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Primordial Haze Theory Competes with Primordial Soup in Debate over Life

Earth's Future Glimpsed on Titan
Composite view of Titan built with Cassini images taken on Oct. 9 and Oct. 25, 2006. (Image credit: NASA/JPL/University of Arizona)

Life on Earth may

Scientists

Meanwhile, an

Earth vs. Titan

While Titan

And long ago,

"It's pretty

Horst presented her

Conditions just

The primordial-soup

Complex molecules

This may well have

Big, complicated

Plenty of energy to

On Titan, "we

Pushing the clock

Until

The

"Evidence

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Mike Wall
SPACE.COM SENIOR SPACE WRITER — Michael has been writing for Space.com since 2010. His book about the search for alien life, "Out There," was published on Nov. 13, 2018. Before becoming a science writer, Michael worked as a herpetologist and wildlife biologist. He has a Ph.D. in evolutionary biology from the University of Sydney, Australia, a bachelor's degree from the University of Arizona, and a graduate certificate in science writing from the University of California, Santa Cruz. To find out what his latest project is, you can follow Michael on Twitter.