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Oxygen has been the most important gas in our search for life among the cosmos thus far. On Earth, we have it in abundance ...

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

At the keynote panel at SXSW, Steven Spielberg revealed his beliefs that "we are not alone here on Earth right now." ...

The filmmaker weighed in on aliens and his career during a keynote appearance at South by Southwest Film & TV Festival on ...

New research shows many people vastly underestimate other people's beliefs in extraterrestrial life. Is social stigma keeping ...

Now, the director is refocused on aliens for his new film, Disclosure Day, partially due to their resurgence in pop culture.

Do aliens exist? Few debates have proved as enduring – or as divisive – as the question of whether there is life beyond Earth ...

A viral podcast moment last month reignited speculation about extraterrestrials and prompted President Donald Trump’s ...

Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

Our single-celled ancestor lived in a world without plants, animals or oxygen-rich oceans. Yet, this seemingly simple ...

Beyond that, in the decades to come, we might be able to see the colours of an exoplanet’s surface, and determine if plant ...