Add Yahoo as a preferred source to see more of our stories on Google. In space, there are four dimensions: length, width, height and time. scaliger/iStock/NASA via Getty Images Plus About a century ...

Assembly Theory is a way to understand how the complexity of life emerged through a mechanism of “self-assembly.” It could explain how life formed on Earth—or other planets—via the shortest path to ...

Across physics, biology and philosophy, a once-fringe idea is gaining new intellectual weight: the possibility that the cosmos behaves less like a dead machine and more like a living system. Instead ...

Science fiction has long speculated about the possibility of first contact with an alien species from a distant world and how we might be able to communicate with them. But what if we simply don’t ...

Astronomers are using radio pulses from space to find missing baryonic matter and learn about supermassive black holes, stellar formation and galaxy evolution. When you purchase through links on our ...

The universe exists because matter and antimatter are not good friends. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Is there a scientific ...