This week was this way
Left: Are aeroplanes brightening US skies? Detail from The Rocky Mountains: Lander’s Peak by Albert Bierstadt
Right: British astronaut Tim Peake enters International Space Station. Christmas Eve spacewalk, 2013
Top: Britain unites in rejection of Leytonstone tube attacker, service information board on the London Underground
Bottom: Assemble win the Turner prize, Assemble and Will Shannon’s Granby Workshop project at Build Your Own exhibition, Norwich, co-curated by Thirteen Ways’ Clare Cumberlidge
Left: 2016 Pirelli Calendar may signal a cultural shift. Annie Leibovitz, photographer and for the 2016 calendar.
Right: Mark Zuckerberg is giving away his money, but with a Silicon Valley twist. Facebook headquarters in Palo Alto, California.
Left: Cats takeover #BrusselsLockdown on Twitter. Belgian citizens respond to police calls to not tweet about raids with pictures of cats. Nightlight in the form of a cat, Anonymous, c.1760
Right: Sketch not Selfie. Visitors to the Rijksmuseum put away their cameras and pick up their pencils to take part in the museum’s #startdrawing campaign