Voyager 1 Never Left the Solar System — By the Measurement That Counts
The Atlas Of The Universe
1,512 views
Twenty-five billion kilometres away, a machine from 1977 is still talking to Earth on the
power of a light bulb. This documentary follows Voyager 1 and Voyager 2 from the
once-every-176-years planetary alignment that made them possible, through the volcanoes
of Io and the price of Titan, to the day Voyager 1 left the Sun's bubble — and the
year-long detective story it took to prove it. Then the honest question: has Voyager
actually left the solar system? The answer depends on which of THREE edges you mean —
and it has crossed only one of them.
Every number in this episode is a measurement, cited below. Real Voyager photographs,
real NASA data and visualizations — no AI-generated imagery, ever.
CHAPTERS
00:00 A signal from twenty-five billion kilometres
01:44 The once-in-176-years alignment
03:35 1977: two launches, 3.5 seconds to spare
06:03 Jupiter: volcanoes on Io
08:25 Saturn, and the price of Titan
10:25 The Pale Blue Dot
12:12 The power countdown
14:14 The first edge: termination shock
16:14 August 25, 2012: leaving the bubble
18:21 What interstellar space is actually like
20:17 Where they are now
22:20 The three edges
24:16 The Golden Record, and onward
SOURCES (fact log — selected)
· Grand Tour alignment: Flandro, Astronautica Acta, 1966 · NASA History Office
· Launch anomalies & spacecraft specs: NASA/JPL Voyager mission documentation
· Io volcanism: Morabito et al., Science, 1979; prediction: Peale, Cassen & Reynolds, 1979
· Titan flyby results: NASA Voyager Saturn encounter reports, 1980–81
· Pale Blue Dot: NASA/JPL, Feb 14 1990 (Earth = 0.12 pixel from ~6 billion km)
· RTG power: NASA/JPL Voyager power status reports (Pu-238 half-life 87.7 yr, ~4 W/yr)
· Termination shock: Stone et al., Science, 2005 (V1, 94 AU) & 2008 (V2, 84 AU)
· Heliopause crossing: Gurnett et al., Science, 2013 (V1, Aug 25 2012, 121.6 AU)
· V2 crossing: Nature Astronomy, Nov 2019 (Nov 5 2018, 119 AU, direct plasma data)
· Interstellar plasma hum: Ocker et al., Nature Astronomy, 2021
· 2024 memory-chip recovery: NASA/JPL releases, Apr–Jun 2024
· Golden Record & Gliese 445: NASA/JPL Voyager pages
Full per-claim fact log maintained for every episode.
IMAGERY CREDITS
NASA/JPL-Caltech (Voyager images: Jupiter, Io, Saturn, Uranus, Neptune, Pale Blue Dot,
Earth-Moon 1977, spacecraft model, Golden Record) · NASA Goddard Scientific Visualization
Studio (heliosphere) · ESO/S. Brunier (CC BY 4.0) · NASA/ESA/STScI (HUDF) · NASA (Apollo 17) ·
Original diagrams by The Atlas of the Universe.
Music: original score generated for The Atlas of the Universe.
#space #voyager #nasa #astronomy #documentary
1 Comments
Voyager 1 Never Left the Solar System — By the Measurement That Counts
The Atlas Of The Universe
1,512 views
Twenty-five billion kilometres away, a machine from 1977 is still talking to Earth on the
power of a light bulb. This documentary follows Voyager 1 and Voyager 2 from the
once-every-176-years planetary alignment that made them possible, through the volcanoes
of Io and the price of Titan, to the day Voyager 1 left the Sun's bubble — and the
year-long detective story it took to prove it. Then the honest question: has Voyager
actually left the solar system? The answer depends on which of THREE edges you mean —
and it has crossed only one of them.
Every number in this episode is a measurement, cited below. Real Voyager photographs,
real NASA data and visualizations — no AI-generated imagery, ever.
CHAPTERS
00:00 A signal from twenty-five billion kilometres
01:44 The once-in-176-years alignment
03:35 1977: two launches, 3.5 seconds to spare
06:03 Jupiter: volcanoes on Io
08:25 Saturn, and the price of Titan
10:25 The Pale Blue Dot
12:12 The power countdown
14:14 The first edge: termination shock
16:14 August 25, 2012: leaving the bubble
18:21 What interstellar space is actually like
20:17 Where they are now
22:20 The three edges
24:16 The Golden Record, and onward
SOURCES (fact log — selected)
· Grand Tour alignment: Flandro, Astronautica Acta, 1966 · NASA History Office
· Launch anomalies & spacecraft specs: NASA/JPL Voyager mission documentation
· Io volcanism: Morabito et al., Science, 1979; prediction: Peale, Cassen & Reynolds, 1979
· Titan flyby results: NASA Voyager Saturn encounter reports, 1980–81
· Pale Blue Dot: NASA/JPL, Feb 14 1990 (Earth = 0.12 pixel from ~6 billion km)
· RTG power: NASA/JPL Voyager power status reports (Pu-238 half-life 87.7 yr, ~4 W/yr)
· Termination shock: Stone et al., Science, 2005 (V1, 94 AU) & 2008 (V2, 84 AU)
· Heliopause crossing: Gurnett et al., Science, 2013 (V1, Aug 25 2012, 121.6 AU)
· V2 crossing: Nature Astronomy, Nov 2019 (Nov 5 2018, 119 AU, direct plasma data)
· Interstellar plasma hum: Ocker et al., Nature Astronomy, 2021
· 2024 memory-chip recovery: NASA/JPL releases, Apr–Jun 2024
· Golden Record & Gliese 445: NASA/JPL Voyager pages
Full per-claim fact log maintained for every episode.
IMAGERY CREDITS
NASA/JPL-Caltech (Voyager images: Jupiter, Io, Saturn, Uranus, Neptune, Pale Blue Dot,
Earth-Moon 1977, spacecraft model, Golden Record) · NASA Goddard Scientific Visualization
Studio (heliosphere) · ESO/S. Brunier (CC BY 4.0) · NASA/ESA/STScI (HUDF) · NASA (Apollo 17) ·
Original diagrams by The Atlas of the Universe.
Music: original score generated for The Atlas of the Universe.
#space #voyager #nasa #astronomy #documentary
definition, false by another, and unmeasurable by a third. The three edges are at 30 AU,
122 AU, and ~100,000 AU, and Voyager 1 has crossed exactly one of them (measured, in
plasma, in 2012). Sources in the description.
A question for you: which fact surprised you more — that interstellar space is DENSER
than the space around the planets, or that Voyager 1 missed the Atlantic Ocean by three
and a half seconds of fuel? And if you spot an error anywhere, say so below. We correct
things publicly.