It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

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 ...

A global catalog shows how creatures across the tree of life balance rigidity with flexibility in remarkably consistent ways ...

Fresh orbital images and new geological analysis have revealed eight mysterious caves on Mars that appear unusually well suited to protect traces of life. Together, these caverns, portals and ...

Motion capture can look great or cheap, but these 10 characters represent the best examples of how the technology can bring ...

Although you only hear their voices in this superhero animated series, there are a lot more celebrities than you might expect ...

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 ...

Most people in 1998 correctly doubted that space travel would be common for ordinary Americans or that alien life forms would ...

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