Space samples link NASA's Apollo 11 and Mars 2020

On July 24, 1969, Apollo 11 command module Columbia splashed down in the Pacific, fulfilling President Kennedy's goal to land a man on the Moon and return him safely to Earth. Among the mission's many firsts was the acquisition ...

Mississippi river diversions: driving land gain or land loss?

River diversions have not created or maintained land, but resulted in more land loss, according to a new paper in the peer-reviewed science journal Restoration Ecology. LSU Boyd Professor R. Eugene Turner and his LSU co-authors ...

Arctic sea ice loaded with microplastics

At first glance, it looks like hard candy laced with flecks of fake fruit, or a third grader's art project confected from recycled debris.

Best of both worlds: Asteroids and massive mergers

The race is on. Since the construction of technology able to detect the ripples in space and time triggered by collisions from massive objects in the universe, astronomers around the world have been searching for the bursts ...

Which city is most polluted? No one knows

On any given day, a news story might list a city in India as "most polluted." In another story, a city in China may have held the distinction. Then again, maybe Iran hosts the most polluted city in the world, as a recent ...

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