Michael Kucharek, a spokesman for NORAD, said his agency heard about the sightings, too, and can confirm it was not from anything man-made, like a plane or falling satellite.
Michael Kucharek, a spokesman for NORAD, said his agency heard about the sightings, too, and can confirm it was not from anything man-made, such as a plane or falling satellite.
The NASA scientist said the odds of an operational satellite being disabled by space debris remain quite small, though he points out that two have been lost after being hit by man-made debris -- a French satellite in 1996 and an American craft in 2009.