It is a universally acknowledged truth that a curious reader in want of a good book needs only direct their footsteps (and questions) to the nearest librarian. Librarians, after all, are always a font of good book suggestions.

Updated at 5:30 p.m. ET

Investigators are now poring over the scene where former NBA superstar Kobe Bryant, his daughter Gianna and seven other people died Sunday in a helicopter crash in Calabasas, Calif. It's not clear why the craft went down, although weather conditions at the time were difficult. The National Transportation Safety Board has sent a team to the site and is now leading the probe.

New imagery from commercial satellites that was shared with NPR suggests Iran is making repairs and preparing for a space launch, following a recent string of failed attempts.

The imagery, taken Sunday by the commercial firm Planet and shared via the Middlebury Institute of International Studies at Monterey, shows vehicles parked at a building used to assemble Iran's space rockets at the Imam Khomeini Space Center in northern Iran. A second group of vehicles is visible at a circular launch pad that was heavily damaged during failed launch preparations last year.