One of our favorite retro hardware enthusiasts, [CuriousMarc], is back with the outstanding tale of preserving Apollo Program software, and building a core rope reader from scratch to do it. We&#82… ...

If you want read-only memory today, you might be tempted to use flash memory or, if you want old-school, maybe an EPROM. But there was a time when that wasn’t feasible. [Igor Brichkov] shows … ...

Signals from seismic sensors left on the lunar surface by Apollo astronauts in the 1970s have revealed new insight into the moon's core, thanks to a fresh analysis using 21st century computing power.

On Apollo 1, during a launch rehearsal test on Jan. 27, 1967, all three astronauts on board — Gus Grissom, Ed White, and Roger B. Chaffee — died when a fire swept through the command module.

What they found was that the lunar inner core is solid and about 500 km (310 miles) in diameter or about 15% of the Moon's total size and is made of a metal with roughly the density of iron.