... A curious cold layer in the atmosphere of Venus . ... This image of the Venus southern hemisphere illustrates the terminator т?? the transitional region between the dayside (left) and nightside of the planet (right). ... Venus Express has spied a surprisingly cold region high in the planetт??s atmosphere that may be frigid enough for carbon dioxide to freeze out as ice or snow. ... The curious cold layer is far frostier than any part of Earthт??s atmosphere, despite Venus being much closer to the...