Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

Space mining often sounds like a fast route to endless metals. In practice, the first question is simple: what are small ...

When Kate Middleton handled a small piece of rock at London’s Natural History Museum she became one of the few people on ...

The key idea behind our framework is that life produces molecules with purpose, while nonliving chemistry does not. Cells ...

The inner solar system is a lot calmer than it was 4 billion years ago, during what’s known as the heavy bombardment period. Over the course of that violent stretch, which lasted about 500 million ...