Deals What to pack when you’re hunting dark skies and the aurora this winter — with some amazing Black Friday deals.
Two new peer-reviewed papers claim thousands of unexplained light flashes in vintage Palomar telescope images show statistical ties to nuclear tests and UFO reports. Not everyone agrees with the paper's conclusion.
Discover the research changing our understanding of the world
Extraordinary images of our sublime universe
Science questions, answered
Test your knowledge on all things science with our weekly, free crossword puzzle!
Test your knowledge of everything from space to nature
A look at the weird and wonderful species that live on our planet
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A window onto extraordinary landscapes on Earth
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Leopard cats were living alongside people in ancient China for more than 3,500 years before domestic cats arrived from Europe via the Silk Road.
Researchers have found footprints of large, bone-crushing dogs in the 12 million-year-old Ashfall Fossil Beds in northeastern Nebraska, suggesting these large carnivores may have survived a cataclysmic Yellowstone eruption that covered parts of North America in ash.
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
Opinion How bad-faith arguments sow doubt by weaponizing scientific humility.
Opinion Thousands of scientific papers are retracted every year because of fraudulent activity, with both authors and journals gaming a system to gain academic acclaim through deceit, dishonesty and false representation.
Deep underground in southern China, there is a 20,000-ton tank of liquid that can detect neutrinos. Named JUNO, the detector's first results are in — and they're very promising.
A new study says observations from the NASA Fermi space telescope suggest a halo of dark matter around the center of our galaxy, but more information is needed to confirm the result.
Scientists have used a novel method to create sustainable, rainbow-colored fibers using bacteria in the lab.
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