News

Anthropology

New footprint finds suggest range of body sizes for Lucy’s species

Tracks discovered in Tanzania appear to have belonged to the tallest known Australopithecus afarensis individual, but stature estimates can be tricky.

Earth

Megadiamonds point to metal in mantle

Imperfections in supersized diamonds hint at metallic iron and nickel in Earth’s mantle.

Planetary Science

Dawn spacecraft maps water beneath the surface of Ceres

Water ice sits just beneath the surface and within some permanently shadowed craters of the dwarf planet Ceres.

Genetics

Proteins that reprogram cells can turn back mice’s aging clock

Proteins that reprogram adult cells to an embryonic-like state can rejuvenate prematurely aging mice.