If life was wiped out on Earth, could it evolve again?

We answer this intriguing question

Astronomers find ‘impossible’ frozen cloud on Titan

The puzzling appearance of an ice cloud on Saturn’s largest moon could possibly be similar to one seen over Earth’s poles

Opportunity rover achieves a six-wheeler up a Martian ridge in search of water

This month, the rover will examine rocks that may have been chemically altered by water billions of years ago

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