Long PDFs slow people down for all kinds of reasons. Sometimes the file is too dense to skim quickly. Sometimes you need the key points without reading every page. Sometimes the document is in another ...

An 18th-century archaeological dig uncovered a library of intact but charred scrolls. Their contents have been unreadable ...

Genome editing lets scientists rewrite DNA, the instruction manual inside every living cell, with a precision that was unthinkable a generation ago. Technologies such as CRISPR have made this almost ...