Cities and organizations in the US state of Maryland have found an original and ecologically sound method to cut the weeds from their parks and gardens: Bring in the goats.
Elias Konstantopoulus runs through an optics test with his "bionic" eye glasses during a session at the Lions Vision Research and Rehabilation Center at Johns Hopkins University in Baltimore, Maryland. Konstantopoulus is blind but working with Johns Hopkins University he has been implanted with a microchip and given a set of glasses that enable him to distinguish between light and dark.
Two NASA research aircraft will fly over the Baltimore-Washington area of northeastern Maryland through July as part of a mission to enhance the measurement of ground-level air quality from space.