加拿大多伦多，“城市血管”流速加快。
摄影：GARY CUMMINS
上世纪90年代，中国江苏盱眙，一年一度的小龙虾节吸引了成千上万食客，也吸引George Steinmetz“飞”了过来。
摄影：George Steinmetz
美国威斯康辛州格林利夫一个奶源农场，由人工授精窝点孕育出的小牛被安置在3300个棚屋里。
摄影：George Steinmetz
沙特阿拉伯南部的鲁卜哈利沙漠，若干绿油油的麦田怪圈整齐散落在沙漠上，每个怪圈的直径都超过800米，麦田中心有深达200米的水井。
摄影：George Steinmetz
荷兰蒙斯特Koppert Cress温室顶棚，这样设计LED照明是为最大限度提高生长效率，玻璃也会将光线反射到植物上，最大限度减少光污染。
摄影：George Steinmetz
George Steinmetz的腿悬吊在滑翔伞上，正试图在撒哈拉沙漠中的一座死火山上方拍摄，当时的空中高度1700米，也是他第一次使用滑翔伞拍摄。
A dog with blue fur sits in a cage
ANASTASIA MAKARYCHEVA / REUTERS
A dog with blue fur in a cage awaits attention at a veterinary hospital in Nizhny Novgorod, Russia. A pack of stray dogs with blue fur was found earlier this month near an abandoned chemical plant in the city of Dzerzhinsk.
Lava flows down the side of Mount Etna at night
FABRIZIO VILLA / GETTY IMAGES
Lava flows down the side of Mount Etna, Europe's most active volcano. It erupted on Tuesday and again in the early hours of Thursday, sending hot lava and ash clouds into the Sicilian sky. Nearby towns are being monitored by local authorities.
A view of Jezero Crater
NASA
A video still from footage by Nasa's Perseverance Mars rover shows the surface of the planet after touchdown in Jezero Crater. The six-wheeled vehicle will spend at least two years drilling into rocks, looking for evidence of past life. The crater is thought to have held a giant lake billions of years ago.
Snow falls on ancient ruins in Athens
MILOS BICANSKI / GETTY IMAGES
Snow falls on the Temple of Athena Nike on the Acropolis in Athens. Temperatures as low as -19C (-2.2F) have been recorded in the north-western city of Florina. Prime Minister Kyriakos Mitsotakis has urged people to stay at home.
A woman holds a yoga pose in her narrowboat
VICTORIA JONES / PA MEDIA
Yoga teacher Harriet McAtee conducts a yoga class on her 6ft (1.8m)-wide narrowboat in Oxford. The coronavirus pandemic has forced Harriet to hold her classes via Zoom video calls, reaching students as far away as New Zealand.
A Sumatran elephant calf receives medical attention at the Saree elephant conservation centre in Saree, Indonesia.
CHAIDEER MAHYUDDIN/AFP
An elephant calf receives medical attention at the Saree elephant conservation centre in Sumatra's Aceh province, after being rescued from mud in Pidie district.
People skate on a frozen canal in a residential area of the Netherlands
PIERRE CROM / GETTY IMAGES
Ice-skating fever is gripping the Netherlands after days of sub-zero temperatures froze lakes, ponds and canals across the country, including this area of Delft. Prime Minister Mark Rutte said: "Take advantage of the good weather and the ice - but do it under Covid-19 measures."
An aerial view of a collapsed terrace house in Bury, Greater Manchester
PETER BYRNE / PA MEDIA
The body of a 61-year-old woman was found after a house collapsed in Ramsbottom, Greater Manchester, on Wednesday evening. Fire investigators said it "would not be appropriate to speculate on a probable cause" while the investigation continues.
Police officers stand outside an entrance to the King Edward VII Hospital in London
EAMONN M. MCCORMACK / GETTY IMAGES
Police officers stand outside the King Edward VII hospital in London, where the Duke of Edinburgh is currently receiving treatment. Prince Philip, 99, was said to be in "good spirits" after being admitted on Tuesday, feeling unwell. Buckingham Palace says his stay is not related to coronavirus and is expected to last for a few days.
People stand and read books in a giant bookstore
TENG ZHIZHONG / GETTY IMAGES
A vast array of books is on display at Songpo bookstore during the Spring Festival holiday in Shaoyang, Hunan Province, China.
俯瞰埃特纳火山喷发
February 21, 2021 - 欧空局公布一张地球观测卫星拍摄的短波红外成像照片，意大利埃特纳火山（Mount Etna）正在剧烈喷发，岩浆从海拔超过3200米的火山口涌出。埃特纳火山2月中旬再次进入活跃状态，最近1周发生3次剧烈喷发，岩浆蔓延超过4公里。这座火山位于亚欧板块和非洲板块交汇处，是欧洲最活跃、海拔最高的火山，上一次大规模喷发为2002年。摄影师：ESA
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