Shannon Hall
Shannon Hall
Award-Winning Freelance science journalist | Scientific American, The New York Times, National Geographic, Quanta, Nature, Discover and more | Views are my ownSource
Boulder, Colorado
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After SpaceX Starlink Launch, a Fear of Satellites That Outnumber All Visible Stars

After SpaceX Starlink Launch, a Fear of Satellites That Outnumber All Visible Stars

Last month, SpaceX successfully 60 500-pound satellites into space. Soon amateur skywatchers started sharing images of those satellites in night skies, igniting an uproar among astronomers who fear that the planned orbiting cluster will wreak havoc on scientific research and trash our view of the cosmos.The main issue is that those 60 satellites are merely a drop in the bucket. SpaceX anticipates — creating a mega-constellation of false stars collectively called Starlink that will connect the entire planet to the internet, and introduce a new line of business for the private spaceflight...

June 2, 2019
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Pluto’s dark side spills its secrets — including hints of a hidden ocean

Pluto’s dark side spills its secrets — including hints of a hidden ocean

When NASA’s New Horizons spacecraft zipped past Pluto in 2015, it showed a world that was much more dynamic than anyone had imagined. The dwarf planet hosts icy nitrogen cliffs that resemble the rugged coast of Norway, and giant shards of methane ice that soar to the height of skyscrapers. Cracks deeper than the Grand Canyon scar the surface, while icy volcanoes rise taller than Mount Everest. In one part of the distant orb, the spacecraft’s cameras captured a giant heart-shaped feature that caused a collective swoon among countless fans on Earth. “I expected Pluto to be a scientific...

July 31, 2020
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