Inside the hangar where the Soviet space shuttle was left behind
The Buran programme flew once, uncrewed, in 1988. Its prototypes ended up in a Baikonur hangar, gathering dust and pigeon feathers under a roof that once collapsed.
The Wow! signal: 72 seconds that still lack an answer
In August 1977 a radio telescope in Ohio picked up a strong narrowband signal. An astronomer circled it on the printout and wrote Wow! in the margin.
A town where everyone lives in one building
Whittier, Alaska and its single tower.
The longest-running lab experiment
A pitch drop that falls about once a decade.
The Voynich manuscript is still unread
A 600-year-old book in an unknown script.