Submitted by GiveMeTheFullerenes t3_10v8fnz in space
Basically the title; It’s a friends 18th and I’m making one of those letter-art galleries, and painting small photos of cool space photos, and writing thier stories on the back of the letter - of course having some reference to her birthday.
Eg: story of the mariner 4 probe whose researchers colored a wall according to the 1’s and 0’s they received, and ended up with a pre-visualization of the photo the probe sent back before actually processing the image.
Waddensky t1_j7g4bi4 wrote
What a great idea!
A little-known fact is that Galileo observed Neptune in 1633 while studying Jupiter, 233 years before the planet was actually discovered in 1846. He thought it was a background star. A 2009 study even suggests that Galileo was well-aware of Neptune's movement and therefore could be credited as the discoverer of the 8th planet.
This paper has some of Galileo's sketches of Jupiter and Neptune, you might be able to use these in your gallery.