Editor summaries of this week's papers.

Highlights of the recent literature.

A roundup of weekly science policy and related news.

Primordial clouds show how giant stars forged the heavy elements that fill today's universe.

$2 million fine for Lumosity is latest shot at claims of cognitive benefits from games and apps.

ORCID gives every Smith and Wang a unique number.

Researchers broaden their focus beyond male anatomy.

Photonic technology boosts efficiency of warm, wasteful bulbs.

University restricts his access to graduate students after upholding their complaints.

Particles consisting of four and five quarks make a comeback.

Some scientists see Nicaragua's plans for a Grand Canal as a boon for an ailing land; others predict ecological catastrophe.

Adaptations that gave our ancestors an evolutionary edge can cause major problems for modern humans

Researchers tweak the genetic lottery for children with rare diseases

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Criteria for disease causation must take microbial interactions into account

Peptides from long noncoding RNAs control a muscle calcium pump [Also see Report by Nelson et al.]

Cap-independent translation by IRESs can occur from various locations in mRNA [Also see Research Article by Weingarten-Gabbay et al.]

The emission of a terahertz laser is controlled by graphene carrier density [Also see Report by Chakraborty et al.]

In situ measurements reveal details of the production and evolution of the lunar exosphere [Also see Report by Colaprete et al.]

Strained rings are appended to compounds of pharmaceutical interest through the use of even more highly strained precursors.

Ribosomal translation of both human and viral RNAs does not always require scanning from the 5′ end. [Also see Perspective by Gebauer and Hentze]

A layer of graphene is used to control the emission spectrum of a laser. [Also see Perspective by Polini]

The Moon's tenuous atmosphere varies over each month and after meteoroid streams. [Also see Perspective by Dukes and Hurley]

Amino acids can reversibly complex with aldehydes and ketones to direct palladium-catalyzed formation of carbon-carbon bonds.

The most luminous supernova yet found was glimpsed in an unusual host galaxy.

Injuries to a mammoth carcass indicate that humans penetrated Siberia as far as 72°N 45,000 years ago.

Phytoplankton convert more sunlight to heat than to fluorescence or photosynthesis.

Songs that birds have already learned are preserved by inhibitory neurons that block further modifications.

A long noncoding RNA encodes a small peptide that activates a calcium pump regulating muscle contraction. [Also see Perspective by Payre and Desplan]

An energy-sensing kinase phosphorylates a mitochondrial membrane protein that initiates fragmentation.

Posttranscriptional modification of messenger RNAs (mRNAs) is prevalent in Drosophila and promotes mRNA translation.

Reactivation of fetal globin gene expression may enable treatment of hemoglobinopathies.

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