One of the experiments from the Apollo 11 mission, the retroreflector array, is still in operation and providing valuable data 50 years later.

Excel has announced a new array-based function called SORT, which can be used to sort data in one or more columns without involving a manual sort process or a complicated macro process.

Microsoft is opening up Excel to developers with a new JavaScript API. It will let developers use custom data types like images, cards, and arrays.