In “Why Do We Exist?” Hakeem Oluseyi explores how life may emerge to move energy through matter—and why Earth is the perfect ...

For many years, the search for extraterrestrial life has been based on the relatively straightforward premise that if a ...

Aliens aren’t “out there” – they’re here on Earth. You may have seen one. You may even be one. And if you read the foregoing ...

The Curiosity rover landed on Mars way too late to observe barren Gale Crater when it was potentially lush Gale Lake. Three ...

NASA's Curiosity Mars rover took this selfie at a location nicknamed "Mary Anning" after a 19th century English ...

NASA's Curiosity rover has found a diverse mix of organic molecules on Mars, including chemicals considered building blocks ...

NASA has uncovered major new clues on Mars that could point to alien life. The space agency’s rover has found chemicals on ...

NASA's Curiosity rover uncovered critical new samples, including a series of compounds planetary scientists consider building ...

Thousands of feet below the surface, the Antarctic seafloor is a time machine to another realm. Here’s how one scientist ...

The possibility of life on other planets is one of the biggest mysteries in science. But what would happen if we actually ...

A newly identifiedplanetary system is forcing astronomers to rethink how worlds form and evolve, as a rocky planet appears where no such object should exist, according to a study published in Science.

Astronomers have discovered a remarkable planetary system where three very different objects orbit a distant star—and their ...