The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home ...

A new study analyzed how NASA's Habitable Worlds Observatory might be able to confidently spot biosignatures in the ...

The group leading the charge in the search for extraterrestrial life has given the all clear: An interstellar comet looks to ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet ...

The rock, Clinton said, “speaks to us across … billions of years and millions of miles. It speaks of the possibility of life.

By studying Earth's toughest microbes and complex animal "speech", scientists are reshaping how we search for – and may someday talk to – alien life.

Space X’s IPO filing laid out a bonus structure that was dependent on the Elon Musk’s ability to take mankind to mars.

NASA’s Curiosity rover has discovered the largest organic molecules ever detected on Mars. Found inside a 3.7-billion-year-old rock from a dried-up lakebed, these long-chain carbon molecules raise new ...

Ingo Swann was a government-backed psychic who claimed to see things no human was supposed to see—alien structures hidden on the far side of the Moon. Years later, declassified CIA documents confirmed ...

Where are all the aliens? No, I don’t mean microbes on Mars or creatures swimming beneath the ice crusts of Europa or Enceladus, but honest-to-God intelligent aliens, capable of space travel? The ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.