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The body's "killer" T cells don't just attack--they strike with astonishing precision, forming a tiny, highly organized contact zone that lets them destroy dangerous cells without harming their neighbors. Now, scientists have captured this process in ...

For the first time, scientists have watched a subduction zone literally fall apart beneath the ocean floor. Using advanced seismic imaging, they found the Juan de Fuca plate splitting into fragments as it sinks beneath North America. Rather than ...

Archaeologists have uncovered six previously unknown Bronze Age mines in southwestern Spain, offering a striking new clue about where the metal in ancient Scandinavian artifacts may have come from. Found near Cabeza del Buey, the sites include ...

New experiments suggest that freezing and thawing on early Earth may have helped primitive cell-like structures grow and evolve. Tiny lipid bubbles behaved very differently depending on their membrane makeup--some fused into larger compartments and . ...

A massive prehistoric snake discovered in India may rank among the largest ever to slither across Earth. Named Vasuki indicus, this ancient giant lived around 47 million years ago and is estimated to have stretched an astonishing 11 to 15 meters long ...

A spectacular cosmic event nicknamed "SN Winny" could help solve one of astronomy's biggest mysteries: how fast the universe is expanding. This rare superluminous supernova, located 10 billion light-years away, appears five times in the sky thanks to ...

Scientists have uncovered the true boundary of the Milky Way's star-forming region using stellar "age mapping." They found a telltale U-shaped pattern showing that star formation drops sharply around 35,000-40,000 light-years from the center. Beyond ...

A decades-old drug once used to treat sleeping sickness is now showing surprising promise against an ultra-rare and life-threatening genetic disorder called Bachmann-Bupp syndrome (BABS). Early patient treatments suggest the drug, DFMO, may ease ...

A troubling new study from MIT reveals that a common environmental contaminant, NDMA--found in polluted water, certain medications, and even processed foods--may pose a far greater cancer risk to children than adults. In experiments with mice, young ...

Curiosity has detected a surprising variety of organic molecules on Mars, including compounds tied to the chemistry of life. Some of these molecules may be billions of years old, preserved in ancient clay-rich rocks that once held water. One standout ...