It a Bird, It a Plane, It a... Spacecraft?
Observing the sky with the green filter of it panoramic camera, NASA Mars Exploration Rover Spirit came across a surprise: a streak across the sky, probably the brightest object in the sky at the time.
Observing the sky with the green filter of it panoramic camera, NASA Mars Exploration Rover Spirit came across a surprise: a streak across the sky, probably the brightest object in the sky at the time.