Traffic Lights Could Have a 4th Color in The Future. Here's Why.

Can two hurricanes merge? The Fujiwhara Effect explainedCalifornia Attorney General Seeks to Block Transgender Notification Policy

Rescue Helicopter Crashes Into Florida Apartment Building, Killing 2Flash Flooding in West Virginia Prompts Dozens of RescuesU.N.C. Faculty Member Is Fatally Shot in Lab

Former Trump chief of staff Mark Meadows takes the stand in Georgia casePope Francis blasts "backwards" U.S. conservatives, "reactionary attitude" in U.S. church

UNC faculty member killed in campus shooting and a suspect is in custody, police say

Passenger says airline lost her dog after it escaped and ran off on the tarmac"Cheer" star indicted on new child sex solicitation charges

FKA twigs sues Shia LaBeouf over alleged sexual assault and "relentless abuse"Marvel will not recast the character of T'Challa in "Black Panther 2" to honor Chadwick Boseman's legacy

Disney unveils new content featuring Marvel and Star Wars seriesBarbara Windsor, star of "Carry On" and "EastEnders," dies at 83