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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 Friday, NASA's InSight Mars lander captured and transmitted historic audio from the red planet.
Altria Group Inc., maker of Marlboro cigarettes, said it's taking a 45 percent stake in Cronos Group, a major Canadian medical and recreational marijuana provider.
The project involves a high-altitude balloon, tons of tiny particles and knowledge gained from a violent volcano eruption in 1991.
Walgreens now competes with Amazon and CVS in the race to dominate the prescription delivery market.
Russia has launched several so-called "inspector satellites" that could potentially be weaponized.
Australia's two largest supermarkets led the ban, which has so far prevented some 1.5 billion plastic bags from entering the environment.
On Tuesday, Secretary of State Mike Pompeo said the U.S. will withdraw from the 1987 agreement unless Russia falls back into compliance.