Most scientists agree that the impact of an asteroid hitting Earth played a major role in the extinction of dinosaurs but now there's a brand new theory about how exactly that happened.
Federal health advisers voted overwhelmingly against an experimental treatment for Lou Gehrig’s disease at a Wednesday meeting prompted by years of patient efforts seeking access to the unproven therapy.
President Joe Biden announced Wednesday that federal disaster assistance is available for Louisiana, which is working to slow a mass inflow of salt water creeping up the Mississippi River and threatening drinking water supplies in the southern part of the state.