Prof. Dan Shechtman of the Technion–Israel Institute of Technology made the discovery that would later earn him the 2011 ...

Laser diodes are semiconductors that generate light and amplify it using repeated reflection or "optical feedback." Once the ...

There are “a lot of unknowns about who was where on the streets” when the plane crashed, and it is possible that the casualty figures will grow in the coming days, Thiel said. The plane hit ...

NORTHEAST PHILADELPHIA - Philadelphia officials say a total of seven people have died and at least 19 people are injured after a medical transport plane carrying a pediatric patient, her mother ...

PHILADELPHIA (WPVI) -- Video shows a plane rapidly falling from the sky before crashing on Friday night in Northeast Philadelphia.

An Army helicopter crash with American Airlines Flight 5342 over the Potomac River on Wednesday night, killing all 64 people on board the plane and the three soldiers in the helicopter. James ...

First responders work the scene after a small plane crashed in Philadelphia, Friday, Jan. 31, 2025. (AP Photo/Matt Rourke) ...

A medical ambulance plane transporting a young girl who had just received life-saving treatment crashed on a street Friday night near the Roosevelt Mall in Philadelphia, Pennsylvania. Jet Rescue ...

Two new videos have emerged capturing Wednesday’s midair collision of a passenger plane with a military helicopter in Washington, D.C., offering a clearer view of the catastrophe that killed 67 people ...

open image in gallery Some of the many victims of the Washington plane crash. Top row L-R: Jonathan Campos, Samuel Lilley, Ian Epstein, Andrew Eaves. Bottom row L-R: Danasia Elder, Ryan O'Hara ...