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 An ...

For decades now, UFO stories have mostly involved blurry lights in the sky, shaky footage shot on potato phones and men ...

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have identified just under 50 rocky worlds most likely to be habitable out of ...

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Curiosity, which is exploring Gale Crater, conducted a chemistry experiment on a rock sample that revealed complex carbon ...

Asteroid samples fetched by NASA hold not only the pristine building blocks for life but also the salty remains of an ancient ...

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A new method to recognise the chemical properties of living things could help us detect alien life even if it functions differently from life on Earth. When searching for alien life, scientists ...

“USA250: The Story of the World’s Greatest Economy” is a yearlong WSJ series examining America’s first 250 years. Read more about it from Editor in Chief Emma Tucker. Imagine the first convincing ...

Humans have always been fascinated with space. We frequently question whether we are alone in the universe. If not, what does intelligent life look like? And how would aliens communicate? How could ...