Researchers 'unzip' 2D materials with lasers

In a new paper published on May 1 in the journal Science Advances, researchers at Columbia Engineering used commercially available tabletop lasers to create tiny, atomically sharp nanostructures, or nanopatterns, in samples ...

Malians struggle to cope after deadly heat wave

In Mali's capital Bamako, Aboubacar Pamateck runs a scarf under a trickle of water and wraps it around his head to cope with the West African nation's soaring heat.