Legendary Apollo 11 astronaut Buzz Aldrin recalled several “unusual” phenomena he and the crew encountered during the first moon-landing mission, according to a trove of UFO-related documents released Friday. Aldrin, the second person to walk on the moon, explained three specific oddities he saw during a technical crew debriefing a week after they’d safely splashed back down on Earth in July 1969. “The first unusual thing that we saw I guess was one day out or something pretty close to the moon. It had a sizable dimension to it, so we put the monocular on it,” Aldrin said, noting the crew speculated it was the Saturn V launch vehicle. The Apollo 11 technical debriefing was among the UFO files release. Another inexplicable observation “accumulated gradually,” the astronaut said, according to the documents . “I don’t know whether I saw it the first night, but I’m sure I saw it the second night. I was trying to go to sleep with all the lights out.…