Pluto May Be Erupting
November 10, 2015
Two mountains that look like giant volcanoes hint at current activity on Pluto.
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What to Look for at Pluto
June 3, 2015
As New Horizons closes in on Pluto for its July 14 encounter, what questions should be asked?
Inflation Concocted to Avoid a Young, Perfect Universe
July 1, 2014
Alan Guth concocted inflation theory in 1980 to avoid evidence for a 10,000-year-old universe. For his wild, evidence-free speculation, he may win a Nobel Prize.