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Stephen Johnson
Executive Editor, Big Think
Stephen Johnson is Executive Editor at Big Think. His writing has appeared in PBS, U.S. News & World Report, and newspapers and magazines across the Midwest. He lives in St. Louis.
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On Thursday, New Zealand moved to ban an array of semi-automatic guns and firearms components following a mass shooting that killed 50 people.
The Bill Gates-backed venture promises to remove CO2 from the atmosphere at a rate of under $100 per tonne.
"Here I want to remind all of you of a fact that the U.S. publicly defines outer space as a new battlefield," a Chinese foreign minister said.
A NASA-led study suggests the stress of spaceflight seems to trigger various types of herpes to reactivate in astronauts.