A huge outline of an Aboriginal man in the desert outside of Marree, in southern Australia, was discovered Friday. The outline is four kilometers long, and the people(?) who created it have not come forward. A local charter pilot has been besieged with requests to fly over the figure. Another source says the local constable claims to have found toilet paper in the area of the 19-mile outline of a man with a stick or wand in his hand, suggesting a human origin to the art. There is still dispute at this time whether or not it is manmade. If it is manmade, it is the largest piece of art on Earth, as well as the biggest graffiti ever.

Photos released Wednesday of Ganymede, the largest moon in the solar system and satellite of Jupiter, show a crater chain created when the moon was smacked by 13 comet fragments. There is a suggestion of an early ocean beneath its surface from which water was shot through volcanoes. Scientists are investigating the possibility of life on Ganymede. According to a Brown University planetary scientist, "You have heat, liquid water, organic material coming in from impacts from meteorites - the ingredients are there." Bigger than Mercury and three-quarters the size of Mars, about half of Ganymede's surface is bright, clean ice. The other half is dark, heavily cratered terrain made up of "dirty" rocks and ice. Because so much of the moon is icy, scientists wonder if liquid water existed in the past, or whether there is a warm layer of liquid underneath. Some of the new images show several signs of water, including large valleys where it appears water flowed down into surrounding lowlands.

A new NASA program - Near-Earth Object Program Office - will detect, track, and study asteroids and comets that could strike the Earth. It will follow at least 90% of the estimated 2,000 asteroids and comets that are at least two-thirds of a mile wide. The person who will head the office, David Yeomans, and a colleague are the ones who debunked a report from the International Astronomical Union about an asteroid that was headed to within 30,000 miles of Earth's center, and might hit, in October 2028. Rumor is that with the release of "Deep Impact" and "Armageddon" the powers that be in Washington DC felt it would be prudent to fund this office at this time.