- Switchable counterion gradients around charged metallic nanoparticles enable reception of radio waves
Stripping counterions from charged nanoparticles into a porous electrode enables current rectification at radio frequencies.
- Synthesis of stable and low-CO2 selective ε-iron carbide Fischer-Tropsch catalysts
Phase-pure ε-iron carbide catalysts amenable to scale-up exhibit low CO2 selectivity and high stability in the FT reaction.
- Wide-field multiphoton imaging through scattering media without correction
Focusing ultrashort laser pulses in time in tandem with single-pixel detection images at depth with no sample characterization.
- Uranium polyhydrides at moderate pressures: Prediction, synthesis, and expected superconductivity
Formation of uranium polyhydrides UH5–9 is predicted using the evolutionary algorithm USPEX and proved by high-pressure synthesis.
- A high-entropy alloy with hierarchical nanoprecipitates and ultrahigh strength
HEAs’ compositional space allows the design of hierarchical microstructures that contribute to the exceptional strength values.
- Shaping nanoparticle fingerprints at the interface of cholesteric droplets
Nanoparticles are organized into tunable, periodic patterns by controlling interfacial assembly with cholesteric liquid crystals.
- Quantum interference mediated vertical molecular tunneling transistors
We report graphene/self-assembly monolayer vertical molecular transistors operating in the quantum tunneling regime.
- Tunable structure and dynamics of active liquid crystals
Activity tunes elastic properties and defect interactions in nematic liquid crystals.
- Optically transparent, high-toughness elastomer using a polyrotaxane cross-linker as a molecular pulley
We prepared a mechanically tough, highly transparent elastomer by using a polyrotaxane cross-linker acting as a molecular pulley.
- Unraveling the long-pursued Au144 structure by x-ray crystallography
A mysterious, long-pursued structure of a nanocluster-nanocrystal transition-sized nanoparticle is unraveled.
- Tracking time with ricequakes in partially soaked brittle porous media
Timing your breakfast? Soak cereal in milk, apply pressure, and get recurring collapses whose sound resembles a slowing metronome.
- Cryo-EM structure of P. falciparum circumsporozoite protein with a vaccine-elicited antibody is stabilized by somatically mutated inter-Fab contacts
An unprecedented spiral structure of the malarial CSP protein in complex with a protective antibody is revealed by cryo-EM.
- The IgM pentamer is an asymmetric pentagon with an open groove that binds the AIM protein
We demonstrate the bona fide 2D structure of the IgM pentamer and its association with AIM protein.
- Gravitational collapse of Mount Etna’s southeastern flank
Gravitational collapse of Mount Etna’s SE flank: New seafloor geodetic data capture active displacement of underwater volcanic flank.
About The Cover
COVER While the existence of exomoons—moons orbiting extrasolar planets—is probable, direct observational evidence of that existence has been elusive. Previous observations made using NASA's Kepler space telescope offered suggestions that Kepler-1625b, a Jupiter-sized planet orbiting the Solar-mass yellow star Kepler-1625, may be orbited by an exomoon. Now, Teachey and Kipping report additional observations made using the Hubble Space Telescope, as well as a refined analysis of Kepler photometry data, that strongly support the exomoon hypothesis. Their work suggests that this moon, if it exists, would be similar in size to Neptune or Uranus in our own Solar System. While the authors caution that their results must be confirmed by subsequent studies, the moon of Kepler-1625b ultimately could be the first confirmed exomoon. [CREDIT: DAN DURDA, FELLOW, INTERNATIONAL ASSOCIATION OF ASTRONOMICAL ARTISTS]