Passenger jet with 64 aboard collides with Army helicopter [Video]

Roy Best, who witnessed the crash between a passenger plane and an Army helicopter, describes watching it happen from a building rooftop. (Source: CNN, WJLA)

Trump holds a moment of silence for victims of plane collision before his press conference. (Source: POOL)

“A dark and excruciating night,” Trump said as he held a press conference on the fatal plane collision (Source: POOL)

A fossilized piece of animal vomit dating back 66 million years was found on a Denmark beach. (Source: Sten Lennart Jakobsen via CNN Newsource, Canva, DCC Gray)

No one is believed to have survived the collision between a passenger jet and Army helicopter Wednesday night. (Source: Earthcam, WJLA, WUSA, Getty Images, CNN Newsource)

NASA’s two stuck …