3 Mar 2019

Sucess story of voyager 1 and voyager 2 !

“Two interstellar travellers”

Interstellar traveller
This infinitely spreaded universe became a topic for our curiosity from the day when we starts thinking about it. And our curiosity helps us to keep focus in exploring this cosmos.

Night sky is attracting humans by the time, when they saw it they start thinking, “what are these objects twinkling and shining in dark-night sky”. And when human technologies develop, they finally got the answer of their question.
our telescopes helps us to see stars and planets which was a mystery for us before it’s discovery.

When we understand that the objects in the night sky in nothing but stars like sun and planet like earth. Again we observe our sky with a better and advanced telescopes and then we study about our moon, and planets like Mercury, Venus , Mars, Jupiter, Saturn, Uranus, Neptune  and the dwarf planet Pluto. But, we didn’t stop here, and continue our tries to explore this universe. 

For exploration of celestial bodies which was founded by telescopes, we launches many spaceships and probes. As we can’t reach to any planets because the distance between earth and any other planet is too much for a human life to travel with today’s spaceships.
This is the reason, why humans are launching large number of probes instead to spaceship. Some probes reaches to its destiny, some gets failed in its mission but some of them creates history. Voyager 1 and voyager 2 are among  of them.

Voyager 1

Voyager 1

This space probe was launched under the voyager program on 5th September in 1977 to study the parts of the solar system where we were unable to reach. The age of this probe was 41 years and 5 months in February of 2019 and the probe is still communicating with us. This probe helps us to study outer planets of our solar system, like Jupiter and Saturn and also their moon like Titan.

Astronomers also want to study Pluto with the help of this probe but they are not able to do so because of its scattered axis. The distance from earth to voyager 1 was 145AU in February of 2019 which is the farthest distance reached by any object from earth. Now the voyager 1 mission is extended to 2025.


In March 1979, voyager 1 was closest to Jupiter and in 1980, it was closest to Saturn and study about their surface and their moon ‘titan’. And voyager 1 gives us an idea about the atmosphere of titan.

Voyager 2

Voyager 2

This space probe was launched on 20 August in 1977 which is 16 days before its twin voyager 1. The trajectory of this probe varies from the trajectory of voyager 1.
This probe was also launched with the intention to study the outer planets which was completed by voyager 2 in 1989 by studying the Uranus and Neptune.

Voyager 2 become the first probe to study these gas giant because voyager 1 was not able to study these gas giants. After the exploration of these gas giant voyager 2 leaves our solar system.

Voyager 2 is continue doing  job from 41 years and 6 months in February 2019. Voyager 2 was launched before its twin but now it is overtaken by voyager 1 because of its trajectories. Voyager 2 travels a distance of 120AU in February 2019.

Voyager 2 is among one of those space probe which is able to reach the escape velocity and allow themselves to leave the solar system. On 5 November 2018 voyager 2 leaves the heliosphere of our solar system to enter in the interstellar space. This space probe is still informing us about the density, temperature and plasma of interstellar space.

Achievement of voyager program

Both, voyager 1 and 2 has already done their job by exploring outer planets of our solar system and now both are travelling aimless in interstellar space.
Voyager program

Voyager space probes have been achieved much more achievement than any other probe; as they explore outer planets of solar system and still informing us about the empty space.

At the time of launch everyone realise that voyager will cross the edge of solar system, hence the idea was to leave a message for alien or people’s of other planet, so that they can also able to know that ‘there is another civilisation on earth known as humans’ if they find that massage.

The idea of leaving a message for aliens was of Carl Sagan. Therefore, a golden phonograph record was prepared which stores the information about human civilisation. The method of playing the phonograph was also printed on that phonograph and it stores total 55 languages of ours.
115 images also stored in that photograph, which are of human culture, human food, pictures of solar system and many more.
Phonograph in Voyager 2
After the study of the last planet Neptune, Carl Sagan wanted to turn the camera’s of voyager towards our earth and take a picture of that look. Voyager does that, from the outer edge of our solar system our earth looks like just a dot and nothing more than that.

The image of earth taken by voyager was quite sentimental image for astronomers. Now voyager is travelling in interstellar space and saving the proofs of existence of humans for other civilisation.

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