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Mars once had a climate conducive to life. ... On Earth, such deltas are excellent environments for preserving organic materials and even fossils transported by gentle downstream currents.
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Who Will Get to Mars Fir
Explore the race to Mars! Discover NASA, SpaceX, and China's plans, their groundbreaking goals, and the challenges of reaching the Red Planet.
Mariner 4, built by JPL in Pasadena, took the images on July 14, 1965. One of the mission's leaders reflects on decades of ...