Jo Steer
speaker
4,901 appearances
12 recordings
1 series
first heard May 2026
last heard 2d ago
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 — 12 in all, peaking in Sep 2026 with 4.
Appearances
NASA launched two spacecraft designed to fly by Mars, like the silenced Soviet missions and return photos and scientific observations.
One of them.
would succeed.
The ships named Mariner III and Mariner four were
launched from Cape Canaveral Air Force Station in Florida in nineteen sixty four.
They ran on solar power.
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.
Showing 1681–1700 of 4,901 · page 85 of 246
← Previous
Next →