Cosmic encounters with alien life

Numerous books have been penned on the exciting subject of life on other worlds, and the news almost daily carries stories about potential new habitable sites, ranging from water on Mars to oceans on Europa and exoplanets ...

Interstellar seeds could create oases of life

We only have one example of a planet with life: Earth. But within the next generation, it should become possible to detect signs of life on planets orbiting distant stars. If we find alien life, new questions will arise. ...

Intelligent life in the universe? Phone home, dammit!

We've been conditioned by television and movies to accept the likelihood of intelligent life elsewhere in the Universe. "Of course there's intelligent life out there; I saw it last week on Star Trek." We've seen it all, from ...

Silence in the sky—but why?

(Phys.org) —Scientists as eminent as Stephen Hawking and Carl Sagan have long believed that humans will one day colonise the universe. But how easy would it be, why would we want to, and why haven't we seen any evidence ...

An alien code close to home: Seeking ET beyond the radio silence

Any intelligent extraterrestrial life that exists probably won't announce itself by blowing up the White House, or win over the hearts of children as a lovable alien with a glowing finger. Many scientists simply hope to find ...

Probing Question: What is a Near Earth?

In the 1997 movie "Contact" (based on the novel by Carl Sagan), actress Jodie Foster plays an astrophysicist devoted to SETI -- the Search for Extra-Terrestrial Intelligence. Despite doubting colleagues, she vigilantly monitors ...

page 1 from 2