Apple’s new foldable iPhone Duo can do many things, including side-by-side screen multitasking and hands-free video viewing at different angles.

Quick take: United’s new “Elevated” Polaris business class represents a sophisticated step forward for the airline. Hopefully the closing privacy

X-ray: NASA/CXC/Univ. of Alabama/M. Muhibullah et al.; Optical: NASA/ESA/STScI; Image Processing: NASA/CXC/SAO/N. Wolk Using NASA’s Chandra X-ray Observatory, scientists have