Humans have long imagined life on Mars, but what if the red planet actually delivered life to Earth in the first place?

A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

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

Following speculation that comets could have been alien spacecrafts, more and more experts in the field are convinced that ...

If nonliving materials can produce rich, organized mixtures of organic molecules, then the traditional signs we use to ...

As we look back over the past 20 years, certain villains stand out for their ability to linger in our minds long after the ...

The genre of science fiction has a lot to say about sleep. Here are 11 great stories, from TV, film and books.

There is an old adage that says predicting the future is harder than predicting the past. Nevertheless, I was again tasked ...

A bumpy snailfish, Andean mouse opossum and ancient sea cow were just some of the many species described in 2025.

NASA’s Mars rover finds organic signals in mudstone that resemble microbial activity, sparking new debate over life on the ...