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Image of the Day
NASA's X-57 Hybrid Electric Research Plane

Visit NASA's Image of the Day Gallery and see what's happening in spaceflight now.

Image of the Day Gallery

Juno
Juno

Juno will arrive at Jupiter on July 4, 2016 with the goal to improve our understanding of the formation, evolution, and structure of the planet. Learn more here.

Latest ScienceCast
Twinkle Twinkle GPS YouTube Video

Dynamic bubbles of ionization in Earth's upper atmosphere can cause GPS signals to "twinkle" like stars, affecting the quality of navigation on Earth below.

Watch our latest ScienceCast: Twinkle Twinkle GPS