BEIJING, June 15 (Xinhuanet) -- When an elementary school science teacher in the Chicago suburb of Palatine wants to take a look at what's going on inside the space shuttle Atlantis she turns on her video baby monitor.

    One of the two channels on Natalie Meilinger's baby monitor has been picking up black-and-white video from inside the Atlantis since Sunday. The other still lets her keep watch on her baby.

    "Whoever has a baby monitor knows what you'll usually see," Meilinger said. "No one would ever expect this."

    Live video of the mission is available on NASA's website, so it's possible the monitor is picking up a signal from somewhere.

    "It's not coming straight from the shuttle," NASA spokeswoman Brandi Dean said. "People here think this is very interesting and you don't hear of it often ¡ª if at all."

    Meilinger silenced disbelieving co-workers by bringing in a video of the monitor to show her class on Tuesday. At home, 3-month-old Jack and 2-year-old Rachel don't quite understand what their parents are watching.

    "I've been addicted to it and keep waiting to see what's next," Meilinger said.

    Summer Infant, the monitor's manufacturer, is investigating what could be causing the transmission, communications director Cindy Barlow said. She said she's never heard of anything similar happening.

    (Agencies)