... About 100 kilometers from the Moon's South Pole, 100 kilometer wide crater Cabeus is the target for two LCROSS mission spacecraft on course to impact the Moon tomorrow. ... The Lagoon Nebula from GigaGalaxy Zoom . ... The above illusion, called the same color illusion, illustrates that purely human observations in science may be ambiguous or inaccurate. ... These colorful panels both feature a familiar northern hemisphere astronomical sight: the stellar nursery known as the Great Orion Nebula. ...