'Castle' Season 7 News, Spoilers: Partners Castle and Beckett Wearing Spacesuits

Last week's showing of the hit police procedural TV drama series "Castle" Season 7 saw the crime-solver lovebirds Kate Beckett (Stana Katic) and Richard Castle (Nathan Fillion) getting back together as a team. Fans were already excited to see the duo working back to back.

Episode 16 titled "The Wrong Stuff" will deal with a mystery case that will certainly catch the attention of its viewers.

A synopsis posted on The Futon Critic indicated that Castle and Beckett are sent off to investigate, while donning spacesuits, a murder case of an astronaut who was found dead while undergoing training for a trip to Mars. The intriguing part of the story is that the latter is said to have been killed while inside a sealed Mars simulation chamber which no one from the outside could easily gain access to.

Will it just be ruled out as a suicide case or is there some foul play going on?

Executive producer David Amann shed some light about the curious astronaut death case.

"It's basically murder on Mars," he told TV Guide. "There's a Mars simulation with astronauts who've been locked away in a Mars environment for six months, and one of them is murdered. But none of them could have done it -- nobody could have gotten in. So Castle and Beckett have to put on spacesuits and go talk to people."

In a separate interview with TVLine, the showrunner went on to add that the upcoming episode would feed Castle's fantasy of becoming a space traveller while also serving as a "palette cleanser" after the tensioned two-parter episode.