On the fictional planet Veteris, creatures blur every line between plant and animal — walking flowers, photosynthetic ...

Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature ...

This deep dive tours fictional worlds ranging from a tidally-locked planet crawling with giant slow-moving "starfish" to a gas giant where whale-sized animals float through the sky.

Star Trek can usually make rubber forehead aliens not just cool, but turn them into pop culture icons. Their five worst ...

For instance, what if we really are being visited by aliens from other worlds and they turn out to be aggressive, violent, ...

The plants outside your window carry a hidden geography. Many arrived from distant continents. A new global forecast shows that mix is about to shift, in ways few people notice until it takes hold.

Here’s something you didn’t know. Clark’s nutcracker, a clever North American bird, can store over 33,000 pine seeds in 2500 ...

New research suggests AI can be repeatedly fooled into mistaking non-life for life.

Are aliens real? Was Fox Mulder right all along? We examine the prediction markets to gauge if the U.S. government will confirm that aliens exist before January 2029. The prediction market on a U.S.