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(Natural News) Liquid water once covered much of the surface of Mars. A recent study has proposed that the flowing water owed its existence to asteroid impacts that heated the planet during its early years. Space probes and Martian landers have found plenty of evidence for the presence of streams, rivers, ponds, and lakes on ancient Mars. The... |
from NaturalNews.com https://ift.tt/2YlKHUE
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