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Stories by Mike Wall

Saturn’s Rings May Be Ancient After All

Against earlier studies estimating an age of just 100 million years, new research suggests the planet’s rings could be as old as the solar system itself

September 17, 2019 — Mike Wall and

Mars Has Methane—But Does It Have Life?

Multiple lines of evidence suggest the gas occasionally surges into the Red Planet’s atmosphere. Could it be a sign of a subsurface biosphere?

April 2, 2019 — Mike Wall and
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