Bad Calculation: The Case of the Shrinking Comet and the Age of Solar System

Ten years after launching, the European Space Agency Rosetta spacecraft caught up to its target: Comet 67P.   In 2014, Rosetta, now 250 million miles from Earth, traveled along with the comet while it made its way around the Sun measuring its increased activity including classic comet tail formation as it approached the sun.  At one […]