article_snippet.sent: In infrared, region 1 is cooler than rest of surface, but 5 is located in a region that is similar in temperature to surroundings.
article_snippet.sent: The upper trio is Region 1 at visible, infrared and thermal infrared wavelengths. 
article_snippet.sent: At thermal infrared, the spot is dark - meaning the spot is colder than the spot surroundings. 
article_snippet.sent: In thermal infrared, the spot disappears .
article_snippet.sent: But feature five, which appears as two separate bright spots next to each other in visible images, didn't show up in the infrared images. '
article_snippet.sent: no distinct thermal behaviour,' Spot number five shows no distinct thermal behaviour said.
article_snippet.sent: It may be due to having a different structure, or being made from different material.
highlights_snippet.sent: Feature one is cooler than rest of surface, but give is in a region that is similar in temperature to surroundings .
  