The Mysterious Origin of Oolitic Sand
New evidence is emerging for the odd hypothesis that this strange, egg-shaped sand is built by microbes.
Aug 23, 2018 | 450 words, about 2 minutes
Geology
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What Bones, Genes, and Space-Singed Rocks Tell Us About the Peopling of the Americas
Two new studies add to the emerging narrative of how the first people arrived in and settled the Americas.
May 31, 2018 | 1,000 words, about 5 minutes
When Mountains Fall into the Sea
As glaciers melt, unstable slopes are being exposed and are on the precipice of collapse.
May 1, 2018 | 2,800 words, about 14 minutes
Pulling Up a Piece of Hades’s Home
Expeditions to the hadal seafloor are turning up a trove of surprising discoveries.
Apr 23, 2018 | 700 words, about 3 minutes
Volcanoes Get a Kick from Climate Change
Melting ice will make volcanic eruptions more frequent—and more dangerous.
Feb 2, 2018 | 650 words, about 3 minutes
Did Ancient Greeks Sail to Canada?
Researchers think Plutarch’s De Facie tells the tale of Greek sailors making the treacherous transatlantic crossing. They dug into the science to show how it could have happened.
Feb 1, 2018 | 1,800 words, about 9 minutes
Toxic Thaw Syndrome
Melting permafrost carries unknown dangers for Arctic marine life.
Jan 11, 2018 | 600 words, about 3 minutes
Sea Level Rise Is Unlocking Decades-Old Pollution
Salt water creeping upland could release legacy fertilizer into the Chesapeake Bay.
Jan 10, 2018 | 1,000 words, about 5 minutes