Decision time — NASA’s New Frontiers

By Adam Hadhazy

June 2019

NASA has limited dollars for exploring the solar system with robotic spacecraft, and it can take a decade to get such a probe to its destination. Careers are made or stalled when NASA selects a proposed mission, which is why the agency’s latest New Frontiers competition is such a high-stakes affair. Adam Hadhazy spoke to the finalists vying for the prize.


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Engineering Notebook

For Vahana, a study in coping with complexity

By Keith Button

June 2019

Urban air mobility concepts tend to be odd-looking airframes covered with propellers. The innovations promise maneuverability and energy efficiency, but they also bring aerodynamic complexities. How does one control such an aircraft? Keith Button spoke to the designers of Vahana, the Airbus urban air mobility demonstrator, to find out.


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Human Spaceflight

Apollo 11’s 50th anniversary calendar

By Debra Werner

April 30, 2019

Get a head start on participating in the activities being planned by cities, agencies and museums across the U.S. and in other countries.

Human Spaceflight

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Earth Sciences

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