Punit

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Watch The Earth’s Seasonal “Heartbeat” From Outer Space

This simple animated GIF captures the seasonal cycle of snow and grass, death, and rebirth.<p><i>John Nelson is known for building extremely complex visualizations of weather patterns. But his latest creation is a simple animated GIF of 15 frames from NASA’s cloudless satellite photography collection.</i> …

The Science of Stealth

A technician guides a paint sprayer to coat an F-117 Nighthawk. Painting the first F-117 took five workers five days; thereafter, a team at Sandia …

The Stealth Bomber Elite

“Undetected inbound, unscathed outbound.” That’s how one pilot summarized his mission to bomb targets in Baghdad with the $2.2 billion Northrop …

Leonardo da Vinci, Birdwatcher

At first glance, it’s a jumble of disconnected information: how to crush diamonds, how to mix paints of strong blue or red, observations on the …

Who Flew First?

The possibility that someone may have flown a powered airplane before the Wright brothers is back in the news. Over the years a number of candidates …

From NASA’s Archives, 50 Amazing Photos Of The Apollo Moon Missions

We pay homage to the Apollo missions with the best of NASA’s deep archives.<p>In May of 1961, President John F. Kennedy made a promise to put a man on the Moon–and return him back safely–by the end of the decade. Somehow, it worked.<p>Over 50 years later, it’s easy to forget how ambitious Kennedy’s …