank Cottrell-Boyce and Cressida Cowell recommend a selection of children’s books.