The Presidential Daily Brief

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  1. Mars illustration shutterstock 565442626

    NASA’s Mars Lander Braces for Bumpy Landing

    The InSight probe is scheduled to touch down Monday — as long as it can stop itself from violently crashing into the Martian surface. A successful landing means abruptly slowing from 12,000 mph to just 5 mph with the help of parachutes. But the Red Planet’s thin atmosphere makes that especially challenging: Only 40 percent of landings are successful. Once it has parked itself on flat land and extended its solar arrays, InSight will deploy a heat probe and a seismometer to study the planet’s geographical features and detect “Marsquakes.”

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