The formation and evolution of the recognized stellar components of the Milky Way—its central bulge, disk and halo—are among the most fundamental and actively explored areas in contemporary astronomy.

An unusually large structure from the last ice age built from the bones of dozens of woolly mammoths has been uncovered in Russia. Dating back some 25,000 years, it’s the oldest known structure of its ...

This is a preview. Log in through your library . Abstract Long-term changes in the age and size structure of animal populations are well documented, yet their impacts on population productivity are ...

Archaeologists recently discovered a stone age structure they believe to be older than Stonehenge and the Egyptian pyramids found in Giza. The archaeologists believe the structure, which they say is a ...