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Scientists captured this striking image of the Apollo 15 landing site by shooting a powerful radar signal from Earth into space and bouncing it off the lunar surface. The thin, meandering channel running through the middle of the image is the Hadley Rille, a scar left on the moon after past volcanic activity, likely a collapsing lava tube, according to a statement from the National Radio Astronomy Observatory (NRAO). The circular dent pictured near the rille is Hadley C, a crater about 3.7 miles (6 kilometers) in diameter. Scientists spent two years developing the technology to take these detailed images...

LOS ANGELES The newest spacecraft circling Mars has spotted the landing site of the 1997 Pathfinder probe including what appears to be its discarded protective backshell and parachute lying on the surface, and possibly its little rover Sojourner. The bird's-eye view beamed back by the Mars Reconnaissance Orbiter should give scientists a better idea of the Pathfinder lander's descent and the mission's last days. In one of the high-resolution images taken last month, Pathfinder's mobile sidekick Sojourner appeared to have rolled closer to the stationary lander, which sent its last transmission 12 weeks after landing. Scientists were able to discern...