Neutron stars harbor some of the most extreme environments in the universe: their densities soar to several times those of ...

When the densest objects in the universe collide and merge, the violence sets off ripples, in the form of gravitational waves, that reverberate across space and time, over hundreds of millions and ...

A mysterious striped signal from the Crab Pulsar may finally be explained by a delicate balance between plasma effects and gravitational lensing.

Abstract: In this paper, a wideband frequency selective surface (FSS) with excellent angular stability is proposed. The angular stability of the FSS unit is improved by increasing the thickness of the ...

A metamaterial elongates the propagation path of sound waves, allowing low-frequency noise control without the need for bulky materials.

University of Oregon astronomer Yvette Cendes made a surprising discovery years after a black hole shredded a star. What is ...