A roundup of weekly science policy and related news.

PETA study finds violations more often in approved labs.

Viral sequences demonstrate how the disease spread in Sierra Leone.

Ash sensors ready to deploy on ground, planes.

Residues on pottery suggest close ties between Mesoamerica and cultures to the north.

“File drawer” study proposes registry for unpublished social science data.

A massive explosion in a nearby galaxy both confirms and confounds astronomers' expectations.

Researchers are scouring the now-barren Arabian Peninsula to uncover its hidden role in ancient human migration.

A listing of books received at Science during the week ending 22 August 2014.

Should funding focus on scientific research?

Domestication of rabbits led to changes across the genome, particularly in regions related to brain development [Also see Report by Carneiro et al.]

Radio-wave interferometry provides an accurate measurement of cosmic distances [Also see Report by Melis et al.]

Cells use a piston-driven mechanism, among others, to migrate [Also see Report by Petrie et al.]

Genetic data elucidate the population history of the North American Arctic [Also see Research Article by Raghavan et al.]

What does the “Mississippi baby” tell us about curing HIV-1 infection?

Nuclear magnetic resonance spectroscopy of a glass under pressure adds to our understanding of network structure [Also see Report by Edwards et al.]

Early Arctic humans differed from both present-day Inuit and Native Americans. [Also see Perspective by Park]

X-ray structures provide insight into how an ion channel involved in activation of neurons is gated.

Boron atoms move out of plane with pressure as they transition from threefold to fourfold coordination in borosilicate glass. [Also see Perspective by Youngman]

A highly accurate and precise radio measurement overrules a contrary result from the Hipparcos satellite. [Also see Perspective by Girardi]

Variations in the brightness of warm dust indicate recent destructive collisions among protoplanets.

An ultracold gas mixture of two lithium isotopes, one bosonic and the other fermionic, manifests superfluidity.

Megathrusts subducting rugged sea floor have high fault strength but do not unleash great earthquakes.

A small portion of Brazil’s agricultural subsidies would be enough to preserve private land in the Brazilian Atlantic Forest.

El Niño–Southern Oscillation warming of the sea surface was strongly skewed toward the central Pacific in the Mid-Holocene.

Microbes colonize not only our guts, but also our homes.

Bacteria thought to rely on the oxidation of nitrite for energy can, in fact, do just fine by oxidizing hydrogen instead.

Noninvasive stimulation of the brain can improve memories for episodes by boosting the connectivity between cortical regions.

Live-cell imaging in mice reveals the molecular details of B cell selection in germinal centers.

Human fibroblast migration in a physiological extracellular matrix relies on a polarized intracellular pressure gradient. [Also see Perspective by DeSimone and Horwitz]

Mutations in the DNA packaging material disrupt fruit fly development and reveal epigenetic regulatory pathways.

X-ray structures provide insight into how an ion channel involved in activation of neurons is gated.

The domestication of rabbits primarily shifted the frequencies of alleles represented, rather than creating new genes. [Also see Perspective by Lohmueller]

On this week's show: Our microbial housemates and a news roundup.

A weekly roundup of information on newly offered instrumentation, apparatus, and laboratory materials of potential interest to researchers.