A roundup of weekly science policy and related news.

Opponents of Prime Minister Stephen Harper try to make his record on research an issue in election.

Medicine award honors pioneers who developed powerful drugs against malaria and roundworms.

Observations by Japanese and Canadian teams proved ghostly particles can change identity and have mass.

Pinning down molecules key to finding a host plant paves the way for new controls on the parasite.

Study in twin brothers finds link between DNA methylation and sexual orientation.

First genome of an ancient African suggests widespread mixing with farmers from the Middle East.

Migratory bird populations in Asia are crashing as Yellow Sea habitat dwindles.

The bizarre properties of liquid helium transfixed generations of physicists. But its spell is fading.

Historical case studies offer insights into the future of interdisciplinary scholarship

The rise of solar energy and the path ahead for America's renewable energy sector

A listing of books received at Science during the week ending 02 October 2015.

Sustainability as dietary guidance created political debate

An inducible secondary wall system reveals how most plant biomass is synthesized [Also see Report by Watanabe et al.]

Mutation load correlates with the response of melanomas to immunotherapy [Also see Report by Van Allen et al.]

Worries about fraudulent data should give way to broader critiques of Mendel's legacy

Can some infections "scar" the immune system?

The spatial organization of internal membranes influences receptor signaling and disease [Also see Report by Wheeler et al.]

Controlling the coordination of platinum boosts catalytic reaction rates [Also see Reports by Calle-Vallejo et al. and Ding et al.]

Curiosity reveals evidence for ancient lakes on Mars [Also see Research Article by Grotzinger et al.]

An atomic-resolution analysis provides insight into protein complexes required for autophagy, endocytic sorting, and cytokinesis.

Mount Sharp now stands where there was once a large intercrater lake system. [Also see Perspective by Chan]

Reverse Monte Carlo refinements of neutron diffraction data are used to deduce a model of ordered 10-spin loops in Gd₃Ga₅O₁₂.

Scanning tunneling microscopy is used to observe chiral solitons in double chains of indium atoms on a silicon substrate.

Detailed comparison of exposed atom coordination can guide the design of a metal surface for heterogeneous catalysis. [Also see Perspective by Stephens et al.]

Infrared spectroscopy reveals that carbon monoxide oxidizes more readily on supported noble metal nanoparticles than on isolated atoms. [Also see Perspective by Stephens et al.]

Erosion rate and sliding velocity have a nonlinear relationship in the Franz Josef alpine glacier.

A small intervention breaks down barriers in math-anxious households.

Cellulose synthesis in secondary plant cell walls is focused in spiral wall thickenings during xylem cell development. [Also see Perspective by Schneider and Perssonn]

Features of the ligand-binding pocket explain how a parasitic plant receptor is exquisitely sensitive to host plant hormones.

Melanoma patients who respond to immunotherapy do not appear to share common tumor neoantigens. [Also see Perspective by Gubin and Schreiber ]

Mutations that disrupt protein trafficking can contribute to cancer development. [Also see Perspective by Ferguson]

Elevated amounts of a viral noncoding RNA that suppresses host immunity likely led to an outbreak of dengue virus.

On this week's show: A math app that helps math-anxious parents boost their kids' achievement and a roundup of daily news stories.

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