For more than 20 years, the European Space Agency's (ESA) Mars Express orbiter has been imaging the surface of the Red Planet. One region, in particular, continues to fascinate the Mars Express team, ...
India Today on MSN
How satellites stay in space: Why they don't fall back to Earth
Often misunderstood as "hovering," satellites are actually in constant free-fall, perpetually missing Earth's surface as the ...
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