Abstract: This article proposes two optimization schemes for the position of elements in sparse circular spherical array with low sidelobes based on genetic algorithm. The first optimization scheme is ...

The danger from artificial intelligence isn’t a Terminator-style robot uprising but tech capitalists using the technology to ...

Philip Ball dives into the challenges in developing quantum computing, and building up investments and users for the tech ...

And with another edition of this nearly century-long rivalry set to kick off on Sunday, we’re bringing back an old feature: ...

How do you map something you can’t see? For astronomers studying the Milky Way, the answer lies in radio waves-the very lowest frequencies that slip past the dust and gas obscuring our galaxy’s heart.

It is difficult to spot and track objects in cislunar space—the vast area between the Earth and the Moon—for a variety of ...