A man covered in volcanic ash rides his motorcycle in Yogyakarta after Mount Kelud eruptes on the heavily populated Indonesian island of Java, sending a huge plume of ash and sand 17 km (10 miles) into the air.ReutersA huge storm system (an extratropical cyclone) coils over the United Kingdom, as photographed from space.Reuters/NASAA street sign is partially covered by flood waters in Worcester.ReutersIcicles cling to a street sign in Durham, North Carolina.GettyDaphne Kiplinger and her husband Dave Steadman sculpt a Snowbama in Dupont Circle, Washington DC.GettySnow collects at the base of the escalators at the Dupont Circle Metrorail Station in Washington DC.GettyEmergency personnel examine a train derailment near Vandergrift, Pennsylvania after a120-car Norfolk Southern Corp train carrying heavy Canadian crude oil derailed and spilled.ReutersTibetan monks look on as a giant thangka, a religious silk embroidery or painting of Buddha, is unveiled at Langmu Lamasery in Gannan Tibetan Autonomous Prefecture.ReutersThe Google logo is spelled out in heliostats (mirrors that track the sun) during a tour of the Ivanpah Solar Electric Generating System in the Mojave Desert near the California-Nevada border.ReutersSylvester Stallone appears with actress Margo Seibert who plays Adrian and Andy Karl who stars as Rocky, at a preview performance of Rocky the musical on Broadway.ReutersGrant and Koko the chimpanzees tuck into tasty treats dished up in heart-shaped hampers to get them in the mood for Valentine's Day at ZSL Whipsnade Zoo, Bedfordshire.ZSL Whipsnade ZooAn African penguin pulls a Valentine's Day card from a member of staff at the California Academy of Sciences in San Francisco.GettyThe Duchess of Cornwall chats to prisoner Gary Bird who shows her with a Valentine's Day card he printed in the prison print shop as she visits HM Prison Coldingley in Woking.GettyThe moon rises over the lights of the Bolshoy Ice Dome during the 2014 Sochi Winter Olympics.ReutersA woman takes pictures of lanterns floating on Donghu lake ahead of the Lantern Festival, in Wuhan, Hubei province, China.ReutersFirecrackers go off next to people during Beehive Rockets Festival, ahead of the Lantern Festival, in Tainan, southern Taiwan.ReutersA performer stands on nails during Lantern Festival celebrations in Singkawang, Kalimantan, Indonesia.Getty