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VOYAGER FULL HISTORY EXPLAINED IN TAMIL
||TAMIL SIGARAM
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#Voyager1
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Voyager 1 is
a space probe launched by NASA on September 5, 1977. Part of the Voyager
program to study the outer Solar System, Voyager 1 was launched 16 days after
its twin, Voyager 2. Having operated for 42 years, 2 months and 3 days as of
November 9, 2019, the spacecraft still communicates with the Deep Space Network
to receive routine commands and to transmit data to Earth. At a distance of
147.380 AU (22.0 billion km; 13.7 billion mi) from Earth as of November 4, 2019
it is the most distant man-made object from Earth.
The probe's
objectives included flybys of Jupiter, Saturn, and Saturn's largest moon,
Titan. Although the spacecraft's course could have been altered to include a
Pluto encounter by forgoing the Titan flyby, exploration of the moon took
priority because it was known to have a substantial atmosphere. Voyager 1
studied the weather, magnetic fields, and rings of the two planets and was the
first probe to provide detailed images of their moons.
After
completing its primary mission with the flyby of Saturn on November 12, 1980,
Voyager 1 became the third of five artificial objects to achieve the escape
velocity required to leave the Solar System.On August 25, 2012, Voyager 1
became the first spacecraft to cross the heliopause and enter the interstellar
medium.
In a further
testament to the robustness of Voyager 1, the Voyager team completed a
successful test of the spacecraft's trajectory correction maneuver (TCM)
thrusters in late 2017 (the first time these thrusters were fired since 1980),
a project enabling the mission to be extended by two to three years.
Voyager 1's
extended mission is expected to continue until about 2025 when its radioisotope
thermoelectric generators will no longer supply enough electric power to operate
its scientific instruments.
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