77
1768 days ago
Another angle of the PGT. This is a programmable power screwdriver for all of those pesky Hubble screws.
Blueshift: Bringing the Universe down to Earth with podcasts, blogs, and more!
77
1768 days ago
Another angle of the PGT. This is a programmable power screwdriver for all of those pesky Hubble screws.
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