A train runs through the leafy tunnel, delivering wood to the factory, near the town of Klevan, east Ukraine. The tunnel is actually a three-kilometre section of private railway that serves a nearby fibreboard factory. [Picture: Amos Chapple / Rex Features]

Puebla, Mexico: The Popocatépetl volcano spews a cloud of ash and steam high into the air. [Photograph: Reuters via Guardian]

A plume of ash and steam rise from the Popocatepetl volcano overshadowing the Catholic church ‘Nuestra Señora de los Remedios’ or ‘Our Lady of Remedies’ in Cholula, Mexico, April 22. [Marco Ugarte / AP via MSNBC]

North Korean military parade seen from outer space : A handout satellite image from DigitalGlobe taken on April 15 and released April 17 shows a military parade winding through the center of Pyongyang, North Korea. North Korea’s Kim Jong Un delivered his first major public speech on April 15 as the impoverished state celebrated the centenary of its founder’s birth, calling for a push to “final victory” despite a failed rocket launch two days earlier.

A full moon rises behind the New York City skyline seen from Eagle Rock Reservation in West Orange, N.J., Friday, April 6, 2012. (AP Photo/Julio Cortez)

Daffodils that have been left to flower at Fentongollan Farm on Wednesday near Truro, England. Despite the gloomy economic outlook, some retailers are reporting a surge in demand for daffodils, which have been traditionally grown in Cornwall as it is one of the mildest counties in the UK. Many of the cut-flower businesses still in existence today were established in the Victorian era when the new railway transport network put once remote locations in touch with the London markets. | Matt Cardy / Getty Images

A green gecko on a palm trunk at Vallee de Mai natural reserve, a Unesco world heritage site, in Praslin island. Bursts of torrential rain have lashed the idyllic white beaches of the Seychelles, where conservationists fear that rare species such as the giant tortoise are at severe risk from climate change.

Drought reveals old cemetery in Bosnia reservoir: The 70-year-old Sunken cemetery is seen after the Jablanicko lake dried up near Jablanica. The dams on the Neretva river near the lake feed a system that normally produces an average of 2,000 megawatt-hours of electricity per year, but the drought that began in August has shrunk output to just a quarter of that amount. The drought has also forced cash-strapped nations to import more power at higher prices. Bosnia, normally the one net power exporter in the region, paid 20 million Bosnian marka (14.4 million) to import electricity in January, compared with January 2011 when it earned 70 million marka from power exports. (source)

Peleas de Abajo, Spain: A kitten sits in a deserted street in the country’s most indebted town. The debt per inhabitant has risen to nearly €20,000. (source)

I have to say, that somber fact has been dimmed by the cute kitty.  Awww

WaaoooW: The solar storm that sparked so much debate this week got its second wind overnight, rewarding aurora aficionados from the Arctic to the Lower 48 to Australia. (source)

The aurora borealis, or the northern lights, illuminate the sky above the village of Kraknes in northern Norway, Feb. 18. (source)

Full moon rises over London: A plane passes in front of the moon as it rises over Albert Bridge on Feb. 7, 2012 in London.  (source)

The Ice Tree: An ice-covered tree on the frozen waterside of the boardwalk of Lake Geneva, in Geneva, Switzerland, on Feb. 6, 2012. A cold spell has reached Europe with temperatures plummeting far below freezing. (EPA)