Before Apollo 11 made history by successfully shuttling the first humans to the moon in 1969, the space program was in desperate financial condition and President John F. Kennedy had his grandparents mortgage their apartment for the money to keep NASA running. Er, no -- we're getting our stories mixed up here.

The bit about the grandparents mortgaging their home to keep a company running is actually the story behind Rovio, the creators of Angry Birds. Rovio was mainly backed by CEO Mikael Hed's dad and it hadn't produced a hit in years before Angry Birds; it was Hed's dad who proposed the family-mortgage plan.

"He told me that he wanted to mortgage my grandparents' flat so he could put some more money in the company to keep it afloat," Hed told All Things D. "That was pretty tough. I certainly did not want to be the person responsible for putting my grandparents on the street."

Hed doesn't have to worry about that now, as Angry Birds is a smash (HA!) hit and Rovio is valued at more than $6 billion. The next game from Rovio is Angry Birds Space, due out for iOS, Android, PC and Mac on March 22, and whose out-of-this-world adorable trailer you can view above.