Science and technology

Associated Press
Specialist Glenn Carell, foreground, works with traders at his post that handles Twitter, on the floor of the New York Stock Exchange, Wednesday, July 29, 2015. Twitter sank 10 percent after reporting sluggish customer growth. (AP Photo/Richard Drew)

View gallery

500 photos

Astronomy, meteorology, environment, archaeology, electronics, computers and gadgets

View Comments (0)