None
ES
When a Soviet Venera 13 lander touched down on Venus in March 1982, it survived 127 minutes in 465-degree heat and 90 atmospheres of pressure — long enough to photograph orange rock in yellow sky and record the wind — before the acid air ate through its seals and the transmissions stopped mid-sentence
['The Long View', 'A Science Blog Column', 'The Long View Steps Back. A Single Finding Rarely Means Much On Its Own', 'So This Desk Connects New Research To What Came Before It', 'Across Physics', 'Biology', 'Medicine', 'Everything In Between.', 'Read The Column', 'How We Edit']
ScienceBlog.com
The lander was Venera 13.
The result was not the ordinary answer: the Venera 13 site returned a potassium-rich alkaline basalt, close to terrestrial leucite basalts.
Why nobody has gone backThe obstacle is the same obstacle Venera 13 solved for 127 minutes.
Nothing on the books is designed to survive on the surface longer than Venera 13 did.
The wind recordingOf everything Venera 13 sent back, the microphone data is the piece that gets the least attention and is arguably the strangest.