Astronomers have just revealed the most promising places in the universe to search for extraterrestrial life, identifying almost 50 rocky worlds that are most likely to be habitab ...

Explore the worst and weirdest places on Earth, from deadly deserts to toxic lakes. Discover extreme nature's secrets and bizarre landscapes. Dare to explo ...

Some exoplanets, especially those orbiting cooler red dwarfs, might host purple plant life rather than the green-hue vegetation found on Earth. A study from Cornell University discovered that a ...

The fictional biologist in ‘Project Hail Mary’ claims that potential alien organisms might not be made of carbon or require water, unlike life on Earth.

Like the lead character of “Project Hail Mary,” some scientists are proposing ways that life might exist beyond a star’s “habitable zone,” often considered the gold standard of potential livability ...

There’s a place in Colorado where the landscape is so otherworldly that you half expect to see a Mars rover trundling across the horizon. Star Dune at Great Sand Dunes National Park near Mosca rises ...

Titan, Saturn's largest moon, happens to share some truly remarkable geophysical and geological processes with our home ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself?

This landscape was so convincingly alien that Apollo astronauts spent weeks here preparing for moon missions. Can you guess ...

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

A viral podcast moment last month reignited speculation about extraterrestrials and prompted President Donald Trump’s commitment to kickstarting the release of government files on flying saucers. But ...

E.T. could be phoning home — but we’re not hearing the call. A new study published in The Astrophysical Journal argues that “space weather” could be distorting incoming transmissions from ...