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
There are Four Ways to Build with Regolith on the Moon
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Over the last few years I have been renovating my home. Building on Earth
seems to be a fairly well understood process, after all we have many
different ...
10 hours ago
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