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Earth's upper atmosphere could hold a missing piece of the universe, new study hints
By Paul Sutter published
Mysterious dark matter could slosh over our planet like a wave. If it does, it may produce telltale radio waves in Earth's atmosphere, new theoretical research suggests.
Giant river system that existed 40 million years ago discovered deep below Antarctic ice
By Kristel Tjandra published
"There was this gigantic river system": Researchers find ancient lost world deep beneath Antarctic ice.
Satellites watch 'extremely dangerous' Hurricane Beryl batter Carriacou island (video)
By Sharmila Kuthunur published
Hurricane Beryl made landfall on Monday (July 1) morning, setting the record of strongest hurricane to happen this early in the year.
NASA is flying planes low over the US to make maps of air pollution sources
By Rahul Rao published
NASA is flying aircraft low over the US in order to learn where, exactly, greenhouse gases are coming from. The results should help the agency fight causes of human-driven climate change.
What is UTC?
By Adam Mann last updated
Reference Here's how time is coordinated around the world.
The rotation of Earth's inner core is slowing down
By Samantha Mathewson published
The rotation of Earth's inner core began to slow down more than a decade ago, altering the length of our days by fractions of a second.
Space photo of the week: 'Earthrise,' the Christmas Eve image that changed the world
By Jamie Carter published
Snapped from lunar orbit in 1968 by NASA astronaut Bill Anders, who died this week at age 90, 'Earthrise' is perhaps the most iconic image of our planet ever taken.
4,000-year-old 'Seahenge' in UK was built to 'extend summer,' archaeologist suggests
By Tom Metcalfe published
The construction of the monument and another beside it more than 4,000 years ago corresponds to a time of bitter cold.
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