New technical analysis dates Yale's Vinland Map to the 1920s or later, not the 1440s as previously suggested
The objects, as well as an inscription at the site, suggest ties to Septimius Severus, who led campaigns nearby in the early third century C.E.
A wealthy landowner probably hid the hoard to protect it from "barbarian" invaders
Astronomers recently discovered a wall of galaxies 1 billion light years across, larger than anything else yet identified in the cosmos
Researchers captured more than 5,000 birds to learn how our now-extinct ancestors foraged for food