TheAstronomerJohn's channel

This is a zoom into a simulated model of the globular star cluster Omega Centauri. All the stars appear to be moving in random directions, like a s...

This visualization shows one segment of ARTEMIS orbital paths. The satellite trails are are constructed in a lunar-centric inertial coordinate syst...

A small and simple video, but I think the idea is easily understood.

How can cake ingredients be whipped into a moon-like crater? This activity works in classrooms, camps and at home.

NASA's STEREO (Ahead) spacecraft watched as an eruptive prominence rose up and arched out in a horseshoe shape far above the Sun's surface (Aug. 25...

Nasa video availiable on http://www.nasa.gov/multime...

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