Based on the finite-difference time-domain method with inhomogeneous grid and GPU parallel computing, this paper establishes the propagation model of very low frequency (VLF) waves in the ionosphere.

The White House is gearing up for a patriotic celebration this Fourth of July, with plans that include a bill signing.

Low Battery: ‘Heat Dome’ Exposes Cracks in America’s Decaying Power Grid Rising temperatures and massive new data centers are providing a massive stress test for the US power grid.

American consumers aren’t feeling great. They’ve been feeling bad about everything from prices to the stock market. They’ve felt so bad, in fact, that Michigan’s Index of Consumer ...

The trend continues with two new off-Broadway openings, “Trophy Boys” at MCC Theater, and “Lowcountry” from the Atlantic Theater Company.

Medicaid patients don't have a right to freely choose their medical provider, the Supreme Court ruled 6-3 on Thursday, in a case that carries major implications for Planned Parenthood. Why it matters: ...

Reaching Iran's most fortified nuclear enrichment site is a challenge, even for the world's biggest conventional weapons.

“A low-wage job is homelessness waiting to happen,” he adds, as unemployment remains at a generational low.