Recent Articles

Astrophysics

Synopsis: Throwing Dust at Planet Formation

Astrophysicists dropped beads onto clumps of dust to better understand how planets coalesce from particulates. Read More »

Fluid Dynamics

Viewpoint: Cloud Drops Stick Together

An imaging probe on an airplane observes the clustering of water droplets in clouds, confirming a predicted effect that is correlated with rainfall. Read More »

Optics

Focus: How to Locate a Nanoparticle with Sub-angstrom Precision

Laser tricks allow nanoparticle position measurements with a record 0.6-angstrom uncertainty, which will be useful in future nanotech devices. Read More »

Atomic and Molecular Physics

Synopsis: Ion Suppresses Rydberg Creation

Forming an ion in an ultracold atomic cloud delays the subsequent creation of a Rydberg atom until the ion wanders away. Read More »

Cosmology

Synopsis: Dark Matter Blowing Like a Hurricane

The dark matter in our stellar neighborhood may be moving at high speed, which might produce a signature that future dark matter searches could detect.   Read More »

Nuclear Physics

Synopsis: Detecting Nuclear Decay with Recoil

Small particles levitated in an optical trap can recoil from radioactive decays in a way that identifies their nuclear composition, a new theoretical study suggests. Read More »

Acoustics

Focus: How Cracks Interact with the Sounds They Make

The acoustic waves emitted by a propagating crack can affect the crack’s motion and the marks it leaves behind. Read More »

Quantum Information

Viewpoint: Record Distance for Quantum Cryptography

An optical-fiber-based quantum cryptography scheme works over a record distance of 421 km and at much faster rates than previous long-distance demonstrations. Read More »

Fluid Dynamics

Synopsis: Gravity-Driven Flows in Two-Fluid Drops

The direction in which fluid circulates in binary drops doesn't change when the drops are tilted, implicating gravity—not surface tension—as the driver of flow in these systems. Read More »

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