This chemical signature or fingerprint doesn't show up in studies of other large impacts on Earth, or in any geological ...

In a first, researchers have discovered fragments of Earth's precursor that contain distinctive chemical fingerprints in ...

An interactive map of Afghanistan, Project Athena is an archive to which veterans can upload photos, chronicling the war as they lived it.

Researchers have developed a novel application of histological staining to screen for ancient proteins in situ—within the ...