Voyager program is an American scientific program that employs two robotic interstellar probes, Voyager 1 and Voyager 2.
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18 Facts About Voyager program
2.
Voyager program did things no one predicted, found scenes no one expected, and promises to outlive its inventors.
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3.
On 25 August 2012, data from Voyager program 1 indicated that it had entered interstellar space.
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4.
On 5 November 2019, data from Voyager program 2 indicated that it had entered interstellar space.
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5.
At Uranus, Voyager program 2 discovered a substantial magnetic field around the planet and ten more moons.
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Voyager program spacecraft were built at the Jet Propulsion Laboratory in Southern California and funded by the National Aeronautics and Space Administration, which financed their launches from Cape Canaveral, Florida, their tracking and everything else concerning the probes.
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Voyager program 1 was launched after Voyager program 2, but along a shorter and faster trajectory that was designed to provide an optimal flyby of Saturn's moon Titan, which was known to be quite large and to possess a dense atmosphere.
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The New Horizons probe, which had a higher launch velocity than Voyager program 1, is travelling more slowly due to the extra speed Voyager program 1 gained from its flybys of Jupiter and Saturn.
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10.
In December 2004, Voyager program 1 crossed the termination shock, where the solar wind is slowed to subsonic speed, and entered the heliosheath, where the solar wind is compressed and made turbulent due to interactions with the interstellar medium.
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11.
In 2010 Voyager program 1 reported that the outward velocity of the solar wind had dropped to zero, and scientists predicted it was nearing interstellar space.
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12.
In June 2012, Scientists at NASA reported that Voyager program 1 was very close to entering interstellar space, indicated by a sharp rise in high-energy particles from outside the Solar System.
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13.
In September 2013, NASA announced that Voyager program 1 had crossed the heliopause on 25 August 2012, making it the first spacecraft to enter interstellar space.
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14.
In December 2018, NASA announced that Voyager program 2 had crossed the heliopause on 5 November 2018, making it the second spacecraft to enter interstellar space.
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15.
The Voyager program spacecraft are expected to be able to operate science instruments through 2020, when limited power will require instruments to be deactivated one by one.
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16.
The Voyager program Interstellar Mission is a mission extension, which began when the two spacecraft had already been in flight for over 12 years.
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17.
Voyager program 1 crossed the heliopause boundary in 2012, followed by Voyager program 2 in 2018.
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18.
Voyager program 1 completed the phase of termination shock in December 2004 at a distance of 94 AU while Voyager program 2 completed it in August 2007 at a distance of 84 AU.
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