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Fossilized human teeth spanning two million years of evolution were studied for lead content, which was surprisingly high.
To see the effect of lead on the human brain then and now, researchers…
Scientists have recreated primitive Earth conditions in the lab to uncover how life’s molecular precursors may have formed.
The experiment mimics hydrothermal vents deep in the ocean, believed to have existed some 4 billion years ago.
It reveals…
All sorts of crazy things have been suggested regarding 3I/ATLAS, the third known interstellar object that we’ve discovered. Some are simply conspiracy theories about it being an alien spacecraft, while others have been well-thought out…
The two green comets continue to shine brightly in twilight each evening for lucky skywatchers with binoculars in the Northern Hemisphere. For observers on Friday, Oct. 24, the bright Comet Lemmon (C/2025 A6) continues to travel westward…
Superagers retain sharp minds into their 80s and beyond, defying the idea that cognitive decline is inevitable as we age. A 25-year study of these enviable few now reveals some of what’s special about their underlying neurology.
“It’s really…
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Gravitational lensing is one of the few methods scientists have to search for elusive dark matter,…
By deciphering hieroglyphic inscriptions on centuries-old rocks, researchers have identified the name of a previously unknown Maya queen. Known as Ix Ch’ak Ch’een, she ruled Cobá, or the “city of choppy water,” in Mexico’s Yucatán Peninsula in…
An interstellar comet is dramatically jetting off ice and dust into space, a new image shows.
The comet, called 3I/ATLAS, is sending out a jet of material towards the sun as our nearest star warms up some of its surface. The composite image shows…
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