Here's a video created by astronaut Don Petiit aboard the International Space Station. It's a series of still photos of the Aurora taken from the vantage point of the High Frontier. Notice how thin our envelope of atmosphere is......humbling a little.
Here's the vid
Here’s Why We Should Put a Gravitational Wave Observatory on the Moon
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Scientists detected the first long-predicted gravitational wave in 2015,
and since then, researchers have been hungering for better detectors. But
the Ea...
4 hours ago
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