The late Microsoft co-founder Paul G. Allen's fascination for space lives on through the auction of his collection. Christie's has corralled a slew of space artifacts and other innovative memorabilia from Allen's collection for a monumental auction event. As per the Houston Chronicle, the three-pronged auction includes such gems as the painting "Saturn as Seen from Titan" by Chesley Bonestell, valuing between a neat $30,000 and $50,000, and a letter from one Albert Einstein to FDR, which might fetch between $4 million to $6 million.

Allen's interest in both art and space exploration is evident. For instance, fragments of Collier’s "Man Will Conquer Space Soon!" series surface in the online auction titled "Over the Horizon: Art of the Future from The Paul G. Allen Collection". Christina Geiger, head of Christie's rare books and manuscripts department, recognized the significance of such pieces. "This is a collection that was assembled to illustrate the inspiring nature of scientific exploration and achievement that were such a part of Paul Allen's remarkable life," she told collectSPACE.

Historical spaceflight artifacts make a commanding presence in this selloff. An intricate spacewalk checklist from Gemini IV, noting the first American spacewalk, along with a spacesuit cover layer donned by astronaut Edward H. White II, have been thrown into the mix and are projected to rake in five to six figures.

Among the historic and artistic items are an Apple-1 computer from Steve Jobs' early days and a menu from the RMS Titanic. A hefty portion of the proceeds from this sale will go to philanthropic causes, continuing Allen's legacy of giving, according to the Houston Chronicle. Bidding for "Over the Horizon" and "Firsts: The History of Computing from The Paul G. Allen Collection" will conclude on September 12, while the "Pushing Boundaries" part of the action is a live affair, set to kick off on September 10 in New York.