Indianapolis Colts quarterback Jacoby Brissett’s strange question about outer space roped Pittsburgh Steelers quarterback Joshua Dobbs into the conversation.

Brissett asked in a tweet: “If the sun is hot how is outer space cold?”

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The tweet received nearly 2,000 replies on Twitter, but it was Dobbs who answered Brissett.

Dobbs, who is entering his third season with the Steelers, told Brissett that “space is a vacuum.” He added, “There’s no air.”

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Brissett responded: “I’ve never put my hand inside A vacuum.”

Dobbs appeared to crack up at the response.

It didn’t appear that Andrew Luck’s backup quarterback got his answer.

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He appeared to move on from his quest to find the answers about space and asked Thursday, “which part of the pig’s skin is actually a football?”