Sources at two government contractors told NBC News they were worried that new warehouses — and the large numbers of immigrants who would be housed in them — would present safety problems.

ALT: a man covering his face with his hand in front of a red tile wall

Nicholas Spada is one of the only scientists in the world using a nuclear x-ray process to study deadly nanoparticles in wildfire smoke. What he’s uncovered in California is a nightmare.

Geneticist explains recent analyses made possible by tech advances show human history to be one of mixing, movement, displacement.

Delta State University staff found the body of 21-year-old student Demartravion “Trey” Reed hanging from a tree in the middle of campus on Monday.