Modern Engineering Marvels on MSN

Mars-orbit cameras track a visitor from another star system, up close

The engineering lesson is simple: Sometimes the best observatory is the one already parked at another planet. When an ...
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NASA’s MAVEN went silent on Mars, here’s what we know

NASA’s veteran Mars orbiter MAVEN has slipped into an unnerving quiet, cutting off a decade of continuous atmospheric monitoring from high above the red planet. Engineers are now racing to understand ...