A study that puts human nature
under the microscope p. 510
HLA influences cancer
therapy response pp. 516 & 582
Sparse ice stresses
polar bears pp. 514 & 568
$15
2 FEBRUARY 2018
sciencemag.org
Motions of Centaurus A’s satellite galaxies
challenge structure formation pp. 520 & 534
A COSMOLOGICAL
CONUNDRUM