The BBC understands the portrait was of singer Van Morrison and remained covered for a month after its installation.

It’s time to catch up on our viewer comments. Up first, reaction to the one-year anniversary of Detroit’s beautifully restored Michigan Central Station.

Mercury, the closest planet to the Sun, is a world of blazing heat, freezing nights, and endless mysteries. Recent photos from NASA’s space probes have unveiled new details about this hostile planet, ...

NASA astronaut Don Pettit has just shared a beautiful shot of the Grand Canyon captured from the space station during his recent stay there.