From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

For decades, the search for life beyond Earth has focused on distant exoplanets and the rusty plains of Mars. Now, a small ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

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