Jo Steer
speaker
4,248 appearances
10 recordings
1 series
first heard May 2026
last heard 6 Sep
Jo Steer’s voice in public audio — every appearance, attributed to the second.
Trend
recordings per month · last 12 monthsRecordings per month over the last 12 months — 10 in all, peaking in Jul 2026 with 3.
Appearances
and weighed five hundred and seventy five pounds each.
They were outfitted with imaging systems and
and an array of rather science fiction sounding instruments.
These were a cosmic dust detector and cosmic ray telescope.
An ionization chamber
A helium magnetometer.
A trapped radiation detector.
and something called a solar plasma probe.
The first craft failed.
And was lost during launch.
The second, Mariner four, is
made it to Mars after an eight-month journey.
Arriving in july nineteen sixty five.
Mariner 4 recorded the first ever close-up pictures of the planet.
These gave humanity a detailed peek at the Martian surface.
Revealing stunning extraterrestrial views.
Like huge craters glazed with frost.
It was a turning point.
In the study of Mars.
Over the following years, many more spacecraft would leave Earth, headed for the Red Planet.
Showing 1361–1380 of 4,248 · page 69 of 213
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