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Cassini Death.jpg

This Friday September 15th is the final day of the astounding Cassini mission. The robotic space probe just took a final picture of Titan (which was arguably the site of the mission’s most breathtaking discoveries) and now the little spacecraft turns towards Saturn’s north pole and the grand finale…a plunge into the crushing atmosphere of the gas giant planet. A joint effort between NASA and the Italian space agency, Cassini launched in 1997 (the year I came to New York) and for 20 years it has sailed the solar system. In 2004, the craft reached Saturn and it has been discovering moons, taking pictures, and otherwise exploring the system ever since. Cassini even launched a lander to the surface of Titan, a super moon with a thick atmosphere and methane oceans.

All good things must end though, and Cassini is out of fuel. Mission scientists did not wish to leave the craft orbiting for thousands of years and they also hoped to get a last trove of data (and jolt of publicity) from the mission…so the controllers opted to fly Cassini straight into the planet to learn whatever they can before the minivan sized probe blows apart and/or is crushed. Sadly there is no camera to record this melodramatic demise (which the denizens of Earth will want to see) so I have created my own rendition of the craft’s final descent using the magic of art (image at top). Since Saturn does not have an oxidizing atmosphere (probably?) and Cassini does not talk (probably?) I took a few artistic liberties, however I think I got the great hexagonal storm on the gas giant pretty well and I also captured some of the endearing personality of an astonishing robot explorer which will be dearly missed.

Two weeks ago I was back at my Alma Mater, the University of Chicago.  As a special treat I got to go on a tour of the nearly finished Mansueto Library book depository, which is being built as an addition to the Regenstein library. The Mansueto depository is housed in a lovely oval dome made of glass, but the real heart of the library is five stories underground, where a huge steel rack holds thousands of uniformly sized metal boxes.  These boxes are indexed in a computer database.  When the depository is finished, these boxes will be filled with books and periodicals of the same size (to create maximum efficiency).  Once a reader requests a book, huge robot cranes mounted on metal rails (in the fashion of trains) will zip to the correct box and route it to an industrial elevator up to the surface world. The Mansueto depository will hold 3.5 million books.

A Cross Section Diagram of the Mansueto Book Repository

The Regenstein library, a huge brutalist limestone building on 57th street, already houses 4.4 million books.  A large part of the library’s charm is the easy- to-browse stacks: if you wish to look up 8th century Byzantine emperors you can find an entire shelf of books about them. Scholars and students appreciate the unexpected discoveries and ideas which spring from such an arrangement (although I spent far too much time in the Regenstein browsing increasingly off-topic books which called out to my fancy). The librarians in charge of the Mansueto project did not wish to sacrifice this aspect of the stacks, so the Mansueto will largely house periodicals and academic journals (which aren’t easy to browse without an index anyway).  Books about related subjects will continue to be grouped together in a fashion visible to library patrons.

The Mansueto Depository takes shape beside the Regenstein Library

My tour group was one of the last groups of people allowed down into the Mansueto depository. Once the staff starts moving books into it, the cranes will be active and the space will become dangerous.  Then only technicians and service professionals will be allowed down into the temperature and humidity controlled space. Before seeing the apparatus, I kind of imagined the library as being like a computer browser: one types in a title and the relevant information magically appears. But the tour revealed how naïve such thinking was.  The robot workings of the huge depository were amazing to behold and their scale was unnerving. Serious and remarkable engineering went in to the building of the complex–which reminded me less of a library and more of the modernized steel foundry which I visited many years ago.  Like that foundry, the underground compound had the unearthly feeling of a place humans aren’t really meant to be in.  The scale of everything was wrong. The shelves were inhumanly large whereas the walkways were too small to be comfortable.  The dry cold air smelled of steel and electronics.  Yellow warning signs were inscribed all around the huge motionless robot librarians and it was easy to imagine them springing to life and going on a crushing rampage.

A Robotic Crane in the Mansueto Depository

Here is a colleague beside the metal shelves to give you a sense of scale

When the Mansueto is full, the Regenstein will be the largest collection of books under the same roof in North America. It may be one of the last edifices of its kind. Digital information is supplanting traditional printed books and magazines everywhere, and I feel a bit as though I am describing the scroll repositories of the library of Alexandria (even if I’m actually describing a state-of-the-art triumph of robotics). I hope the digital revolution does not undo printing and libraries to the extent that has been forecast.  Standing in the beautiful dome and looking out at the gothic campus I felt like I was visiting a future built around books rather than a dreary future without them.

The Gothic Buildings of the University of Chicago Quads seen from the Mansueto reading room

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