did this series ever go for the awards?
They were nominated for an Annie Award, and the episode "It Came from the Nightosphere" was nominated for a Primetime Emmy Award for Outstanding Short-format Animated Program.
Adventure Time (season 2)
nominated for an Annie Award, and the episode "It Came from the Nightosphere" was nominated for a Primetime Emmy Award for Outstanding Short-format Animated Program. 
adventure time with finn & jake season 2 episode 1 "It Came from the Nightosphere" who created this series? Pendleton Ward in which platform did this premiere on? Cartoon Network who are the main characters of this series? Finn, Jake, a dog with magical powers, Princess Bubblegum, The Ice King etc can you tell me some details about the first mentioned character? UNANSWERABLE
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Adventure Time (season 2) [SEP] Introduction
The season ended with the episode "Heat Signature" on May 9, 2011. It was viewed by 1.975 million viewers, which marked an increase from the first-season finale. The season was originally supposed to end with the cliffhanger two-parter "Mortal Folly"/"Mortal Recoil", but due to a scheduling error, "Heat Signature" was the last episode to air for the season. In 2011, Adventure Time was nominated for an Annie Award, and the episode "It Came from the Nightosphere" was nominated for a Primetime Emmy Award for Outstanding Short-format Animated Program. The series nor the episode won, however. Several compilation DVDs that contained episodes from the season were released after the season finished airing.