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203,305 articles from PhysOrg

SpaceX rocket ship lifts off with 2 Americans (Update)

A rocket ship built by Elon Musk's SpaceX company thundered away from Earth with two Americans on Saturday, ushering in a new era of commercial space travel and putting NASA back in the business of launching astronauts from U.S. soil for the first time in nearly a decade.

FRIDAY 29. MAY 2020

Scientists develop method to help epidemiologists map spread of COVID-19

Rochester Institute of Technology scientists have developed a method they believe will help epidemiologists more efficiently predict the spread of the COVID-19 pandemic. Their new study, published in Physica D: Nonlinear Phenomena, outlines a solution to the SIR epidemic model, which is commonly used to predict how many people are susceptible to, infected by, and recovered from viral epidemics.