Edward C. Stone

Assembled from 67 blocks · 1 evidence · 65 related

1. Story
2. The physicist who served as Voyager project scientist from 1972 — five years before launch — until he stepped down in 2022, an unbroken tenure of half a century over a single mission that has no obvious parallel in spaceflight. He was also director of the Jet Propulsion Laboratory for eleven years in the 1990s. His role in the Voyager record is partly scientific and partly evidential: he was the person who repeatedly declined to declare an interstellar crossing until the plasma data supported it, which is why the announcement of Voyager 1's 2012 crossing was made in September 2013 rather than in 2012. He died in June 2024.
3. Knowledge
4. Voyager 1
5. Voyager 2
6. Edward C. Stone
7. Connections
8. Voyager 1
9. Voyager 2
10. The 2012 crossing is confirmed from plasma oscillations
11. The Grand Tour alignment
12. Voyager 2
13. Multi-Hundred-Watt radioisotope thermoelectric generator
14. Titan
15. NASA Deep Space Network
16. Gravity assist
17. Jet Propulsion Laboratory
18. Launch Complex 41, Cape Canaveral
19. Jupiter
20. Saturn
21. Titan
22. Voyager high-gain antenna
23. Plasma Wave Subsystem (PWS)
24. Titan IIIE-Centaur
25. Edward C. Stone
26. The Voyager Golden Record
27. Carl Sagan
28. Pale Blue Dot
29. The full Grand Tour is cancelled and rebuilt as a two-spacecraft mission
30. Voyager 1 launches
31. Voyager 1 closest approach to Jupiter
32. Active volcanism found on Io
33. Voyager 1 passes Saturn and Titan, and leaves the plane of the planets
34. Voyager 1 photographs the solar system from outside it
35. Voyager 1 crosses the termination shock at about 94 AU
36. Voyager 1 crosses the heliopause at 121.6 AU
37. The 2012 crossing is confirmed from plasma oscillations
38. Voyager 1's cosmic ray subsystem is switched off
39. Voyager 1's low-energy charged particle instrument due for shutdown
40. Voyager 1 reaches one light-day from Earth
41. Voyager 1
42. The Grand Tour alignment
43. Multi-Hundred-Watt radioisotope thermoelectric generator
44. DSS-43, Canberra Deep Space Communication Complex
45. Gravity assist
46. Jet Propulsion Laboratory
47. Launch Complex 41, Cape Canaveral
48. Jupiter
49. Neptune
50. Saturn
51. Uranus
52. Cosmic Ray Subsystem (CRS)
53. Titan IIIE-Centaur
54. Edward C. Stone
55. The Voyager Golden Record
56. The full Grand Tour is cancelled and rebuilt as a two-spacecraft mission
57. Voyager 2 launches
58. Voyager 2 closest approach to Jupiter
59. Voyager 2 passes Saturn and continues towards Uranus
60. Voyager 2 reaches Uranus — the only close encounter ever made
61. Voyager 2 passes Neptune and Triton, ending the planetary programme
62. Voyager 2 crosses the termination shock at about 84 AU
63. Voyager 2 crosses the heliopause at 119 AU
64. Voyager 2's low-energy charged particle instrument is switched off
65. The "Big Bang" power manoeuvre on Voyager 2
66. Evidence
67. The canonical mission record for both spacecraft: launch dates of 20 August 1977 (Voyager 2) and 5 September 1977 (Voyager 1), the Titan IIIE-Centaur launch vehicle, Launch Complex 41 at Cape Canaveral, the eleven-instrument science payload and the three-generator power system. V55 verification basis: THE CATALOGUE WAS NOT REACHED. nssdc.gsfc.nasa.gov returned EGRESS_BLOCKED when fetched and the search budget was exhausted before it could be searched; the COSPAR designations and every fact attributed here come from standard mission record held in general knowledge, not from the catalogue. This record names where a curator should check, not what was checked.